One-way detent drive, e.g., ratchet

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60
This subclass is indented under subclass 58.  Wrench or screwdriver wherein the clutching elements include a catch, dog, pawl or similar detent means, so arranged that movement of the handle in one direction will drive the head while movement in the opposite direction permits relative rotation of the head and handle.
(1) Note. These wrenches or screwdrivers are commonly known as "ratchet" wrenches or screwdrivers.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29+,for a bit stock provided with ratchet mechanism for driving the bit.
58.4,for wrench or screwdriver wherein a detent-type clutch is positively engaged for driving in both directions of movement of the handle.
59.1,for wrench or screwdriver wherein a ball or roller is wedged between two surfaces to effect driving engagement between the handle and head.

 
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Patent Number
Title
  Date
3969962 Friction drive wrench Jul-20-1976
A wrench includes an elongated shank, an axial cavity in one end of the shank, a radially split annular driving member formed with radial tangs fitting into the axial cavity in the shank, a cylindrical head mounted within the driving member and frictionally gripped thereby, and manually actuable means...     
4080851 Variable racket wrench Mar-28-1978
A rachet wrench fitted with a rotatable wrench lug that completely encloses a non-circular wrench opening, when installed, with the wrench lug formed of two assembled units, one of which is detachable to permit the wrench lug to be installed sidewise about a fitting on a tube, pipe or cable. A handle...     
4123953 Ratchet wrench Nov-7-1978
An improved ratchet wrench is provided which includes an elongated handle, a circular head portion connected to the handle, a socket formed in the head portion, and a ratchet mechanism mounted within the socket. To provide increased strength characteristics, an internal core member, formed of steel,...     
4149820 Pipe tapping ratchet assembly Apr-17-1979
A pipe tapping ratchet assembly is disclosed herein which comprises a ratchet handle and a socket attachment received thereon. The socket attachment defines an aperture within which an adapter is received, the aperture and the adapter being configured to prevent relative rotation therebetween. A tap...     
4240309 Ratchet devices Dec-23-1980
A ratchet device which comprises a rotatable driving member, a rotatable driven member, first and second ratchet means through which the driving member rotates the driven member when the driving member is rotated in respective first and second directions, and means which automatically permits to-and-fro...     
4259883 Drop-out socket wrench Apr-7-1981
A socket wrench of improved design which not only provides for interchangeability but also for easy removal of the socket member. The ratchet and socket openings are provided in separate annular coaxial members. The ratchet wheel is adapted to loosely receive a removable socket insert. The periphery...     
4302990 Socket wrench Dec-1-1981
A socket wrench comprises a ratchet head which is removably held in an aperture in the forward end of a ratchet handle. A knurled drive ring allows the ratchet head to be used when detached from the handle and the handle itself is hollow and receives a tray which is dimensioned to hold a plurality of...     
4308768 Ratchet lever Jan-5-1982
A ratchet lever with a ratchet head arranged on an actuating arm which has a head ring for receiving an interchangeable locking ring. The locking ring has an intermediate piece with at least one four-sided hole for plug or insert connection with a radiator nipple key.
4324158 Illuminated wrench Apr-13-1982
An illuminable wrench of the ratchet type in which the tool handle defines a receptacle for battery cells. A lamp or bulb is retained in the head of the tool and is connected in a circuit to the batteries and may be actuated to illuminate a work area. In one embodiment of the present invention, the bulb...     
4334445 Z Style speed wrench Jun-15-1982
A wrench which includes an elongated shaft having a device at one end to receive a drive, such as a handle or the like, which drive usually is free to rotate on the elongated shaft, and a device at the other end to receive a socket or similar article. Alternatively, the other end may itself be configured...     
4339970 Serviceable releasable socket retaining ratchet Jul-20-1982
This disclosure relates to a ratchet type wrench which incorporates a totally disassemblable socket retaining apparatus so that the ratchet can be disassembled for cleaning and service.
4399722 Socket wrench including quick-release adaptor Aug-23-1983
An improved pushbutton quick-release socket wrench includes an adaptor which comprises a hollow elongated member having a spring-loaded elongated member mounted axially within a central recess. A ball extends through the side wall of the member at one end of the member to engage a bearing recess in a...     
4406186 Dual action ratchet wrench Sep-27-1983
A ratchet wrench includes a body which carries a shank adapted to be removably fitted into a socket head for the purpose of rotating a socket head to turn a nut in the socket onto or off of a bolt. A handle pivot pin is mounted on the wrench body at a side opposite the shank to have its axis parallel...     
4436004 Universal multi-socket ratchet wrench Mar-13-1984
A universal multi-socket ratchet wrench comprises in combination a socket gripping body having a plurality of cross slot equally formed around the longitudinal wall of the open head for respectively and movably receiving a gripping member therein defining an adjustable hexagonal socket thereof; a rotary...     
4468990 Socket wrench assembly Sep-4-1984
A reversible ratchet socket wrench assembly having a handle portion with a base containing the gear mechanism and a cylindrical sidewall at the upper edge of the base. The cylindrical sidewall and the base define a recess for storing sockets and a cover on the upper edge of the cylindrical sidewall closes...     
4488459 Ratchet wrench Dec-18-1984
A closed or open end ratchet wrench head comprising a substantially hollow cylindrical body with a plurality of recesses or pockets formed therein in communication with the central opening of the cylindrical body. A plurality of flexible, swinging pawls that act as jaw members are located in the recesses...     
4488460 Ergonomic handle for hand tool Dec-18-1984
An improved ergonomic handle for a hand tool or other implement has a substantially elliptical cross-section taken in a first plane which forms a dihedral angle of approximately thirty (30) degrees with respect to a second plane which is normal to the longitudinal axis of the shank of the tool. The length...     
4512217 Linear ratchet Apr-23-1985
A ratchet wrench has a member provided with a graspable handle. Two toothed racks are mounted on the member and biased to move inwardly of a slot. A socket has a pawl-like toothed portion extending circumferentially thereabout and engaging both racks. The teeth of the racks are arranged to face in opposite...     
4541310 Multiple-use ratchet tool Sep-17-1985
A multiple purpose ratchet tool including a reversible, and preferably, lockable ratchet head having an output shaft adapted to receive a tool bit such as a socket or screwdriver blade for use, and also including a main handle portion and an auxiliary handle portion matable to the main handle portion...     
4611514 Multi-purpose socket ratchet wrench Sep-16-1986
A multipurpose socket ratchet wrench with a socket recess above the ratchet and a socket probe below the ratchet attached to a grip lever handle capable of attaining a plurality of secured angled positions relative to the ratchet head. A forked lever balance auxiliary handle is provided that is attachable...     
4644830 Ratchet wrench Feb-24-1987
A closed or open end ratchet wrench head comprising a substantially hollow cylindrical body with a plurality of recesses or pockets formed therein in communication with the central opening of the cylindrical body. A plurality of flexible, swinging pawls that acts as jaw members are located in the recesses...     
4662251 Orthogonal adjustable socket wrench May-5-1987
An adjustable socket wrench in which the ratchet head is orthogonally pivotable with respect to the wrench handle. A ratchet housing is integral with one end of the handle and has a substantially circular hole therein. The hole has a partially spherical interior surface with first and second flat portions...     
4703676 Ratchet wrench with multiple tools Nov-3-1987
A handle member having at least one circular opening proximate an end, and having a ratchet pawl engageable proximate the opening, and having a spring biased link engageable into and out of the opening, and also engageable against the ratchet pawl for disengaging the ratchet pawl when the link is disengaged...     
4747328 Swivel arm ratchet wrench May-31-1988
Ratchet wrench composed of a head having a ratchet system for controlling or locking the shank of the ratchet wrench. Connected to the head of the wrench through a neck is a cylinder structure. The cylinder structure includes circumferentially spaced longitudinal grooves and is connected to an arm by...     
4770071 Tool drive mechanism Sep-13-1988
A tool drive includes upper and lower coaxial manually rotatable drive members and a driven tool member at the bottom of the lower drive member. A reversible unidirectional transmissions rotatably couple both the upper and lower drive members to the driven member. The transmission coupling the lower...     
4807500 Reversing ratchet mechanism for tools Feb-28-1989
A ratchet drive tool includes ratchet head that has a cylindrical aperture and a drive member rotatably mounted in the aperture. The drive member has a drive shaft that projects axially outwardly of the aperture and a pawl support structure oppositely positioned from the drive shaft. The pawl support...     
4909106 Ratchet wrench Mar-20-1990
A ratchet wrench including an elongated handle having one end provided with a retainer, and a socket member attached to the handle's one end by means of a loop of high strength, flexible material such as carbon fibers, metal wire or the like, the loop extending around the retainer and socket member....     
4939961 Reversible wrench Jul-10-1990
The present invention provides a reversible wrench which comprises a first gear face disc having a single side profile teeth on one of its flat sides and a square central hole, and rotatably mounted in one end of the wrench body; a second gear face disc having a symmetrical single side profile teeth...     
4974475 Cordless powered ratchet wrench Dec-4-1990
A cordless powered ratchet wrench includes a ratchet actuator that selects a direction of rotation of an output shaft that is adapted to hold rotating tools for use. The ratchet actuator also serves as a ratcheting stop to permit a limited amount of ratcheting motion for manual tightening or loosening...     
4991468 Barrel type sockets Feb-12-1991
The present invention provides a socket comprising a barrel of uniformal polygonal cross section having an axial polygonal wrenching aperture at the center and a slant inward chamfer at the outer surface of each end of the barrel. The socket is detachably received by a driver wheel of a ratchet wrench,...     
5010792 Socket wrench drill attachment Apr-30-1991
A ratchet wrench having an auxiliary triangular cross-sectioned stub shaft projecting therefrom for engagement in the chuck of a power drill. With the ratchet held in one hand, the power drill can be operated with the person's other hand to rapidly spin a nut or bolt off of (or onto) a threaded work...     
5069091 Screwdriver with pivotal handle Dec-3-1991
A handle for a screwdriver-type tool rotatable about a tool axis has a front handle portion having a front end adapted to carry the tool and a rear end formed with a pivot centered on an axis transverse to the tool axis and spaced by a predetermined axial distance from the front-portion front end. A...     
5113726 Utility tool May-19-1992
A utility tool (10) for gripping a pipe nut and rotating the pipe nut about a pipe. The utility tool (10) includes a pair of cooperating jaw members (20 and 34) pivotally connected at one end (26 and 42) such that the jaw members (20 and 34) may be opened to receive a pipe nut (130) and closed to grip...     
5115699 Continuous drive ratchet tool May-26-1992
A continuous drive ratchet tool apparatus is comprised of drive disks adapted to be connected in driving engagement with a bolt head or nut threaded fastener, a disk housing having an opening extending through the housing and a bearing channel communicating with the opening, one of the drive disks being...     
5148724 Ratchet wrench and socket apparatus Sep-22-1992
A plurality of sockets are provided, wherein each socket is coaxially aligned and includes a first and second polygonal cavity directed interiorly and longitudinally of the socket from each opposed terminal end thereof. A socket member web is orthogonally oriented relative to an axis defined by the socket...     
5178047 Reversible ratchet wrench Jan-12-1993
A reversible ratchet wrench has a handle portion and a head portion. The head portion includes a drive member having teeth thereon and a pawl having teeth which selectively engage the teeth on the drive member. The head portion has two partially overlapping cavities formed therein, the cavities being...     
5197358 Socket wrench Mar-30-1993
A socket wrench has a box end which confines an internal wall therein. A pair of rollers are connected rigidly by an eccentric shaft and are received in the box end. A pair of retaining plates are provided in the box end on both sides of the box end so as to retain the rollers therein. A resilient plate...     
5233891 Detent means Aug-10-1993
A one-piece detent for mounting in a bore, the detent including a foot, a head and a resilient connecting member therebetween. The foot is disposed against a stop in the bore and the connecting member urges the second end outwardly from the bore. The connecting member provides a resiliency when a force...     
5249487 Open-end ratchet wrench Oct-5-1993
An open-end ratchet wrench is shown which has a handle and a generally C-shaped head at one end of the handle providing a pair of open-ended jaws with spaced confronting jaw faces. The jaws are provided in the form of a plurality of rotatable toothed gears which are presized and prealigned to engage...     
5257556 Torque application technique and apparatus Nov-2-1993
A tool which produces a measured torque is coupled to a bolt head or nut, cated in a relatively inaccessible area, by apparatus which includes a wrench member affixed to an adaptor. The wrench member is sized and shaped to engage the fastener to be operated upon and the adaptor has a tubular construction...     
5365807 Through-hole socket Nov-22-1994
A socket tool for releasable securement to a wrench having a drive wheel provided with a drive opening. The tool includes a fastener-receiving part defining therein a fastener-receiving opening for nonrotatable driving engagement with a conventional fastener such as a nut or bolt head. A drive part is...     
5392672 Ratchet wrench Feb-28-1995
A ratchet wrench imparts rotational movement to a relatively large workpiece such as the stem of a water main valve or a fire hydrant. The wrench includes an annular driver member, a housing having an elongated recess, a pawl element and a bias element. The annular driver member is adapted to detachably...     
5419221 Indexable head ratchet wrench May-30-1995
A ratchet wrench comprises a ratchet head having a conventional ratchet system for rotating a shank about an axis. A generally cylindrically shaped connecting pin aligned along an axis parallel to the shank axis is attached to the ratchet head. The connecting pin extends through a splined orifice in...     
5425291 Unidirectional driving head assembly Jun-20-1995
A driving head includes a housing having an open end enclosed by a cap, a core is rotatably disposed in the housing, the core includes a block engaged in the housing and a stub extended through the cap. The block has a number of flat surfaces formed on the outer peripheral portion such that a number...     
5454283 Ratchet line wrench tool Oct-3-1995
A ratchet line wrench tool has generally C-shaped housing with a hollow portion for receiving a line fitting nut, said hollow portion defined by an inner ratchet gear within said housing, said catcher gear engageable by reciprocating teeth with teeth of a dog gear held in place by a biasing spring within...     
5471899 Extensible ratchet wrench Dec-5-1995
An extensible ratchet wrench has a main inner shaft with a ratchet head at one end, aligned lock pin holes along the shaft, and a lengthwise grooved guiding track disposed on the opposite side of the shaft. An outer sleeve is mounted telescopically and fits snugly about the main shaft for axial movement...     
5507208 Conversion ratchet drive Apr-16-1996
A conversion ratchet drive (10) for use with socket wrenches having various sizes of ratchet receptors, the ratchet (10) being provided with at least one output shaft sleeve (30) for effectively adjusting the side length thereof. The ratchet (10) is provided with an output shaft (16) which extends from...     
5517884 Ratchet speed wrench handle May-21-1996
A speed wrench is formed by threadedly connecting a handle extension to the end of a ratcheting wrench handle opposite the wrench head for increasing torque of the handle. The wrench handle opposite the head is centrally bored for slidably receiving a rod member hingedly connected with the handle extension...     
5522287 Ratchet handle of socket wrench Jun-4-1996
A socket wrench ratchet handle structure includes an elongated handle body having at least a ratchet head mounted to a first end thereof. The ratchet head has a through hole formed thereon to receive therein a driving member which a first driving plug and a second driving plug extending therefrom to...     
5535648 Ratcheting screwdriver Jul-16-1996
A ratcheting screwdriver is operable in reverse ratcheting, forward ratcheting and locked non-ratcheting modes. The screwdriver includes a rotatable handle having along an end thereof a substantially cylindrical interior wall defining an annular base surface and an axial bore. The base surface includes...     
5557991 Calibration hand tool Sep-24-1996
An improved driving hand tool allows for precisely adjusting or calibrating small electronic or mechanical components. The tool may be used to adjust, for example, the resistance of a potentiometer, the frequency of a crystal oscillator, or the fuel flow rate of a carburetor. The tool includes a tumbler...     
5619890 Spanner Apr-15-1997
A improved spanner includes a lever handle, coaxial interior and exterior rings, a plurality of columned cams with non-circular cross section retained in an annular space formed between both rings, an annular spring for rolling each columned cam on the outer peripheral surface of the interior ring and...     
5636557 Ratchet type ring spanner Jun-10-1997
A ratchet-type ring spanner includes a handle and a head portion which, in turn, includes a circular peripheral wall defining a receiving compartment therein and including a web area which connects with the handle, a cavity being defined in the web area. A ratchet wheel is received in the compartment...     
5653151 Reversible ratchet driving tool Aug-5-1997
A two sided ratcheting driving tool. Each side has a rotatable receptacle constrained to rotate in only one direction by interengaging teeth formed in the receptacle and in its housing. A leaf spring urges the receptacle into the engaged position with respect to the housing. In one direction, the receptacle...     
5662174 Battery powered palm ratchet tool Sep-2-1997
A battery powered palm ratchet tool including a hemispherical palm grip. The palm grip has an upper body with a gripping ring and an under side interconnected to a stop. The upper body encases a battery and a motor powered by the battery. The upper body has a plurality of teardrop-shaped sections interconnected...     
5685204 Miniature reversible ratcheting screwdriver Nov-11-1997
A reversible ratcheting driver handle has an axial cavity in one end receiving an insert which defines an axial compartment for receiving a ratchet mechanism including a rotatable gear and two pawls seated in recesses in the insert and for reciprocating movement along parallel paths between engaged and...     
5687623 Reversible socket wrench Nov-18-1997
A reversible socket wrench including a socket having two radial through holes and an outside annular groove around the periphery, two locating devices respectively mounted in the radial through holes, a clamp mounted in the outside annular groove and moved between two positions to alternatively force...     
5692420 Socket wrench with impact drive Dec-2-1997
A socket wrench has a body with a handle, and a head with a hollow cavity. A ratchet mechanism is received in the cavity and has a drive shank for connection with a socket. The ratchet mechanism is pivotally connected to the head in order to allow the head to pivot relative to the ratchet mechanism in...     
5709137 Torque clutched reversible ratchet wrench Jan-20-1998
A two sided or headed ratcheting driving wrench. Each side or head has a rotatable receptacle constrained to rotate in only one direction by interengaging teeth formed in the receptacle and in its housing. Both sets of teeth may be pointed or rounded. In one direction, torque locks the receptacle to...     
5740704 Socket wrench Apr-21-1998
A ratchet wrench (10) includes a unitary socket assembly (20) having a collet (26) and an adjustable fastener engaging socket (24) which may be positioned over a conventional fastener and which may then be decreased in diameter to effect a gripping attachment of a fastener. The socket assembly (20) includes...     
5749271 Dual purpose ratchet screwdriver May-12-1998
A ratchet screwdriver includes a handle having a chamber in its interior for accommodating a ratchet mechanism, a drive sleeve of the ratchet mechanism being provided to cooperate with a transmission shaft inserted through a hole of the handle, the transmission shaft having a bit at either end, the bit...     
5775184 Indexable wrenches Jul-7-1998
A ratchet wrench including the preferred embodiment of the invention comprises a ratchet head having a conventional ratchet system for rotating a shank about an axis, a connecting pin, and a handle. The generally cylindrical connecting pin is aligned along an axis parallel to the shank axis and is attached...     
5794496 Pawl module for ratchet wrench Aug-18-1998
A low profile ratchet wrench has an opening formed through the head of the wrench. A pawl module having a body, a detent mechanism, a reversing lever and a pawl is received in a portion of the opening. A socket having a first portion with circumferential gear teeth and an integral second portion having...     
5797300 Collapsible ratcheting socket wrench Aug-25-1998
The present invention is a collapsible ratcheting socket wrench having a ratcheting member and a first and second rod pivotally carried by the ratcheting member. Connected to the ratcheting member is an extension and a socket that are designed to engage a lug nut on a vehicle's tire. The first rod and...     
5816119 Tightening tool, especially screwdriver Oct-6-1998
A tightening tool which includes a driving part forming a grip of a handle of the tool and a driven part which includes a blade holder and is a complementary distal part of the handle. These two parts have, in a first position of use, a common axis of rotation, a device for allowing tilting the driving...     
5842391 Wrench with ratcheting action Dec-1-1998
A ratchet wrench having a handle and an integral head. The head has a chamber formed therein with a wall about the chamber. At least one tooth is formed on the wall and projects into the chamber. A cylindrical rotor having a plurality of axial teeth is disposed in the chamber. The chamber is non circular...     
5873286 Flex pawl Feb-23-1999
A pawl for a ratchet wrench to be engaged with a ratchet gear. The pawl has a slot formed on each side of the pawl. The slot extends between the top and the bottom of the pawl near the teeth on the front of the pawl. The pawl flexes to compress the slot when torque is applied to the wrench and engagement...     
5878635 Reversible ratchet wrench Mar-9-1999
A ratchet wrench having an annular wheel mounted within one box end thereof, the annular wheel having a plurality of longitudinal teeth equiangularly spaced around the inside for grasping and turning nuts, bolts, etc., and two symmetrical pairs of grooves longitudinally disposed on the outside at two...     
5884537 Ratchet tool Mar-23-1999
A ratchet tool includes a housing having an oval inner peripheral surface, and a core rotatably engaged in the housing for forming two curved slots between the housing and the core. The curved slots each includes two narrower end portions and a wider middle portion. Two pairs of wedges are slidably engaged...     
5894766 Ratchet screwdriver Apr-20-1999
A ratchet screwdriver has a handle portion, a connection rod connected to the handle portion, a joint sleeve disposed on the connection rod, a circular hole in the joint sleeve, a first volute spring disposed in the circular hole, a chuck sleeve having a hexagonal blind hole and a round hole, and a bit...     
5901620 Sockets for a ratchet wrench May-11-1999
A socket to be received in the opening in the head of a low profile ratchet wrench. The ratchet wrench has an annular lip formed partially circumferentially about the opening in the head. The socket has a first axial portion and an integral second axial portion. An opening which has surfaces to engage...     
5910196 Reversible ratchet screwdriver Jun-8-1999
A reversible ratchet screwdriver in which a shank having annular grooves around the periphery is retained in an axial center hole on a control head at one end of a handle by springs and steel balls, a ratchet shifter is moved in a transverse sliding slot on a shell around the control head to shift two...     
5921158 Sealed reversible ratchet wrench Jul-13-1999
A reversible ratchet wrench includes a ratchet body having a round head portion with a cylindrical, internally toothed opening therethrough forming a ratchet gear and defining a cavity. A ratchet mechanism, including a drive body, a pawl assembly and a reversing member, is disposed in the cavity, with...     
5927158 Combination ratchet wrench Jul-27-1999
A combination ratchet wrench includes a work end at one end of a handle, a ratchet wheel mounted in the work end, a stop block forced by a spring and a ball into engagement with the ratchet wheel to limit the turning direction of the ratchet wheel for permitting the ratchet wheel to be turned with the...     
5941141 Indexible wrench Aug-24-1999
An indexible tool (for example a wrench) in which the handle of the tool stays in a constant horizontal plane with respect to the horizontal plane of the head of the tool and the tool has locked and unlocked positions through a movable splined pin connecting the head and the handle of the tool.
5943924 Integral multi-sized socket tool Aug-31-1999
An adjustable hand tool comprising an integral multi-sized socket tool, including a drive handle, and a multi-tiered drive mountable to said drive handle, said multi-tiered drives providing either a series of tiers of drives all extending concentrically from one end of the drive, or said drives being...     
5960680 Ratchet wrench Oct-5-1999
A ratchet wrench is provided that includes a link control structure in which the control rod slides smoothly in the D-head to control the ball that locks the joint with a socket or releases the joint. A new bolting joint structure between the D-head and the reversing disc is provided that consists of...     
5967003 Ratchet screw driver Oct-19-1999
A ratchet screw driver includes a handle having a tube and having a number of ratchet teeth and a driving stem rotatably engaged in the tube. A follower is slidably engaged on the driving stem and includes a number of ratchet teeth for engaging with the ratchet teeth of the handle. A spring may bias...     
5970825 Magnetic ratchet/clutch type apparatus Oct-26-1999
Socket-type wrenches using a magnetic ratchet/clutch-type apparatus are disclosed. The apparatus preferably employs several pawls, as well as a ratchet-type wheel for engaging the pawls. The apparatus also utilizes the wrench's body which defines a chamber in which the wheel is received for rotation...     
5974916 Wirenut driver Nov-2-1999
A wirenut driver includes a ratchet ball which drives a socket. The ratchet ball is formed with a center opening which allows the ratchet ball to receive a stem of the socket in either end thereof for rotation in either the clockwise or counterclockwise direction. The socket is formed with a center bore....     
5988022 Ratchet wrench Nov-23-1999
A ratchet wrench including a handle and at least one fitting wheel rotatably mounted at one end of the handle. A middle section of outer side of the fitting wheel is formed with multiple annularly arranged teeth. A spiral rod is rotatably connected with two pivot sections of the handle near the fitting...     
6000299 Modular tool system Dec-14-1999
A modular tool system includes a tool head, a handle, and an intermediate piece disposed therebetween. The handle includes a first pin for coupling the handle to the intermediate piece and the intermediate piece includes a second pin for coupling the intermediate piece to the tool head. The first and...     
6003413 Compact ergonomic ratchet wrench Dec-21-1999
A wrench tool which has a head and connected handle formed as a lever. The head has a ratcheting mechanism and a distinctive shape different than the connected handle. The ratchet type wrench also has a gripping means with dimensions of length greater than width, and width greater than thickness. The...     
6006631 Through-hole quick release adapters Dec-28-1999
An adapter is provided to enable conventional post driven sockets to be used in conjunction with through-hole ratchets, which adapter includes a housing sized and shaped for nested engagement in the socket holding member of the through-hole ratchet, a square post which is sized for snug fitting disposition...     
6032555 Indexible wrench Mar-7-2000
An indexible tool (for example, a wrench) in which the handle of the tool stays in a constant horizontal plane with respect to the horizontal plane of the head of the tool and the tool has locked and unlocked positions through a movable splined pin connecting the head and the handle of the tool.
6035746 Gear transmission cartridge Mar-14-2000
A cartridge includes two stems rotatably received in a housing and each having a gear extended inward of the housing. A gear transmission device is coupled between the gears of the stems for allowing one of the stems to be driven by the other stem with a greater speed and the other stem to be driven...     
6044731 Double-reversible ratchet wrench Apr-4-2000
A double-reversible ratchet wrench, which includes a body having a receiving chamber at one end, a ratchet wheel mounted within the receiving chamber, a stop block with two toothed portions mounted within the receiving chamber and meshed with the ratchet wheel to limit the direction of rotation of the...     
6047617 Ratchet tool Apr-11-2000
A ratchet tool includes a housing having a pair of protrusions oppositely extended inward of a chamber for forming two pairs of parallel channels. A gear is rotatably received in the chamber of the housing and has a driving shaft extended outward of the housing. Two pairs of pawls are slidably engaged...     
6053076 Offset head ratchet wrench Apr-25-2000
The invention is an improved ratchet wrench with a handle pivotally attached to a rotating head which can be locked into a position either axially aligned with the handle or laterally angled to one side of the handle. A locking mechanism includes a spring-biased, J-shaped structure, having an actuating...     
6058812 Screwing tool with a ratchet May-9-2000
Screwing tool (1) with a handle (2), tool holding fixture (3) and ratchet (4), in which the ratchet has a pivotally mounted ratchet element (6) which has several catch cams (5), and a first stop bolt (7), in which stop bolt (7) can be engaged with ratchet element (6) by displacement in an axial direction...     
6067881 Hand tool May-30-2000
A hand tool for turning sockets connectable to nuts and bolts has a handle attached to a head having an inside cylindrical surface. A body joined to a member for holding a socket has a plurality of pockets facing the cylindrical surface and chord ramps at the bottom of the pockets. Rollers located in...     
6089129 Adjustable wrench Jul-18-2000
An adjustable wrench including a fixed jaw, a movable jaw, a gear, an engaging block, a switch button and a grip. When tightening or untightening a nut with the adjustable wrench, it is unnecessary to repeatedly draw up the wrench and fit the wrench onto the nut. The nut can be continuously rotated....     
6112622 Fluid-operated tool Sep-5-2000
A fluid-operated tool for tightening and loosening threaded connectors has a ratchet unit including a ratchet connectable with a threaded connector to be tightened and loosened and provided with a plurality of teeth, and a pawl engageable in and disengageable from the teeth of the ratchet, a drive connected...     
6138531 Hand ratchet wrench Oct-31-2000
A hand ratchet wrench with opposed parallel sides permits utilization of a fixed jaw or adjustable wrench for driving difficult work pieces. In addition, the hand ratchet is provided with a mechanism that permits quick release from socket bits and reversal of the ratcheting mechanism. Finally, an optional...     
6148696 Ratchet screw driver Nov-21-2000
A ratchet screw driver includes a barrel having a stud en gaged into a handle and having a pair of opposite passages for slidably receiving a pair of pawls. A gear is rotatably received in the barrel and has an aperture for receiving various kinds of driving stems. A spring is engaged on the barrel and...     
6151993 Ratchet spanner Nov-28-2000
A ratchet spanner includes a spanner body with a head portion confined by a peripheral wall. Top and bottom flanges extend inwardly and radially from top and bottom ends of the wall. The top flange has a curved inner peripheral surface with an open-ended slot. The bottom flange defines a bottom opening,...     
6205889 Ratchet socket wrench Mar-27-2001
A ratchet wrench stop member positioning arrangement having a stop member mounted in a transversely extended side hole in the body thereof and forced by a spring member into engagement with peripheral teeth of a ratchet wheel in a box in one end of the body, wherein the longitudinal central axis of the...     
6240809 Modified ratchet devices Jun-5-2001
An apparatus comprising a first handle, a second handle, and a ratchet device is disclosed. The ratchet device has an attachment end and a base. The attachment device is rotatable with respect to the base either clockwise or counterclockwise but not both. The ratchet device has a left side and a right...     
6253646 Roller-type ratchet device for wrench Jul-3-2001
A roller-type ratchet device is used for a wrench which includes a driving head defining a receiving hole and a plurality of actuating recesses. The ratchet device includes a driving body secured in the receiving hole to rotate with the driving head, a follower secured between the driving body and the...     
6257096 Socket adaptor for ratchet Jul-10-2001
A socket adaptor is mounted to a box end of a ratchet-type ring spanner of the type having a hollow ratchet wheel rotatably mounted in the box end. The socket adaptor includes a disc, a mediate section projected from the disc and releasably engaged with the hollow ratchet wheel mounted in the box end...     
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