Class 222/422 - With valve

Subclass of Class 222 - Dispensing
Definition: Dispensers utilizing valves.
No. of patents: 33
Last issue date: 12/04/2007

Number	Title	Issue Date
7303098	Valve for the application of drops A valve (20) comprises a housing body (22) with a discharge channel (34), whereby an elastically-deformable membrane (24) is provided in the housing body which seals off the discharge channel. The membrane is sealed at the front end there...	12/04/2007
7246726	Liquid material delivering method and device therefor A method and a device for accurate delivery, dripping and ejection in the form of flying droplets are provided. A liquid material is pressurized by a plunger sliding in a liquid feed passageway. A sliding surface of the plunger section sliding while closely contacti...	07/24/2007
6915928	Fluid dispenser A dispensation device having a nozzle defining a chamber and a dispensation orifice which communicates with the chamber. A transfer pin is moveably received within the chamber and moveable between a retracted position and a dispensing position. In the dispensing pos...	07/12/2005
6827240	Liquid crystal dispensing apparatus A liquid crystal dispensing apparatus includes a liquid crystal material container filled with liquid crystal material a gas supply at an upper portion of the liquid crystal material container for pressurizing the liquid crystal material with gas, a needle seat posi...	12/07/2004
6499515	Gas cushion proportioning microsystem A gas cushion proportioning microsystem to proportion liquid volumes in the microliter and sub-microliter ranges, comprising a liquid reservoir including a storage space for the liquid being proportioned the boundary line of which is broken through by an ...	12/31/2002
6422431	Microvolume liquid handling system In one embodiment, a microvolume liquid handling system includes a microdispenser employing a piezoelectric transducer attached to a glass capillary, a positive displacement pump for priming and aspiring transfer liquid into the microdispenser, controllin...	07/23/2002
6371331	Electronic apparatus for dispensing precise small quantities of fluid An apparatus for dispensing a measured quantity of a liquid has a container holding a quantity of liquid to be measured and dispensed and a conduit with an inlet end, an outlet end and a measuring section having a known volume. A sensor determines when th...	04/16/2002
6308867	Media dispenser The dispenser outlet (13) is microbiologically sealingly closeable by a valve stopple (25) which closes counter flow direction (11). Outlet 13 is manually reversely opened prior to the pump stroke against a spring (34). The medium reaches outlet (13) via ...	10/30/2001
5871127	Automatically-venting dispensing cap A dispensing cap including a rotary valve communicating with an external open-ended dispensing tube portion, the valve being configured to communicate, in a venting position, with a venting pathway and to communicate, in a dispensing position, with an int...	02/16/1999
5857429	Poultry watering system A poultry watering system includes a fluid conduit integrally formed with a pair of depending flanges. Each flange has a retention ledge depending therefrom and extending toward the other flange. A plurality of openings are provided in the fluid conduit. ...	01/12/1999
5788127	Liquid dispensing valve A liquids dispensing valve comprising a cylindrical body (10) having a tapered outlet passage leading to an outlet orifice (12) at one end and an inlet orifice (30) at the other. Multiple pistons (18, 19, 20 and 21) depressed by springs (23, 24 and 25) pr...	08/04/1998
5769278	Adjustable measured dose dropper A measured dose dropper includes an adjustable extension fitted within a hollow barrel in an end opposite that of the opening of the barrel. The adjustable extension includes gradation marks which correspond to the volume within the hollow barrel as adjus...	06/23/1998
5685869	Apparatus for applying medicament to an eye An apparatus is used to apply medicament to an eye and stores the medicament in a medicament chamber. A nozzle is coupled in fluid communication with the medicament chamber and is formed by an outer nozzle portion and an inner nozzle portion received with...	11/11/1997
5665079	Eye drop dispenser including slide A slide for an eye drop dispenser. The slide, which may be secured to a container, is formed with a longitudinally extending channel and a distal end configured to rest against the lower eyelid of an individual during administration of a drop to the eye. ...	09/09/1997
5655686	Device for unidirectionally dispensing a hygienic cleaning liquid The invention relates to a device for unidirectionally dispensing a hygienic cleaning and/or flushing liquid into the nasal and sinus cavities when an occluder is inserted into one of the nostrils. The liquid is contained in a pliable container which, upo...	08/12/1997
5580528	Breakage resistant laboratory glassware article A breakage-resistant form of separatory funnel or other laboratory glassware, such as addition funnel, flask, buret, or chromatography column, is provided. The glassware features an unbreakable plastic stem, preferably removably attached, below the glass ...	12/03/1996
5329877	Watering valve for small animals having variable flow rates The watering valve (10) according to the invention is designed for feeding of water to the chickens according to their need for water in such a way that a flow restriction section (27) which is formed between an upper pin (16) and a part of the housing (1...	07/19/1994
5152424	Drop counting system An electronic apparatus for counting and recording a number of drops of fluid. The preferred embodiment of the invention is configured as a molded receptacle housing for receiving a commercially available eyedrop bottle in which the cap has been replaced ...	10/06/1992
5073348	Liquid addition funnel for pressure reactors A pressure equalizing liquid addition funnel for a closed system reactor is described. The funnel includes an internal valve stem which seats in the outlet port and extends therethrough and which defines a lumen which extends axially from below the outlet...	12/17/1991
5037001	Means and method for metered single-drop dispensing of water solutions from aerosol container Delivery of water solutions in metered drops through a metered valve aerosol package by specific selection of propellant and valve actuator allows multidose dispensing of preservative-free product formulations to a selected site of application. A known ty...	08/06/1991
5024355	Device for dispensing a liquid or a cream in small-volume drops, and an associated dispensing assembly The present dispenser device is designed in particular for eye treatment and comprises a pump body including a pump chamber, a piston slidable within the chamber and extended beyond the chamber by a rod pierced by a channel capable of communicating with t...	06/18/1991
5012496	Drop counting system An electronic apparatus for counting and recording a number of drops of fluid. The preferred embodiment of the invention is configured as a molded receptacle housing for receiving a commercially available eyedrop bottle in which the cap has been replaced ...	04/30/1991
4953763	Animal scent dispensing apparatus An animal scent dispensing apparatus includes a housing that can be supported in an elevated position above the ground. A reservoir is supported by the housing for containing an animal scent to be dispensed. An outlet releases fluid scent from the reservo...	09/04/1990
4924271	Oil distribution system for a heat and pressure fuser An oil distribution system for a heat and pressure fuser includes a metering assembly which gravity feeds oil along an inclined channel to a plurality of reservoirs. The metering assembly has a length which approximates the length of the fuser roll surfac...	05/08/1990
4643854	Shell forming system An apparatus is provided for forming gas-filled spheres of metal, glass or other material, which produces spheres (12) of uniform size and wall thickness in a relatively simple system. The system includes concentric nozzles, including an inner nozzle (18)...	02/17/1987
4630758	Liquid tank A liquid tank structure for reducing hydrostatic pressure at an outlet thereof. The structure has a liquid container having an outlet at its lower portion, and a capillary member within the liquid container for exerting a force on a liquid therein in a di...	12/23/1986
4568004	Container allowing drop by drop dispensing of a dose of a fluid substance A container for drop-by-drop dispensing of a fluid substance comprises a bottle having a detachable stopper mounted movably on the neck of the bottle so that, in a stoppering position, discharge ports of the stopper are closed off by the neck of the bottl...	02/04/1986
4553686	Drop dispenser An improved drop dispenser for use with a closed compressible container, which dispenser is comprised of a small diameter tubular dispenser member of a resilient plastic material deformed at the free end thereof to provide a normally closed, integral valv...	11/19/1985
4527712	Method and apparatus for dispensing liquid compositions A method and apparatus for dispensing liquid compositions. The apparatus includes a reservoir for containing the liquid at a low temperature, a metering device for transferring the liquid to a circulating loop at a higher temperature, a heater/mixer for c...	07/09/1985
4509566	Separatory funnel and valve device A separatory funnel having a valve stem mounted through its center to accurately open, close, and regulate the flow of liquid from the funnel. The valve stem is provided with a passageway therein for forming a separate channel from the path of liquid flow...	04/09/1985
4294406	Program controllable free falling water drop fountain A computer controllable water droplet fountain having a plurality of water droplet forming valve assemblies mounted in a constant level water manifold and a base positioned in a vertically spaced relation to said manifold to provide a three dimensional vi...	10/13/1981
4156495	Method 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
4042153	Liquid dropping device Distinct droplets of a slurry are dispersed by a dropping device consisting of a resilient tube connected to a liquid reservoir so that the liquid flows through the tube, and two valves and a plunger which work in a six-movement cycle on the outer surface...	08/16/1977

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Class 222/422 - With valve