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4768714 Portable sprayer with leak control and agitator  
A pressure vessel for a backpack agricultural sprayer is mounted within a container of the sprayer and connected to the sprayer pump so that liquid from the container is forced under pressure into...
4747523 Manually actuated dispensing pump  
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...
4728009 Spray pump with container connector  
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....
4705191 Mixing and spraying device  
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...
4691847 Pasty product dispenser having combination actuator and outlet valve  
The actuating lever of the dispenser has a rigid valve flap integral therewith which covers the spout outlet to close the same when the actuating lever is in its normal, undepressed position but...
4690308 Pail mount pump with integral cover  
A pail mounted pump system having dual reciprocal pumps and pail cover in an integral design. The pump and pail cover are constructed in a single unit with a built-in intake siphon tubes. This...
4685592 Pumping system with control valve  
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...
4678122 Hand operated liquid atomizer  
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...
4676409 Grease gun and method for making such a gun  
A grease gun has a grease container with a low pressure piston, and a high ressure part with a high pressure piston in a passage. The high pressure part is located on a cap screwed to the grease...
4671432 Pump dispenser for fluent products featuring a reciprocable plunger and diaphragm seal  
A pump dispenser for fluent products is disclosed as inluding a container for housing the fluent product, dispensing outlet means on the container, a follower piston closing the lower end of the...
4669664 Hand manipulatable sprayer  
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...
4667856 Dispenser for attachment to liquid containers  
A dispenser for attachment to liquid containers is disclosed which allows a contained liquid to be dispensed by pumping rather than pouring from the container, having a top cylinder containing a...
4664298 Dual mode grease gun  
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...
4657161 A Dispensing container for cream-like fluids  
A dispensing container for cream-like fluids includes a cylindrical body having upper and lower closures. The lower closure is a piston which moves toward the upper closure as the fluid is...
4655123 Coffee maker improvement for measured charges from bottled water  
A system is disclosed for transferring a predetermined charge of water between a bottled water container and a coffee maker. The system comprises a pump and a timer which operates the pump for a...
4651904 Dispenser for pasty compositions, particularly toothpaste dispenser  
A dispenser for pasty compositions, particularly a toothpaste dispenser, with pump-like actuation for the portioned delivery of the content from a nozzle discharge channel, in which connection the...
4624413 Trigger type sprayer  
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...
4618076 Dual dispensing bottle  
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...
4614481 Pump with replaceable cartridge  
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...
4614284 Co-dispenser  
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...
4606480 Liquid sprayer  
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...
4596344 Manually actuated dispenser  
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...
4593607 Spring-piston combination for manually operated pump  
A manually operated actuator for a pump employs a vertical hollow chamber. A piston is vertically slidable in the chamber between a bottom position at which no pumping action can take place and a...
4591077 Continuous discharge dispenser  
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...
4561571 Washing liquid supplier  
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...
4560095 Lever operated lubricator  
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...
4557669 Pumping apparatus  
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...
4545735 Diaphragm pump having a valve sheet with inlet and outlet flaps and having antisiphoning capability during pump shutdown  
The pump has a pumping chamber with a deflectable diaphragm member and fluid inlet and outlet passages. A deflectable valve flap is disposed across the fluid inlet passage and another flexible...
4527741 Trigger pump sprayer  
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...
4526294 Dispenser for dispensing liquids in controlled quantities from a bottle  
A dispenser for dispensing controlled quantities of liquid from a bottle includes a piston, which is movable in a cylinder and serves to suck and discharge an adjustable quantity of liquid. The...
4519527 Hand powered liquid atomizer  
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...
4516700 Hot melt anti-surge dispensing system  
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...
4515298 Dispenser for paste-like products with manually actuable piston including insert device  
This relates to a dispenser for paste-like products wherein there is a pump chamber disposed between a container for the product and a dispensing opening and the pump chamber and an adjacent duct...
4506805 Dispenser device for liquids  
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...
4489861 Manual liquid dispensing device  
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...
4489890 Hand-operated pump  
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...
4485943 Dispenser for liquids or pasty products  
A dispenser for a liquid or pasty product comprises a container containing the respective product and having its upper end closed by a partition having at least one opening therethrough. The...
4456152 Measuring and dispensing apparatus  
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...
4456153 Trigger attachment for pumps  
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...
4454965 Child-resistant trigger pump dispenser  
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...
4434917 Trigger-actuated atomizer  
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...
4403926 Barrel pump  
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...
4399932 Volumetric metering valve  
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...
4371097 Liquid dispensing pump  
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...
4365751 Trigger type liquid injector  
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...
4364718 Disposable pump for dispensing small metered amounts of liquid from a container and a control unit for operating said pump  
A disposable pump of plastics material for dispensing small metered amounts of liquid from a single opening container to which it has been attached and which can be closed thereby, comprises a one...
4361256 Dispenser having attached and sealed closure cap  
A dispenser includes a cylindrical connecting portion, an internally threaded closure cap permanently attached to the connecting portion, and a container for fluid to be dispensed having an...
4355739 Liquid storage container  
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...
4349131 Apparatus for dosing and forming soap foam  
An apparatus for forming lather or soap foam for washing and/or shaving purposes comprises an actuation lever which simultaneously serves to drive a piston, a liquid soap-dosing pump and a membrane...
4346821 Child-resistant closures for container mounted spray dispensers  
A child-resistant safety closure is provided for closing the outlet of a hand-operated fluid product sprayer dispenser used on a container to prevent leaks from the container during periods of...