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Class 222/394 - Fluid pressure


Subclass of Class 222 - Dispensing
Definition: Dispensers in which the material is caused to discharge
No. of patents: 284
Last issue date: 09/06/2011


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NumberTitleIssue Date
4397408Surface tension storage device with buffer-tank
The invention relates to a storage system comprising: an enclosure containing a liquid and a pressurant gas and a liquid-expelling device comprising a structure made up of rigid elements which define a grid-like interior surface forming a gas barrier and ...
08/09/1983
4384661Aerosol water-based paint compositions
This invention concerns sprayable, non-foaming emulsions of a film-forming polymer in water which are useful as aerosol paint sprays....
05/24/1983
4381066Polymeric foam caulking compositions
This invention concerns sprayable emulsions of a foamable polymer in water which are useful as aerosol caulking or insulating compositions....
04/26/1983
4373341Expandible package for dispensing containers
A sealed package for pressurizing the contents of dispensing containers. The package contains chemicals which react to develop gas pressure to expand the package when in the dispensing container. A series of sequentially rupturable pockets add further inc...
02/15/1983
4350774Polymeric foam caulking compositions
A composition suitable for preparing a stable cellular foam, aerosol containers containing the composition, and methods of using the foamed composition to caulk and insulate, where the composition includes an emulsion of one or more foamable polymers and ...
09/21/1982
4349135Aerosol container valve mounting
A nylon or similar material ring insensitive to a product stored in a container is disposed imperviously between a valve and the inner wall of the container so as to protect the sealing gasket against chemical reactions with the stored product....
09/14/1982
4340054Dispenser for delivering fluids and solids
An osmotically driven fluid dispenser is disclosed comprising a flexible container having a port for filling and emptying same, a layer of an osmotically effective solute on the container, and a shape retaining microporous housing having a fluid rate cont...
07/20/1982
4340160Overflow system having pneumatic pressure control
The invention covers a method as well as a device for controlling the discharge of molten material from a melter or an intermediate vessel containing such material, in which a primary outflow from the melter or intermediate vessel is fed to an overflow sy...
07/20/1982
4322020Invertible pump sprayer
An invertible pump sprayer is disclosed which enables a spray to be produced even with liquid material having viscosities as high as 100 cps. and regardless of the direction in which the spray is directed. The pump sprayer comprises a flexible container f...
03/30/1982
4281775Can tapping valve apparatus
Apparatus for controllably transferring fluid from a pierceable pressurized container includes a valve body, a stem member which is threadably connected to the valve body at one end and a fluid-conducting hose at the other end, and an elastomeric valve ba...
08/04/1981
4275774Method and an apparatus for transferring a reference liquid from an ampoule to an electrochemical measuring instrument
Ampoule-packed reference liquids for electrochemical measuring instruments, especially blood measuring instruments, are transferred from the ampoule to the measuring instrument pneumatically by providing a discharge conduit from the liquid in the ampoule,...
06/30/1981
4239407Hard to reach places spray can
An aerosol pressure can containing liquid wax for furniture, the can including interchangeable nozzles, one of which is cone shaped, another sprays sideward, and another sprays endways; and the can includes a depressible button its side for opening a disp...
12/16/1980
4232802Apparatus for pulsewise dispensation of very small amounts of liquid, particularly H2 O2
In an apparatus for the pulsewise dispensing of very small amounts of liquid controlled with a measuring instrument comprising an ejecting device for the pulsewise ejection of a desired amount of liquid, a pump is provided for supplying liquid to the vess...
11/11/1980
4231494Syringe adaptor assembly
A connector is provided for attachment of a syringe to a dispenser adapted to provide measured quantities of pressured gas to the syringe to displace the contents of the syringe in measured drops. The connector includes a flexible conduit attached at one ...
11/04/1980
4196826Dispensing container
Dispensing container comprises a chamber for holding a fluid to be dispensed in the form of a long, serpentine duct of small cross section....
04/08/1980
4182496Actuator button for fluid dispenser
An actuator button assembly for a finger-operated fluid dispenser including a compression chamber located in the actuator button, a piston slidably located in the compression chamber, an insert having an orifice therein fitted adjacent to the compression ...
01/08/1980
4178974Flow controller
Fluid is forced from a reservoir into an evacuated chamber by forcing a plunger into the reservoir. When it is desired accurately to stop the flow of the fluid, the plunger is withdrawn and concurrently the pressure in the reservoir is reduced to that of ...
12/18/1979
4168021Constant flow aerosol container
A substantially constant flow aerosol container having a dispensing valve provided in its inlet with a tube having a flow passage between 0.1 mm and 0.5 mm, and of a length sufficient so that flow occurs at a REYNOLDS number less than 3000. The propellant...
09/18/1979
4156495Method for producing drops or portions of liquid and viscous materials and for producing pellets therefrom
A method for pelletizing liquid and viscous products. A body of the liquid or viscous material is enclosed within a chamber having discharge orifices or nozzles at the bottom of the body of liquid. There is a body of gas above the liquid which is subjecte...
05/29/1979
4154378Metering valve for pressurized container
A metering arrangement for dispensing a predetermined quantity of product each time the dispensing valve of a pressurized container is operated. A flexible wall feed tube within the container is connected to the valve inlet, the tube having a restriction ...
05/15/1979
4150770Adhesive-applying tool
A tool is provided for applying adhesive material to a surface. The tool utilizes a cartridge of heat-softenable, thermoplastic material which is positioned in a chamber of the tool. Air under pressure at the rear end of the chamber is applied directly to...
04/24/1979
4133451Container liner
A liner constructed of pliable material and which is suitable for use with a container of the type which may be tipped in order to discharge a load of particulate material, the liner comprising at least one aperture through which it may be loaded with par...
01/09/1979
4129419Disposable laboratory device for transfer of fluids to a centrifugal analyzer head
A disposable laboratory device for transfer of fluids, such as biological fluids or reagents, to specific wells of a centrifugal analyzer head. The device itself is a disposable, multi-compartmental system within an arcuately extending enclosure. In the p...
12/12/1978
4124076Fire extinguisher
A rechargeable dispensing apparatus, particularly suitable for use as a fire extinguisher, includes a generally spherical, enclosed dispensing container adapted to receive a liquid extinguishant therein, and has a flexible pickup tube shiftably confined t...
11/07/1978
4111339Mounting cup for aerosol valves
A mounting cup for aerosol valves comprising a cupola member having an annular base, means provided said cupola for receiving an aerosol valve, a cylindrical shoulder integral at its bottom edge with the base of said cupola member and concentric with the ...
09/05/1978
4109820Self-threading container closure and method thereof
A self-threading container closure for a spiral wound tube useful as a container for fluids under pressure. The closure insert includes side threads in conjunction with a spherical arch and support legs. The threads permit the insert to be screwed into th...
08/29/1978
4086060Disposable manipulative laboratory device for transferring biological fluids
A manipulative laboratory device for transferring biological fluid from one or more primary containers to an associated secondary set of containers through a disposable closed compartment system. The compartment system allows for greatly simplified decant...
04/25/1978
4060180Tool for applying adhesive material
A tool is provided for applying adhesive material to a surface. The tool utilizes a cartridge of heat-softenable, thermoplastic material which is positioned in a chamber of the tool. Air under pressure is applied directly to a rear portion of the cartridg...
11/29/1977
4058237Portable self-protective device
The present invention relates to a device for protecting a person from attack from an assailant wherein the device is worn on the person in such manner that it is always available for instant operation for defense without the necessity reaching into a poc...
11/15/1977
4056500Aerosol-dispensed latex paint compositions
A latex aerosol paint composition having a total solids content of less than 40%, a viscosity of from 10 to 60 seconds measured on the No. 4 Ford cup, a pigment content of from 2 to 15%, is dispensed from an aerosol container having a mechanical break-up ...
11/01/1977
4045860Method of assembling an aerosol dispenser
An aerosol dispenser including an outer casing, a product containing bag within said casing and sealingly secured thereto at a point of interconnection between the casing and a cap carrying a dispensing valve. Pressurized propellant is disposed between th...
09/06/1977
4036673Method for installing surface covering or the like
A method for installing a sheet of surface covering material on a substrate surface comprising depositing a quantity of a foamed adhesive to the substrate surface, laying the sheet on the adhesive, applying pressure to the sheet so as to spread the adhesi...
07/19/1977
4019687Aerosol valve and sprayhead
An aerosol spray valve of the type which utilizes a reciprocable plunger moving within a valve housing that is in turn mounted to a cover member. The cover member is adapted to be crimped to a canister and has a dip tube extending from the interior of the...
04/26/1977
4007739Fluid-operated hypodermic syringe
A fluid-operated hypodermic syringe for injection of medicinal fluids into livestock, which is adapted to successively and automatically pump out of a container a predetermined quantity of medicinal fluid and to inject it into one animal each. Means are p...
02/15/1977
4001391Means for depositing aerosol sprays in buttery form
Disclosed herein is an aerosol package and method using this package for dispensing substances in spray form and depositing them on a desired limited surface area in the form of a buttery, liquescent solid. The aerosol packaging contains an anhydrous, ole...
01/04/1977
3999689Device for simultaneously delivering equal amounts of liquid
A device for transmitting equal amounts of liquid simultaneously to a plurality of locations. An airtight enclosure has a bottom wall formed with a plurality of inwardly opening wells of equal volumes all having bottom openings through which liquid can fl...
12/28/1976
3998364Dispensing valve for bottled carbonated beverages
A dispensing valve for carbonated beverage bottles having means for connection of the valve body to the bottle neck in place of its closure cap, and comprising a flexible tube extending therethrough and arranged to pass down into the bottom of the bottle ...
12/21/1976
3991915Aerosol container
An aerosol container having a body formed of substantially circular cross-section at the upper end and gradually tapered intermediate the ends thereof and merging with a substantially V-shaped trough at the lower end....
11/16/1976
3977560Pressurized fluid container with built in filter
There is disclosed a pressurized Freon cylinder having a cap including a threaded nipple with a puncturable end wall. Positioned within the nipple, by screwing into its internal threads, is a porous plastic filter in the path of the fluid as it leaves the...
08/31/1976
3976227Liquid chemical dispensing unit
A liquid chemical storage and dispensing unit is disclosed in which a mobile cart supports upper and lower groups of pressure sealable storage tanks containing liquid chemicals. Conduits couple a pressure distributing gas manifold to the upper tanks. Tank...
08/24/1976
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