Container-mounted pump

A liquid dispensing burette adapted to be mounted on the top of a reagent bottle or container and having inlet and outlet conduits provided with ball check valves in communication with an upstanding burette barrel containing a plunger. The barrel has a volumetric scale and a shield member is secured...     

A dispensing pump of the type in which the outlet valve will open and will remain open only when the pumping pressure is maintained above a predetermined minimum. The pump cylinder in which the pump piston reciprocates, constitutes a unitary part of the outlet valve and also communicates freely with...     

A liquid dispensing device comprising a cap structure mounted on a liquid container, a cylinder extending vertically upward from the cap structure, a manually operable plunger slidable within the cylinder, an adjustment assembly for controlling the stroke of the plunger, and a discharge assembly and...     

A grease gun of the type wherein a dispensing head assembly having a lever-operated piston pump is screwed onto the head end of a grease-containing cylinder and wherein a spring-biased plunger and rod assembly in said cylinder is operative to feed grease from the cylinder to the pump, said dispensing...     

A dispensing device includes a manually operable loading member carried by and accessible exteriorly of a container having a material to be dispensed, with the loading member connected through a gear arrangement with a material dispensing piston reciprocable in a dispensing chamber which is in communication...     

A trigger type sprayer which comprises a sprayer body whose inner lateral walls are provided with a pair of mutually facing engagement grooves, and wherein a trigger of the sprayer has a notch cut out in the upper end portion of the front wall and a pair of lugs formed on the outside of the upper end...     

A rechargeable, battery-powered sprayer for personal products using a replaceable product-filled cartridge. The finger-operated control simultaneously opens the valve, allowing flow of material, and actuates the motor for pumping the material.

Dispensing container comprises a chamber for holding a fluid to be dispensed in the form of a long, serpentine duct of small cross section.

A dispensing pump is provided with a non-throttling peripheral valve having a circular sealing edge with a diameter of greater than 3/4 inch and a thickness of less than 0.020 inch, and the valve is made of low density plastic material. The result is a pump which will operate at a very low, predetermined...     

Disclosed herein is a hand operated sprayer for liquids, in which the spraying unit is provided with a small bore which is factory sealed at the assembly by a special fitting properly located, to be eliminated by the pumping lever when first operated, said bore communicating with the inner space of the...     

A manually operatable dosage pump comprising a cylinder, a piston movable therein between two end positions, and inlet and outlet passages communicating with the cylinder space and each containing a one-way valve or check valve. The piston is adapted to interrupt communication between said inlet and...     

A manufacture of fluid handling devices having a variety of different surface contours or appearances features a universal fluid handling component retaining body and a shroud for enclosing the universal body, the shroud being a selected one of a variety of shrouds that are fabricated separately from...     

A hand-held, battery-powered dispenser for pumpable materials such as lubricants and, in particular, lubricating grease, comprising a handle, a head, a barrel secured to the head holding a supply of lubricant and a plunger slideable within a bore in the head. The bore intersects an inlet port in communication...     

A liquid dispensing device including a vertically mounted cylinder, a plunger slidably disposed in the cylinder, a cylindrical space having the inner diameter slightly larger than that of the cylinder being disposed contiguous to the lower end of the cylinder and coaxially therewith to receive the lower...     

Chemical injector comprises injector structure for injecting a solution from a reservoir into a flowing stream, usually water. The reservoir is at atmospheric pressure, and a chemical solution is withdrawn therefrom by Venturi action, with flow rate being controlled by passage size. Alternatively, an...     

A material moving apparatus, and in particular, a material moving pump such as a manure pump. The pump includes a pumping chamber defined by interior chamber walls, and a piston or ram mounted for reciprocation in the chamber. The ram has side walls generally in conformance with the shape formed by the...     

A child resistant closure for a container having a pump or other dispensing device connected to the container including a cap having a hole in the top for receipt of the pump or dispensing device and threads on the inside walls for engaging threads located on the container, the cap having a series of...     

This invention is directed to a liquid storage container. More particularly, this invention is directed to a liquid storage container that can be connected or attached to a spray pump which comprises two separate chambers to hold liquid components, each chamber having a take-up tube which leads to a...     

Herein disclosed is a trigger type liquid injector which includes a body mounted to stand on a liquid container, an injection cylinder extending in a horizontal direction from the upper portion of the body, and pumping means arranged at such an interior angle as is defined by the body and the injection...     

A liquid dispensing pump includes a one-piece piston capable of not only effecting a pumping operation but also an outlet valve opening and closing function upon limited relative axial movement. In one embodiment, the piston reciprocates and forms a valve seat for a container vent opening extending through...     

A double shoe volumetric metering valve comprising an elongated hollow substantially cylindrical valve housing having a feed port and a supply port formed in one end portion thereof and a discharge port formed in the opposite end portion thereof, a rotatable shaft having a first and second valve shoe...     

A barrel pump having a handle attached to a freely rotatable ring-like member carried on the head portion of the pump whereby the handle can be freely swiveled in relation to the head portion to enable the handle to be positioned at substantially any angle with relation to the spout of the pump.

A trigger-actuated atomizer pump has a first engagement member held in fitting engagement with a second engagement member on a flattened liquid container for orienting the atomizer pump securely against rotation relative to the flattened liquid container with an atomizer trigger directed in registration...     

A child resistant trigger pump dispenser having an elongated, transversely oriented body member with the pump outlet at one end thereof and a vertically extending lower end section for receiving fluid from a container. The lower end section of the pump is equipped with a rigidly attached closure member...     

A hand-held measuring and dispensing device for liquids employing a novel adjustable cam mounted inside of the device which limits the movement of a plunger to control the amount of liquid withdrawn from a reservoir on the device upon one movement of the plunger and discharges a like measured amount...     

A trigger attachment, for a finger operated pump having an axially outwardly projecting actuating and dispensing stem having therein an axial bore through which material is dispensed upon axial inward movement of the stem, has a body attached to the pump body and a generally vertically extending portion...     

A hand-operated pump for dispensing a fluid from a container includes a body containing a pumping chamber having an inlet and an outlet conduit. A piston is reciprocably mounted in the pumping chamber, the piston having a convexly contoured outer end surface. A trigger pivotally mounted and locked to...     

This invention relates to a manual liquid dispensing device for spraying liquid by squeezing the trigger thereof. An adapter is inserted into a cylinder bore forming a pressurizing chamber. A piston is slidably mounted within the adapter. This adapter has an inlet communicating with the intake portion...     

A hand-operated pump for dispensing a fluid from a container includes a body containing a pumping chamber having an inlet and an outlet. A piston is reciprocably mounted in the pumping chamber, the piston having a convexly contoured outer end surface. A trigger pivotally mounted to the body has a plurality...     

The spraying device for liquids comprises a piston pump which has a suction orifice intended to be immersed in the liquid and a piston rod slidably mounted opposite the suction orifice. This piston rod encloses an outward orifice for the liquid. The external case of the device comprises a delivery tube...     

The invention pertains to a system for dispensing highly viscous materials, such as hot melt adhesives, wherein flow surges are eliminated. The material is pumped by an expansible chamber motor operated by compressed air and flow through a dispensing nozzle is controlled by a valve. Air pressure regulators...     

A hand powered liquid atomizer has a pistol-like housing with a union nut supported at the free, lower end of a handle part thereof so that the nut may be screwed onto a liquid vessel. The nut is supported on the housing by a holding part. The holding part is made of an elastic material and is stepped....     

The trigger sprayer comprises a body having an upper horizontally extending portion and a lower generally vertically extending portion. The body has a passageway therein extending from one end of the upper portion to the bottom of the lower portion. A cylindrical hollow and a cylindrical cavity extend...     

A pumping apparatus for pumping heavy viscous chemicals and the like. The apparatus has a pump means having means for attachment to a container of the viscous chemicals and the like, and has driving means including a motor and means for detachably connecting the driving means to the pump means so that...     

A practically all plastic lever operated grease gun with a flexible plastic link integrally molded with a plastic head, pivotally connecting the lever to the head. A lever reciprocated dispensing piston, slidably mounted in a transverse bore in the head, actually forms the bore in the head as a core...     

A washing liquid supplier includes a container filled with washing liquid, a pumping chamber formed in a cylinder under the container and defined by a suction valve formed on the lower opening of the container, a discharge valve formed on the lower portion of the pumping chamber and a nipple button,...     

A dual chamber continuous discharge dispenser includes relatively movable pump piston and pump cylinder during compression and the compression strokes and together defining a variable volume pump chamber which comprises part of an encircling accumulator element which is displaced during the compression...     

A dispenser of the pressure accumulated type includes a unitary pump plunger actuated for reciprocation within a variable volume pump chamber defined by an accumulator which is displaced upon an accumulation of pressure for opening the discharge as a discharge valve thereon becomes unseated, the compression...     

A liquid sprayer comprising a cylinder defining a pump chamber in which there is housed a piston capable of sliding between positions of minimum and maximum insertion respectively. The piston is hand operated by a trigger and is urged to the minimum insertion position by a spring and in the minimum insertion...     

A container having a trigger actuated pump is provided with a sealed spout designed to provide a co-dispensing opening designed to dispense product in larger dosage amounts independently of and as a bypass of the pump. The spout extends upwardly from a pummel at the container top and through an opening...     

A pump of the diaphragm type. The pump has a replaceable unitary cartridge which fits into a cavity of the pump casing. The casing is in two parts, an upper casing and a lower casing, which are held together by detachable means for replacing the cartridge.

A dual dispensing bottle includes two upwardly extending necks having a trigger sprayer attached to one neck and a frangible orifice creating section integrally formed in the other neck. The frangible section is easily removed by twisting and doubles as a plug for the created orifice. The frangible twist-off...     

A liquid dispensing pump in the form of a trigger sprayer includes a thimble-shaped valving element containing inlet and outlet valves, and located within a cylindrical portion of the pump body. In one embodiment, a pressure accumulation chamber is defined between the pump body and the valving element,...     

The trigger actuated pump sprayer has a nozzle cap which surrounds a unitary element and forms a spin chamber therewith, the element having an integrally connected spring and biased discharge check valve and including a plurality of supply channels, the nozzle cap being rotatable without axial displacement...     

A hand lever operated grease gun that has both high pressure and high volume modes by changing the mechanical advantage of the lever acting on a dispensing piston. A spring biased pivotal connection between the lever and a forwardly mounted supporting link is shiftable between two positions by depression...     

The hand manipulatable sprayer (10) is connectable to a container (26) and includes a body (12) having a pump assembly (120) and a check valve assembly (90). The check valve assembly (90) includes at least one conically-shaped skirt valve member (100,112). Also the body (12) can have a cavity (68) adapted...     

The device comprises a body containing a pump adapted for pumping liquid from a container to an atomizer nozzle via a fluid passage conduit and a tube. An auxiliary conduit communicates the interior of the container to an outwardly open hole. A first valve is interposed between the tube and fluid passage...     

A pumping system for containing and dispensing liquids, such as poisonous or hazardous chemicals and the like. The system has a spring-biased, manually-openable by pass valve incorporated therein which is selectively positionable in various positions without the user coming in contact with the poisonous...     

A dispenser body molded of plastic material includes an upper body portion on which a trigger is swingably pivoted and a vertically extending lower tubular portion. A piston has an L shape and includes an upper folded horizontal portion carried by spaced vertical wall portions of the upper body portion....     

A re-usable mixing and spraying device in which the fill opening and the hand pump used to discharge the spray solution are arranged at different heights, and a concentrate and a diluent may be mixed together in the device which is tightly sealed off from the outside, the concentrate being enclosed in...     

A spray pump having a connecting portion connectable to a container and whose housing is provided with co-axially step bores defining a venting chamber for venting the container and a pump chamber. The pump piston has oppositely conically divergent lips engaging the walls of the respective chambers and...     

A dispenser pump has pump chamber (34) whose volume is variable to draw up or discharge material, by the axial movement of a cup (25) on a stationary hollow stem (12). The seal (16) between them slides on an inner wall of the cup. A collector (30) at the lower end of the cup causes any material leaked...     

A manually actuated dispensing pump having a pump body extending transversely above a closure cap adapted for mounting the body at the upper end of a container, has an outwardly open pump cylinder for the reception of a reciprocable piston having spaced piston seals. To facilitate pump priming, the inboard...     

An apparatus including dispensers connected to a hopper enable discrete portions of filler material to be introduced into individual containers as they pass through a food canning operation. The dispensers are connected to a hopper and are operable to dispense discrete amounts of filler material that...     

A trigger type sprayer which comprises a sprayer body whose inner lateral walls are provided with a pair of mutually facing engagement grooves, and wherein a trigger of the sprayer has a notch cut out in the upper end portion of the front wall and a pair of lugs formed on the outside of the upper end...     

A trigger type liquid dispenser having a nozzle unit including a nozzle at its front end, a pump operated by a trigger and a container mount, in which the pump is operated by the trigger and has an annular cylinder including concentric outer and inner cylindrical members of double wall shape projecting...     

A dispensing pump for dispensing product from a container serves as a container closure. The pump has a cylinder having an inner shell open at its rear end and closed at a forward end and an outer shell surrounding the inner shell and defining a cavity therebetween. A reciprocally mounted piston is in...     

A dispensing system including a tank and a constant displacement pump mounted on the tank for dispensing liquid from the tank. Liquid is withdrawn from the tank via an adapter mounted in the tank bung and having two concentric tubular members, the inner of which receives a tube connected to the pump...     

This relates to a container and pump unit where the container is formed with an integral liquid product supply tube in lieu of the usual dip tube carried by the pump unit and wherein there is a special connector arrangement for connecting a conventional type of pump unit, but modified, to such container....     

A dispenser pump comprises a pump chamber having a flexible wall for altering the volume of the chamber. The flexible wall is a polygonal pyramid, preferably five-sided, with facets interupted by respective cylindrical surface portions inclined to the facet so as to induce bending thereof when the wall...     

A dispenser which includes an elastic reservoir for sustaining pressure on material to be dispensed from the reservoir includes a rotatable actuator for actuating a piston for charging the reservoir. The charging piston is integral with the actuator, and the chamber or cylinder for the piston, as well...     

A two-chamber viscous product dispenser has an internal valve element which includes integral inlet and outlet check valves for the valving of product into the pump chamber and from the pump chamber through a stationary spout. The outlet valve may be in the form of a flap valve having resilient webs...     

Anti-spill apparatus including a liquid recovery system, for use with a liquid pumping system, which recovers and returns to a liquid container, any liquid which is inadvertently emitted by the liquid pumping system. The apparatus contemplates a pump, having a feeder hose received in a liquid containing...     

A dispenser for the delivery of dosed quantities of a pasty substance comprises a receptacle having a push button mounted on the receptacle for movement upwardly and downwardly adjacent an end thereof. A rod extends through the receptacle and is connected at its inner end to a follower plunger. A substance...     

A two-chamber viscous product dispenser which includes a stationary, transversely offset, longitudinally extending discharge spout. A depressible discharge pump actuator is mounted on the container and has extended and retracted positions. A spring biased cover having a cap overlies the discharge opening...     

A pump chamber dispenser for toothpaste or other viscous or pasty product comprises a pump member (54) moulded form elastomeric material and having a domed central portion (56) and a bifurcated peripheral portion providing inner and outer skirts arranged to lie against respective surfaces of a projection...     

A viscous fluid dispenser having a significant decrease in the number of parts constituting the dispenser and thus having a simplified structure which can be easily assembled and which can function satisfactorily is provided. A first embodiment of the dispenser includes only five parts: a cylindrical...     

The snap-in trigger for mounting in a trigger sprayer housing comprises a trigger which includes flexible members carrying pivotal mounting elements which mate with corresponding elements in a base, e.g., the sprayer housing. The flexible members are flexed towards each other during attachment of the...     

A combined sprayer container and refill container for containing a liquid concentrate for later dilution and which containers nest and interlock. A sprayer container including a sprayer head for spraying liquid contained in the sprayer container. The sprayer container also including at least one level...     

This invention relates to an apparatus for containing liquids and for delivering such liquids both by pouring and by spraying. The apparatus has first and second containers defining respective first and second volumes for containing liquid, a closure for the first container which defines a pouring opening...     

A trigger actuated dispenser pump for dispensing product from a container, in which a multi-function piston member has a primary piston reciprocable in a pump chamber and a secondary piston reciprocable in an outlet chamber. The primary piston draws product from the container, pressurizes it and pumps...     

A fluid dispenser having a fluid storage container and a plunger carried in the container, with the plunger being manually pushable inward for dispensing fluid from the container. The container includes a valve cylinder mounted in the container and having an inner opening and an interior passage for...     

A valve for pumping fluid includes a valve body and a valve chamber in the valve body. The valve body has a first end with an entrance passage therethrough. The entrance passage communicates with the chamber to provide a passage for the flow of fluid through the container to the valve chamber. A plunger...     

A dual function trigger sprayer in which a pump housing is formed with fastening means thereon to secure the housing to a shroud, and has structure at opposite ends defining an inlet chamber and an outlet chamber, respectively. A double ended piston is reciprocable in the housing to effect dispensing...     

An insert adapter is provided for use with a grease gun having a dispensing barrel, a pump housing, and a grease supply casing of the type that is either packed with grease in bulk or receives an open ended grease cartridge. The insert adapter adapts the grease gun to receive a bellows type grease cartridge...     

A positive displacement shuttle pump having a cylinder with axially displaced and mutually isolated inlet and outlet portions; a shuttle piston having a reservoir for accepting pressurized feed from the inlet port in the feed cycle and for dispensing feed to the outlet port in the dispensing cycle; a...     

A dispensing container for a viscous material such as a pasty product capable of readily and smoothly carrying out the insertion of a piston into a container body while ensuring the sealing between the piston and the container body. The dispensing container includes a gap defining structure provided...     

A volume measurement and dosage device possesses a cylinder- piston- and valve-system (4). With this system, liquid can be drawn up and/or delivered in defined quantities. At least two channels (33, 36, 38) are provided in the valve-system, which can be connected with at least one opening (32) in the...     

A child-resistant element in the form of an overcap surrounds a rectangular-shaped nozzle at the nozzle end of a manually actuated liquid dispenser, the nozzle being mounted for rotation between discharge open and closed positions. The overcap has an opening in its end wall and is mounted on the nozzle...     

A valve for pumping a viscous fluid from a holding container includes a valve body having a fluid chamber, and a piston displaceable in the fluid chamber for pumping fluid from the fluid chamber through an outlet openings. The piston is attached to the end of a shaft which extends out of the valve. A...     

The snap-in trigger (30) for mounting in a trigger sprayer housing (25) comprises a trigger (30) which includes flexible members (80,85) carrying pivotal mounting elements (100,105) which mate with corresponding elements (110,115) in a base, e.g., the sprayer housing (25). The flexible members (80,85)...     

This invention is a small hand piston type pump design to pump small quanity of flammable liquids safely from a drum. The pump has a grounding clip, and a bonding clip attached and a metal bung adapter to ensure that static build up during the pumping process is adequately grounded from not only the...     

The present invention relates to a liquid dispensing device for the downward application of a spray. The device generally comprises a liquid storage bottle defining a top surface and a plurality of side surfaces. Fluidly connected to the top surface of the storage bottle is a spray applicator defining...     

The trigger operated fluid dispensing device is adapted to be mounted to a container. The device comprises a body having a top wall portion and front end portion. A nozzle assembly is provided at the front of the body and comprises a nose bushing at the front end of the body and a nozzle cap rotatably...     

A mechanically pressurized system for dispensing a product, including a cap that houses a piston, an actuator attached to the cap so as to form a dispensing head assembly, and an expandable reservoir that is mechanically charged by the piston and dispensing head to hold a product for discharge through...     

An eye-bathing device comprises an eye-cup (14) adapted to receive the eye being bathed, and a pump (11) for delivering an eye bathing solution to the eye-cup through a spray nozzle (13), the eye-cup (14) having an inlet opening (35) aligned with the spray nozzle. The pump (11) is hand-operated, and...     

This relates to the provision of a container having as an integral part thereof a separate pickup tube so that the neck finish of the container has the usual mouth together with a pickup tube mouth. A conventional spray pump has the vent and pickup passage portion thereof replaced by a replacement assembly...     

A dispenser package for viscous products comprising a container, a hanger and pouch assembly of plastic material suspended in the container and a head including a pumping mechanism mounted on the container. The head includes a chamber with a first one way valve adjacent an opening in the hanger and pouch...     

A dual mode pistol grip grease gun that operates in either the volume mode or the pressure mode. The grease gun comprises a cylinder head, which has a handle fixed to it. Attached to the handle via a shiftable link is a lever, which has a U-shaped slot disposed at one end. The shiftable link is disposed...     

A trigger operated dispensing device for the discharge of fluids, particularly in a spray. The device comprises a housing including a trigger, which actuates a flexible pump. The flexible pump has an inlet accepting the fluid and an outlet end through which the fluid passes going to the discharge. The...     

An injection syringe useful in the medical arts for injecting high viscosity fluids or pastes, particularly in endoscopic applications. The syringe includes a force multiplying mechanism to infuse viscous medicaments such as collagen or polytetrafluoroethylene paste, with a controlled metering action....     

The trigger operated pumping mechanism for a fluid dispensing device comprises a body and the pumping mechanism comprises a cylinder in the body of the dispensing device, a piston received in the cylinder and having a piston rod extending outwardly therefrom to an outer end and a trigger movably mounted...     

A housing for use with a fluid dispensing apparatus adapted for attachment to a fluid container using a snap-action coupler. The housing contains a lower portion configured to extend generally downward over the fluid dispensing apparatus and over at least an upper portion of the fluid container when...     

A dispenser assembly for dispensing liquid from a container has a dispenser operable remotely from the container by way of a tube communicating the dispenser and the liquid within the container. The dispenser assembly has a hand-held dispenser and a tube connected to the dispenser for extension into...     

A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost...     

A dispenser pump has a base incorporating an intake tube, an axially-upright cylindrical pump body fixed on top of the base by a screw-threaded engagement, and a cap plunger having a piston which sweeps the interior of the body. A discharge spout opens from a discharge opening adjacent the base. Both...     

A hand lever-actuated spray pump (1) having a pump chamber (4) which has an inlet (7) and an outlet valve (8), furthermore having a (sprung) pump piston (6) which interacts with a pump cylinder (5), a lever-like actuating handle (2) and an antechamber (20) which is connected to the pump cylinder (5),...     

A precompression pump sprayer having a stationary discharge is of compact construction while having separate springs for the plunger and valve member as well as pump priming and container venting features.

A precompression pump sprayer has a stationary discharge and a reciprocable pump cylinder which squeezes the air out of the pump chamber to facilitate priming as the cylinder is plunged relative to a piston shifted by the plunger to open the discharge during priming. Once primed the piston is shifted...     

A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. A pump element is positioned generally horizontally such that pulling the trigger contracts or retracts the element and releasing the trigger permits the element to return to an extended position. An elastomeric...