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US 4,162,030 AGranted
Disposable package dispenser having a pressure release channel
AssigneeJ. Claybrook Lewis and Associates, Ltd.
InventorsNicholas G. Capra, Ronald L. Antenore
Life of this patent
Estimating the term…
Abstract
A disposable package dispenser comprises a replaceable, collapsible, prefilled package of the product to be dispensed, and includes a product discharge member and attachment structure for releasably attaching the package to a pressurizable dispensing container. The container includes a manually operable expansible chamber to pressurize the interior of the container and thus the collapsible product containing package to collapse the package and effect pressurized discharge of the product when the discharge member is operated.
Claims14
A reuseable, pressurizable, dispensing container comprising:
- a housing having a side wall with an open end and a closed end and defining a pressurization chamber therewithin;
- expansible chamber means at the closed end and connected with the pressurization chamber to pressurize the chamber;
- manually operable means connected with the expansible chamber means to operate the expansible chamber means;
- closure means on the open end of the container releasably attaching a dispensing package thereto having a collapsible product containing member received in the pressurization chamber of the container, whereby the contents of the collapsible member may be pressurized for dispensing as desired, said closure means having attaching means thereon cooperating with complementary attaching means on the housing to releasably secure the closure means to the housing open end, said closure means normally effecting an air-tight seal with said housing open end to prevent loss of pressure from the pressurization chamber;
- product discharge means on the package for selectively discharging product from the package under pressure when the interior of the housing is pressurized upon manipulation of the expansible chamber means;
- and a pressure release channel formed through and extending angularly across the attaching means and establishing fluid communication between the pressurization chamber and the atmosphere to release pressure from the pressurization chamber upon initial opening movement of the closure means, to prevent forcible displacement of the closure means from the housing by pressure in the pressurization chamber when the closure means is loosened for removal from the housing.
3 more elements
A reusable, pressurizable, hand held dispensing container, comprising:
- a housing having a side wall with a closed end and an open end and defining a pressurization chamber therewithin;
- cylinder means carried by the closed end of the housing on the outside of the housing, said cylinder means having an air inlet opening thereto from atmosphere and an air outlet opening therefrom into the pressurization chamber;
- one way valve means controlling flow through said openings, for flow of air from atmosphere into the cylinder means and from the cylinder means into the pressurization chamber;
- piston means reciprocable in the cylinder means to draw air from atmosphere into the cylinder means, pressurize the air and transfer it under pressure into the pressurization chamber;
- rotatable piston actuating means carried by the closed end of the housing on the outside thereof, and secured to the housing by means permitting rotation between the actuating means and the housing, said actuating means having a cam means therein engaged with said piston means to reciprocate said piston means when the actuating means is rotated relative to the housing;
- closure means releasably attached to the open end of the housing for gaining access to the interior of the housing and sealed relative thereto to prevent loss of pressure developed in the pressurization chamber;
- a disposable, collapsible, flexible pouch containing product to be dispensed, carried by the closure means in a position to depend into the pressurization chamber when the closure means is attached to the housing, and being removable from the housing along with the closure means;
- and a product dispensing nozzle projecting through the closure means and communicating with the interior of the pouch, for enabling discharge of product from the pouch when the interior of the pressurization chamber is pressurized.
5 more elements
Dependencies are inferred from the claim text.