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Class 222/335 - Actuated by pressure of or suction on material to be dispensed


Subclass of Class 222 - Dispensing
Definition: Dispensers in which there is a discharge assistant which
No. of patents: 49
Last issue date: 06/12/2007


1    
NumberTitleIssue Date
7229594Device for dispensing accurately-controlled small doses of liquid
The invention provides a device for dispensing accurately-controlled small quantities of at least one liquid, comprising a liquid supply (L); a gas supply (G), arranged to selectively supply a gas pressure; and a capillary duct (20) adapted to be filled with ...
06/12/2007
6925867Fluid meter, in particular water meter with volumetric measurement chamber
A fluid meter, in particular a water meter, comprises a tank having a bottom and into which is inserted through an opening opposite the bottom in an insertion direction parallel to its axis of symmetry a measurement chamber having at least one lateral orifice connec...
08/09/2005
6834777Closed loop control over delivery of liquid material to semiconductor processing tool
Liquid material is precisely dispensed to a semiconductor processing tool utilizing closed loop control. In one embodiment, CMP slurry material of known density is supplied from a reservoir/mixing vessel to a dispense module. The dispense module also receives a flow...
12/28/2004
6789702System for dispensing multi-component products
A pressurized dispensing system (10) for dispensing a multi-component product, comprises an outer body (11) defining a first chamber (8) constructed to contain a first component of said product; an inner container (20), disposed within sa...
09/14/2004
6719175Draft system for beverages
A system for dispensing beverages, in particular for dispensing mixed drinks can be configured to be implemented in conjunction with existing draft systems, for example, draft systems for dispensing beer and the like. Pumps used to dispense the beverages can be powe...
04/13/2004
6561381Closed loop control over delivery of liquid material to semiconductor processing tool
Liquid material is precisely dispensed to a semiconductor processing tool utilizing closed loop control. In one embodiment, CMP slurry material of known density is supplied from a reservoir/mixing vessel to a dispense module. The dispense module also rece...
05/13/2003
6520186Reshapable hair styling composition comprising silicon-containing polycondensates
A reshapable hair styling composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, such as a polycondensate that is functionalized with at least one hydrolyzed or hydrolyzable sily...
02/18/2003
6394320DISPOSABLE PACKAGING DEVICE THAT DISPENSES CONTENTS BY MOUTH/BREATH, WITH FRONT-END LOADING, A BUILT-IN BARRIER TO INSURE CONTENTS ARE DISPENSED ONLY IN APPROPRIATE DIRECTION, AND TEAR-AWAY SECTIONS OF THE MOUTHPIECE
The present invention provides a packaging device which allows for expulsion or delivery of its contents by means of the user's breath. The contents to be expelled are either pre-packaged, or else loaded from the front end (i.e., chewing gum, sugar sprink...
05/28/2002
5992684Water dispensing device
A water dispenser includes a housing containing a water source and a water storage tank positioned above the water source. A water line connects the water source and the water storage tank. A vacuum pump draws a vacuum on the water storage tank thereby dr...
11/30/1999
5884820Dispensers for liquid products
A trigger pump dispenser has a unitary valve member (15) which is push-fitted into the back of the pump chamber (38). The valve member is moulded from a thermoplastic elastomer and has an inner dome (116) arranged to form the one-way valve in the inlet fl...
03/23/1999
5667105Portion control valve and system and method utilizing the same
A delivery system comprising a pump connectable to a source of pumpable material, such as flowable condiment, and a control valve including a valve body and a valve element. The valve body has an inlet coupled to the pump to receive the pumpable material ...
09/16/1997
5230445Micro delivery valve
A pistonless device for metering a quantity of fluid from a source of fluid under pressure to a delivery line at a lesser pressure comprises a valve body defining a fluid flowpath, and including a fluid accumulator in fluid communication with the flowpath...
07/27/1993
5215216Water flow responsive soap dispenser
A volumetrically variable soap chamber partially collapses in response to an initial increased pressure state imposed by initiation of water flow and a predetermined quantity of liquid soap will be dispensed. The soap chamber is replenished from a source ...
06/01/1993
5183187Piston operated fluid dispensing device
In a fluid dispenser a spring biased piston is mounted for reciprocable movement along a stem member which is moved longitudinally to actuate the dispenser. A metering chamber is located between the end of the piston and the end wall of a cylindrical cham...
02/02/1993
5149551Apparatus for and method of dispensing food product such as hard ice cream
Apparatus for automatically dispensing food product such as hard food product, having a refrigerated container for holding a supply of food product, a chamber adjacent the container for receiving food product and for delivery therefrom of a serving portio...
09/22/1992
5100031Method and apparatus for dosing and dispensing mercury into discharge lamps
An apparatus and method for accurately dosing and dispensing mercury. The apparatus includes a reservoir containing mercury and a capillary tube extending from the reservoir of mercury to a dispensing needle and having an inlet located intermediate a pair...
03/31/1992
5085345Hydraulic dispenser
The invention is a hydraulic dispenser and a method for hydraulically dispensing sample liquids. The hydraulic dispenser acts as a hydraulic press to dispense sample liquids from an insertable magazine. The hydraulic dispenser includes a hydraulic pump hy...
02/04/1992
4862834Open hot water heater
A hot water heater includes a water tank defining a tank space for accommodating water; a cold water inlet and a hot water outlet connected to the tank; a hot water tap in the hot water outlet for controlling flow of hot water from the water tank; a cold ...
09/05/1989
4810659Process for injecting a minute volume of a solution and an apparatus therefor
Process for injecting a minute volume of a solution from a nozzle device by positive pressure applied from a source of compressed air with or without positive pressure applied in parallel from a cylinder device, comprising applying the positive pressure f...
03/07/1989
4736873Self powered liquor metering pump
An apparatus for dispensing measured amounts of liquor from a liquor source under pressure. The apparatus includes a hand held nozzle with a thumb operated plunger valve and with the nozzle connected to the liquor source and a source of gas under pressure...
04/12/1988
4690309Portable, self-powered, adjustable herbicide dispensing system
A self-powered spraying device for dispensing a metered amount or a continuous amount of chemical. A valve is connected through conduits to a cavity in front of a piston, to a cavity in the rear of the piston, to a fluid pressure source and to a nozzle. I...
09/01/1987
4650099Liquid dispensing gun
A liquid dispensing gun for repeatedly dispensing precisely metered quantities of liquid from a pressurized source. The gun comprises a hollow body having a valve chamber and a metering chamber connected thereto by a control orifice. An axially slidable v...
03/17/1987
4638924Self mixing sprayer
A sprayer mixes water and concentrate on an "as-used" basis. A preselected amount of concentrate is dispensed into a mix tank for each reciprocation of a proportioning pump set. The amount of concentrate dispensed is selected by varying the pump set strok...
01/27/1987
4591077Continuous 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 chamber which comprises part of an encircling accumulator e...
05/27/1986
4580703Fluid metering apparatus
A precision fluid measuring apparatus is provided which is simple to operate and manufacture, but which permits precise measurement of fluid quantities in a closed system. A flow passageway is defined by a conduit having three sets of apertures wherein th...
04/08/1986
4521181Fuel fume generator kit
A fuel fume generator kit with a fuel tank having a fuel entry chamber and a vacuum chamber separated by a baffle, said baffle having apertures defined at the bottom thereof to allow the fuel to pass from the entry chamber to the vacuum chamber; means to ...
06/04/1985
4494913Positive displacement injector
A positive displacement injector for automatic centralized lubrication systems is constructed to include a two-piece disk-seal valve assembly that acts as a check valve and also provides seals at oppositely facing surfaces. The assembly consists of a stif...
01/22/1985
4452380Portable apportioning apparatus
Portable apportioning apparatus, readily attachable to a meat grinder or stuffer or similar product dispensing mechanism, including a product flow tube having an inlet and an outlet and an internal stop; a housing, defining a closed cavity, rotatingly eng...
06/05/1984
4433797Metered quantity dispensing valve
In a pressure vessel containing fluid or pasty product and equipped with a manually operable discharge valve spring-biased to a closed position, dispensing means for allowing a metered amount of said product to reach said discharge valve on operation ther...
02/28/1984
4371101Filtering screen for use in apparatus for the dosing of powdered material
An apparatus for the dosing of finely powdered material employs a volumetric chamber adapted to receive an amount predetermined by volume of the powdered material, and presenting a filtering screen through which pneumatic suction is applied for the taking...
02/01/1983
4335835Device for the intravenous or enteric infusion of liquids into the human body at a predetermined constant rate
A portable device for accurately metering a liquid for intravenous or enteric infusion into a patient's body in which the pressure from a pressure source is utilized to pressurize the liquid and the pressurized liquid becomes the sole driving force to met...
06/22/1982
4301795Vaccination gun
In a vaccination gun provided with a piston pump for the vaccine and a gas-propelled motor for the vaccine pump, the drive motor is arranged with one end thereof coupled to the vaccine pump. In the handle grip of the vaccination gun, a coupler connects a ...
11/24/1981
4271989Micro-metering system
A housing having an inlet port and an outlet port utilizes a variable volume cavity connected to the housing and includes a device for limiting the volume of the cavity which is alternately filled through the inlet port and exhausted through the outlet po...
06/09/1981
4241853Dispenser for either continuous or intermittent discharge
A multi-function dispenser may be adjusted to obtain a spray or stream of the material dispensed, either as a long duration discharge of the material or as intermittent discharges corresponding to actuation of a trigger actuator, or as a continuous discha...
12/30/1980
4191313Trigger operated dispenser with means for obtaining continuous or intermittent discharge
A trigger operated dispenser includes a plurality of chambers with movable members therein, and operable to draw material from a container, pressurize it, accumulate a quantity of material under pressure, and discharge the material to a point of use. An a...
03/04/1980
4176764Mechanically operated mixing dispenser having a plurality of expansible chambers and a plurality of accumulating chambers
A mechanically operated mixing dispenser for mixing and discharging materials under pressure, includes a plurality of accumulating chambers for receiving and accumulating materials to be mixed and dispensed and operable to discharge the materials under pr...
12/04/1979
4174052Mechanically operated dispensing device with expansible bulb
An economical and easy to operate mechanically operated dispensing device has a rotatable actuator connected with at least one expansible chamber to effect operation of the expansible chamber to draw material to be dispensed from a container into the expa...
11/13/1979
4170319Apparatus for controlling fluid flow in a fluid delivery and mixing system utilizing positive displacement devices
A system for mixing a shot of at least two fluid components in which the components are stored in accumulators and are supplied simultaneously therefrom to the input ports of a mixing device. The fluid components are stored in the accumulators at preselec...
10/09/1979
4169544Mixing and distributing apparatus for gasoline and oil
A mixing and distributing device for gasoline and oil comprises an oil inlet, a duct for gasoline under pressure and a delivery duct. A first vertical cylinder having a first piston is fed from the top with oil and gasoline through a slide valve. A second...
10/02/1979
4167941Mechanically operated dispensing device for increasing discharge pressure and dispensing time
A dispensing device for discharging material under pressure, includes at least one accumulating chamber for receiving and accumulating material to be dispensed and operable to discharge the material under pressure over a sustained period of time for use a...
09/18/1979
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