CLOSURE CHECKS

A piston is mounted for relative sliding movement in the cylindrical bore of a sleeve. The piston comprises a plurality of piston parts, one, a driving piston part connected with a prime mover or a fixed support. A piston rod, supported by the piston at one end and by a sleeve guide at the other end,...     

A window lock for double-hung windows utilizing extension elements joined to each separate window and telescopically mated one with the other with a latch assembly on one element and longitudinally spaced catches on the other element whereby the windows are held in closed or in alternate relative positions...     

An auxiliary lock is disclosed which is intended to be used as a night lock in combination with the hinge of a conventional door. The device includes an elongated cross bar and a plurality of adjustable stop members which project from and are threadedly received in said cross bar and are adapted to engage...     

A door check having a slidable arm mounted on a multi-stepped shoulder fastener has means for pivotally mounting the arm on the door of a refrigerator display case or like apparatus at one end thereof and has an elongated slot extending from the mid portion of the arm to an opposite end thereof which...     

The linear motion arresting device has a stationary member with an internal bore. A mating piston, formed of a plurality of piston parts, is slidable in said bore. One piston part is connected to a prime mover and the others are slidable toward and away from, and lengthwise of, said one piston part....     

An apparatus to vary the degree which a door may be opened and held in place. An operating arm of the door holder is pivotably mounted to a slide which is mounted within a slide channel. Holding means releasably hold the slide at a fixed position within the slide channel. The other end of the operating...     

A device which protects the knob of a door lock to prevent the breaking thereof and entry includes an outer cylindrical member rotatably secured about the knob assembly by the rose of the knob assembly. An inner cylindrical member is secured about the knob assembly, and includes a plurality of axially...     

A door stop which may be inserted between a door and the floor to hold the door in a given position. The device is formed with an aluminum sheet metal base to which foam rubber or plastic foam material is bonded. A flexible plastic cover sheet is fastened on top of the foam material.

An improved gate stop is disclosed comprising a flat plate having a forward first section, a central second section, and a rear third section. A narrow slit is cut through the plate following a path beginning at the junction of the second and third sections near the lower boundary of the plate, extending...     

This invention relates to a door closer and holder having a longitudinally movable rod containing a niche which rests against a stop plate to hold the door in an open position. A rotating cam is positioned adjacent the niche in the rod so that further movement of the rod in a longitudinal matter rotates...     

An automatic door closer includes a closer shaft to which the door to be closed is connected for turning movement therewith about the axis thereof, and spring means biasing said closure shaft to a position in which the door is closed. The door closer includes further means for releasably holding the...     

A stop for limiting the upward movement of closures such as slidable windows and doors, which stop has a body portion adhesively securable to the frame of said window or door and limiting the upward movement of said window or door within said frame.

A door closer comprising a plate-shaped mounting bracket which is fixed to a door and has a pair of elongate tongue-shaped male coupling portions at both edges thereof, and a main body of the door closer which has a pair of elongate groove-shaped female coupling portions at the outer side face thereof,...     

A door support bracket includes a slide member telescopically inserted in a housing bracket member. The housing bracket member is attached to a horizontal hung door by means of a swivel bracket. The free end of the slide member is pivotally attached to the frame for the door. The housing bracket member...     

A door arrestor which can be fitted to the lintel of a door frame. The arrestor has a body part which is secured to the lintel and a plunger part which projects from the body part and can move into the body part when struck by the closing door. For a door shutting rapidly the plunger is arrested after...     

A retarder roller for limiting the speed of a free running load on an inclined conveyor. The roller comprises a stator and a rotor rotatable mounted on the stator and forming a housing for the stator. The housing is filled with silicone putty. The stator and housing are provided with vanes for cutting...     

A device for controlling the opening or closing speed of a door includes a piston-piston rod assembly slidably fitted in the inner tube of a dual tube hydraulic cylinder. Oil is enclosed in the inner tube and in a portion of the outer tube, and a high pressure gas is enclosed in the outer tube for affording...     

A door closer and a connector are joined to a door panel and a door frame. The connector includes an arm and a restraining device such as a track or a link. The arm has an arm base fast on a shaft projecting from the closer for rotation about a first axis and has an arm extension at one end connected...     

A thermally insulated freeze-proof cap which can be easily installed with a specially designed face plate on the existing outdoor faucet without dismantling any part of a faucet. The invented cap can prevent freezing of water pipe line or the like and heat loss through faucet and space between the wall...     

A stay for use with a cover or the like and having a cylinder containing a pressure fluid medium and a piston arranged for movement into and out of the cylinder. The piston rod carries a piston which is slidably arranged within the cylinder and which itself is mounted on the piston rod for axial displacement...     

The improved burglar-resistant door assembly of the invention comprises a door frame, a door hingedly connected to one side of said frame, door latch means connected to the inside surface of said door, a peephole device extending through said door and a protective cover device releasably disposed over...     

The invention relates to a combination door stop and catch in the form of a molded unit adapted for mounting to the wall surface behind a door in its open position, and adapted, not only to function as a stop for the door before the knob of the door can engage such wall, but to perform the additional...     

A burglar entry stop device including a stop component tapered down at a front end and an upright handle to permit convenient placement of the front end of the stop component under the bottom edge of a door and provide additional leverage to prevent a door from being forced open completely from the outside.

A door keeper for double swing doors that retains the doors against partially opening due to wind forces. The keeper includes a permanent magnet that is mountable to a door frame. The magnet includes a flat surface that may be positioned flush with the adjacent surface of the door frame. A roller formed...     

A door holding apparatus holds a door in a preselected position relative to a door support. The apparatus includes a rod which has a first end pivotally connected to the door and a second end for engaging the door or door support. Force exerting apparatus exerts a force against the rod and urges the...     

A stopper device for being mountable upon a door knob, and which serves as a bumper for limiting the pivotal travel of the door, thereby preventing a hard door knob bumping against a wall and damaging the same, the stopper device being made of a resilient material, such as either acrylic, plastic or...     

A friction support device adapted to support two members in variable positions relative to one another, through the utilization of friction, until an external force is applied to bring the two members together. The friction support device comprises a slide rod inserted into the aperture in a slide holder....     

A time delay device for delaying movement in one direction and permitting relatively free movement in the opposite direction wherein alternate plate members and wall members in a housing are coated with a viscous grease and the plate members are rotated through a shaft connected by a one-way clutch to...     

A door holder includes an elongated housing which has at least one first fixing member which is located on the housing in correspondence with a desired open position of the door. An elongated guiding sleeve is movably mounted in the housing for movement lengthwise thereof in response to movement of the...     

The present invention relates to a doorstop specifically adapted to be attached to the wing of an aircraft in a position for communicating with and limiting the opening arc of a door of the aircraft. The doorstop includes a base for coupling to the wing of the aircraft and an upstanding blade having...     

A floor mountable door stop having a quarter-spherical backstop portion with a substantially vertical backstop face, an integral tongue mounting portion extending away from the bottom of the backstop face, and an integral anchor member extending downwardly from the bottom end of the backstop portion,...     

There is disclosed a releasable door stop assembly for a bidirectionally swinging door including a retractable stop member which normally permits opening of the door in one direction, thus acting as a stop against opening of said door in the opposite direction. The stop member is free floating and is...     

Disclosed herein is a stop for doors which open into rooms having a solid carpet (such as wall-to-wall carpet that is fastened down) and comprises a handle, a base member and downwardly extending projections angulated so that they slant away from the door. When placed in proximate relation to the door,...     

A security door stop bolt mounted in the floor preventing entrance through the door including a tube housing imbedded in the floor with a door stop sliding in the tube, nestled in the tube when not in use but raised with a manual lifting means to prevent inadvertent triggering of the stop bolt with a...     

A device is provided for releasably locking one member in a predetermined extended position relative to a second member to which it is hingedly connected. The device includes a rod having one end portion pivotally connected to the one member and spaced from the hinge connection between the members. The...     

A laboratory fume hood with at least two vertically movable sashes that are operatively coupled together by a sash lock that prevents both of the sashes from being opened at the same time. Opening of one sash automatically flips a pivoted lock into locking engagement with the other sash. Thus, one of...     

An elongated substantially flat body has longitudinal rounded bosses extending from one side thereof, and an opening in the flat body accommodates the shank of a screw for affixing the body to a drawer, the longitudinal bosses contacting the drawer surface when the body is attached, the flat portion...     

A one piece molded strap assembly is provided to be employed in limiting travel between two movable parts. A pair of expandable bosses are connected by a resilient link and a drive pin is molded to each of the bosses which when separated from, and inserted into, a respective boss is effective to expand...     

A rotary damping device has a shaft provided at one end with a rotor and the shaft also has a damping portion extending radially. The shaft is rotatably housed and accommodation spaces in the device are filled with oil. Located near to the opening of the shaft bearing is a radially extended sucker-shaped...     

A door closing coordinator for a pair of oppositely hinged doors where closure of the inactive door withdraws a stopping member from a holding lever for the active door and permits the active door to close after the inactive door. An override mechanism is provided to permit the active door to close first...     

An enclosure for the end opening of a vehicle having one or more interior elevated decks includes a pair of door assemblies each comprising a plurality of pivotally joined panels. The door assemblies are suspended in a vertical manner by means of hanger assemblies having tracking elements guided within...     

A foot operated door stop adapted to be positioned in a floor opening adjacent the door so as to effectively limit its degree of opening as a safety and anti-burglar means. This door stopper is in the form of inner and outer telescopically mounted cylindrical members. The inner cylinder is spring urged...     

A door lock assembly comprising an anchor plate or other anchor means on the floor of a building spaced apart from a door with which the door lock assembly is to be used and in the direction which the door opens, and an elongated locking bar one end of which engages and is secured by the anchor plate...     

A door-stop for handicapped people and particularly people in wheel chairs which permits the person to push a self-closing door open and lock it in an open position before passing through the doorway. The door-stop is comprised of a pivoted cross bar mounted at a convenient height traverse to the door...     

A magnetic catch holds a door in the open position. A cup-shaped metal element is supported for universal rotary motion in a plastic housing mounted on the door. A flat end of the element projects through an open end of the housing and contacts the exposed edge of a rectangular permanent magnet when...     

A catch means as described which when fitted to co-operating parts of a piece of furniture enable those co-operating parts to be moved apart by a small amount after which, following manipulation of the catch means, may be more fully moved apart. The catch means is said to comprise a stop element and...     

An oil type damper comprises a rotor provided with a toothed wheel and a boss, a base seat provided with a tubular part adapted to be fitted to the boss of the rotor and a shaft adapted to be inserted into the interior of the rotor, and an oil sealer element adapted to be set in position in the interior...     

A stay mechanism for two hingedly connected members which are moveable between a first unengaged position and a second engaged position. An arm is hingedly attached at one end to a first member. The other end of the arm has a protrusion which is resiliently held in the pocket portion of a resilient strip...     

An oil type damper comprises a housing, a rotator formed of a hollow shaft and a braking disk, a flexible membrane, a toothed wheel secured to the leading end of the aforementioned hollow shaft, and oil introduced via the hollow shaft into the housing. Since the oil is introduced through the hollow shaft...     

A rotation damper comprises a base member, a gear wheel rotatably mounted on the base member via a damper, a spiral spring having one end attached to a cap member and the other end attached to the gear wheel and adapted to be wound up with the rotation of the gear wheel, and a locking member for locking...     

There is provided herein a portable door locking device for securing a door which consists of a base member having an abutment member adapted to abut one side of the door and supporting proximate thereto a tab arranged to engage the vertical door edge to prevent lateral movement of the device. The base...     

A door stop assembly for vertical insertion in a single hole in a floor in the path of a swinging door includes a tubular housing with a top flanged housing for retaining the assembly in the floor, a tubular door check rod within the flanged housing and spring biased to extend up into the path of the...     

A one-way clutch comprises a stationary panel rotatably supporting in place an inner toothed ring possessing inner teeth, an output toothed wheel provided on the stationary panel at a position not to be meshed with the inner teeth of the inner toothed ring, and a planet gear interposed between the inner...     

A door check consisting of a base plate having a check plate pivotally attached thereto so as to be pivotable upwardly therefrom to abut and check a swinging door, the base plate and the check plate being substantially the same shape and size, the base plate being adapted to be immovably affixed to flooring...     

An oil type damper comprises a housing formed of a basic member in the shape of a blind tube and a cap, a rotating member and a braking disc adapted to rotate jointly and accommodated within the housing, viscous oil applied to the braking disc, and at least one flexible membrane opposed to the braking...     

A retractable door stop comprising a body secured to a hinge assembly is described. The door stop is adapted to be pivotally secured to a door jamb on which a door is pivotally mounted. In use, the door stop is pivotable about an axis spaced from the pivot axis of the door and generally parallel thereto...     

The clamp/door stop device comprises an elongate frame including an elongate base with first and second feet each mounted at one end of the base. The feet rest on a planar supporting surface such as a floor. The platform on the base has a planar rest, and a frame portion extends upwardly from the platform...     

A damper for braking the opening speed of the hatch of a cassette tape holder of a recorder comprises a rotary member such as a gear member and a supporting member for supporting the rotary member, a viscous substance for producing a braking torque being charged in a clearance between the rotary member...     

A door check provides a positive stop at a hold open position, as well as being disengageable to provide a fully open position, and is automatically reengageable upon door closing. A check strap is pivotally mounted to a vehicle body and resiliently biased into sliding engagement with a stop pin fixed...     

Disclosed is a door security device for mounting adjacent a door comprising base plate means adapted to be secured to the frame of a door adjacent a floor. Wedge means is pivotally associated with the base plate means through two hinge means which hinge means are planar and perpendicularly oriented with...     

A keyless lock for a window, sliding door and the like is provided and is in a wedge shaped configuration so as to fit between two parts of the window and sliding door to prevent opening thereof.

Hinge mounted doorstops which include channel members having a normally horizontal perforated web and normally vertical opposed flanges on opposite sides of the web mountable on top of door hinge hubs, engaged by the top hinge pin, edges of the flanges engaging the hinge leaves to limit door opening...     

A door retainer for removably mounting on the folding steps of a recreational vehicle to prevent the door from opening, which door retainer is characterized by a flat step plate designed to fit on the top step of the folding steps and provided with a downwardly-extending rear plate for engaging the rear...     

A portable, selectively lockable door stop having a pair of telescopingly fitted rods with door brace linkage engaging channels is disclosed. The invention provides an adjustable door stop that coacts with existing door brace linkage to prop the door open at any desired width. The channels are pivotally...     

A door security system for the protection of a lock as well as a set of hinges both associated with a door wherein the security system includes a wrap-around cover plate covering surface portions of the exterior and interior of the door adjacent the lock and the lock side surface around the bolt plate...     

A door check wherein a housing is affixed to the pivotable panel and a guide rail is affixed to the frame of a door. The housing contains a shaft which is rigidly connected with one end of an arm the other end of which is slidably guided by the rail. The shaft carries a disc cam having two asymmetric...     

A door check for holding a vehicle door to any desired open position relative to the vehicle body includes a lever connected to the vehicle body, a casing connected to the door and receiving a roller holder for relative movement between the door and the vehicle body. The roller holder has a hollow portion...     

A door security device which is mounted in the floor or other flat surface in the arc of passage of a door which can be operated solely by one's foot. The door security device includes a housing with a flange plate which is mounted in the opening of the floor surface. A stop member is provided within...     

Security hardware for an exterior entry door in which a flat piece of metal is bent into a J-shaped door jamb mounted component and in which an aperture through which a door mounted article of hardware can project is provided in the single layer part an aligned buck pin apertures are provided in the...     

The present invention relates to an improved door holder which includes an elastic ring which is slipped over the door knob, a flexible belt which is mounted to an adjacent wall structure and a device in the likeness of an animal or creature which interacts with the belt and elastic ring to hold the...     

A closure check for temporarily bracing open a conventional cylinder/piston mechanism. The closure check comprises a longitudinal brace, positioning means, engagement means and disengagement means. The closure check can automatically engage with the cylinder/piston mechanism or can be engaged manually...     

A storm door lock apparatus is set forth wherein a clamp is secured to an associated screen-door type closure member that further secures a slidable rod mounted with an abutment surface for actuation by a user with a pivoted lever at the other end of said rod for canting about a piston rod associated...     

An improved door closer which prevents overly rapid closing due to an external force, such as wind pressure, being exerted on the door. A pair of oil holes are formed communicating with a first pressure chamber and a non-pressure chamber formed in the main cylinder of the closer. A slide valve is disposed...     

A mechanism which prevents a door from closing by blocking the door hinge from closing.

A new type of hydraulic door closer is disclosed. The device of the present invention utilizes spring force and hydraulic pressure, and is equipped with a straightly extending arm instead of the conventional type of the folding arms. The advantages of the device of the present invention are that variations...     

A swivel mounted armature plate for use with an electromagnetic door holder features a spherical socket connection to an adjusting screw which may be secured in any combination of depth and rotation within its operating range.

A rotary damper includes a cylindrical rotor for receiving a torque input, a housing having a shaft disposed within the cylindrical rotor and a cylindrical wall surrounding the shaft, a viscous fluid interposed between the cylindrical rotor and the housing shaft, a coil spring provided between the inner...     

A rotary damper includes a sealed cylindrical housing containing viscous oil, a driven shaft rotatably supported within the housing, and a plurality of rotors and spacers arranged alternately and disposed upon a portion of the driven shaft extending in the axial direction of the housing. The rotors are...     

A toilet lid closing device for use on toilets of the type having a vertical tank with a flushing lever, a bowl, a seat and an overlying lid pivotally mounted by a hinge pin, has a torsional coil spring received around the hinge pin which biases the lid and the seat to a closed position. A channel shaped...     

An adjustable stop which has a socket (1) of which the end surface (2) forms a stop-surface, a housing (3) fitted with holding means for securing the same to a first element (4) and a clamping rod (7) for radially expanding an inner tube portion (6) of the housing (3) so as to lockingly engage the socket...     

A wedge assembly to be secured to a vehicle door to prevent door rattling during vehicle operation. A slide element is captured by a base plate and stops are provided to prevent inadvertent disassembly.

The present invention relates to an arrangement for a door intended, in conjunction with the closing of same, to prevent injury by crushing between the door leaf (4) and the case (2). The arrangement (1) comprises a body component (5) with a plane surface (7) intended to be mounted against the door leaf...     

A hinge brake apparatus is provided for controlling the rate of either opening or closing of a door or the like. The hinge brake includes a cylinder member having a tubular-open-ended configuration and a piston member which axially slidably interfits in telescoping relation with the cylinder and forms...     

The present invention relates to an improved door latch holder designed to be mounted on the two knobs of a door and having a central portion designed to overlie a door latch. In the position described above, the door latch will be retracted into the door so that the door may be opened and closed without...     

The present invention relates to improvements in door stoppers for keeping doors open. More particularly, the invention offers door stoppers which facilitate opening/closing of the door by the attraction of a permanent magnet, prevent damage to the attracting member by causing the attracting member and...     

A furniture hinge has a hinge arm connectible to the body of a piece of furniture and a lever connectible to a closure for the furniture. The closure is movable between a closed position and an open position. A damping device is disposed between the hinge arm and the lever and includes a housing having...     

The security device of the present invention is secured to the floor of a structure adjacent the hinge side of a door to be made secure. The security device has an element which can be elevated by foot from its storage position to engage against the inner face of the door to prevent the door from being...     

The locking device may either be used with a conventional liftgate support or incorporated into the design of the liftgate support, to retain a hatchback-type door of a vehicle in an open position. The locking device of the present invention is for use with a liftgate support to retain a hatchback-type...     

A door prop device for the purpose of maintaining a hinged door in a propped-open position against the forces of spring tension, wind, gravity, or other causes, which will effectively function without damaging either the door or any adjacent structure and which will function on doors which pivot on vertical...     

A door holder that includes a holding member adapted to be secured between the door and a frame of the door. The holding member includes a lever that may be clamped in either a first released position in which the door is freed to be opened and closed or a second holding position in which the door is...     

A door security device which includes a pair of pivotably connected members with one of the members being provided with a plurality of angularly extending tapered prongs engagable with a carpet or other penetratable floor covering, and the other member including a surface which abuts the door to resist...     

A rotary damper is disclosed having a hollow casing and a power receiving shaft extending exteriorly of the casing. The power receiving shaft turns a movable vane within the casing to pressurize a working fluid. A stationary partition member including a dividing wall and a dividing vane is positioned...     

A sag-resisting door assembly for an armored vehicle. Upper and lower hinges are mounted to the door edge, but at least one of the hinges is also connected through the door edge to an armor panel within the door, rather than being connected to the panel only by the door panel or skin. Preferably a bolt...     

A cabinet lid stay is provided including a pair of arms pivotally coupled with each other for relative angular displacement at first ends of the arms and the second end of one arm is pivotally connected to a stationery cabinet portion through utilization of a damper construction while the second end...     

A door dampening assembly for dampening the swinging motion of a vehicle door includes a timing plate, a mounting bracket, and an expandable and contractible link connected to and between the timing plate and the mounting bracket. Operator access doors on construction vehicles can cause damage to the...     

To simplify the fabrication of the housing of an automatic door closing device with hydraulic damping, it is proposed to configure the housing as a tubular hollow cylinder 106 on which, externally, by means of one or more compactly superimposed covering elements 102, a bypass valve 121 is formed.

A floor-mounted doorstop comprises a tubular housing having an upper flange which is affixed to the floor, and a closed lower end. A plunger is telescopically received within the bore of the housing, compressing a coil spring which normally drives it to its deployed position; however, the plunger can...     

A door open position fixing device including a presser member adapted to abut against a vehicle door openable up to a predetermined angle defined for every vehicle of different kinds, and a driving mechanism for swingably driving the presser member to make the same press the door in an opening direction...     

A door holding device for motor vehicle doors includes a door holding rod which is swivelably attached to a structural door component, a door or a door post. The door holding rod extends with its other end through a holder housing mounted on another structural component or the like. The door holding...     

A temperature compensated fluid filled damper is provided which in a preferred embodiment is a rotary damper which includes a housing for receiving a rotor having a surface for engaging a viscous fluid sealed within the housing. The housing includes a temperature compensating member positioned adjacent...