Dispensing apparatus for metered quantities of pressurised fluid
Patent 4896832 Issued on January 30, 1990. Estimated Expiration Date: 
August 25, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 25, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2904223 3310830 3456646 3652018 Method of assembling an aerosol dispenser Metered quantity dispensing valve Aerosol container and process for manufacturing same Push-nipple for medical sprayer Patent #: 4801093 InventorAssigneeApplicationNo. 236397 filed on 08/25/1988US Classes:239/322, Fluid pressure actuated128/200.23, Pre-pressurized container holding medicament128/203.23, Pocket-type draw tube having discharge aperture for air/treating agent mixture at end thereof128/207.18, Respiratory gas supply means enters nasal passage222/92, COLLAPSIBLE WALL-TYPE CONTAINER222/95, With wall-collapsing means222/162, Moving relatively to trap, impeller or valve to cause discharge222/250, With discharge volume varying means222/386.5, Nonrigid follower222/389, Fluid pressure actuated222/402.2, Pressure lock trap chamber239/323, Collapsible or flexible follower (i.e., non-rigid)239/470, And flow passage in post239/471, Having valved inlet239/493Downstream end of core member slotted to form whirl passagesExaminersPrimary: Skaggs, H. GrantAttorney, Agent or FirmForeign Patent References
International ClassB05B 011/02Foreign Application Priority Data1987-09-09 GBAbstractA dispensing apparatus comprises a pressurised dispensing container (3), a housing (2) for the container defining a bore, the container having a body (50) which is axially slidable in the bore, the container having a collapsible metering valve (8) located at a first end (6) of the body for dispensing metered quantities of fluid and actuated by axial depression of a valve stem (9) defining a dispensing flowpath, a valve actuator (11) fixedly connected to the housing at a corresponding first end (7) thereof and defining a further dispensing flowpath for product fluid dispensed through the stem, and trigger means (30) operable to urge the container body axially towards the first end of the housing such that the valve stem is depressed by relative movement together of the valve and actuator and thereby dispensing a metered quantity of fluid, wherein the container body defines a chamber (4) and the container includes means (5) dividing the chamber into a product fluid reservoir (25) communicating with the valve and a propellant fluid reservoir (26), the dividing means being movable such that propellant pressure is applied to the product fluid without mixing of the respective fluids. The apparatus is suitable for the nasal administration of insulin.Field of SearchWith casing or supportMoving relatively to trap, impeller or valve to cause discharge MOVABLY MOUNTED SUPPLY CONTAINER Fluid pressure actuated Nonrigid follower Pressure lock trap chamber Valved outlet, movable discharge guide and/or gas vent With container end overcap having actuator With wall-collapsing means Flexible side wall portion between separable axially spaced rigid members Flexible Fluid-operated Cyclical-type metered injector Fluid pressure actuated Collapsible or flexible follower (i.e., non-rigid) Moving solid surface engages material to be sprayed Fluid pressure discharge means Means to pressurize contents of holder And flow passage in post Having valved inlet Slotted, ported or grooved modifying member Having a solid core In or on flow-passage walls Downstream end of core member slotted to form whirl passages | |
