Low pressure dispensing apparatus with air pump

Dispensing – With discharge assistant – Fluid pressure

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Details

222397, 222401, 239360, 417440, B65D 8314

Patent

active

039557200

ABSTRACT:
A reuseable dispensing apparatus for dispensing a flowable product by pressurized air, comprising a refillable container for the product to be dispensed and an air pump operable by the user to pressurize the container after filling. The air pump has a conveniently grippable and storable handle. A user-actuable dispensing valve on the container dispenses product utilizing pressurized air as a propellant. Apparatuses are provided to permit the container to be depressurized at any time without product being dispensed, to relieve pressure in the pumping chamber either automatically at operating pressure or manually at any lesser pressure, and to permit the pumping handle to be conveniently stored with respect to the container. The apparatus can operate at relatively low pressure and can be made almost entirely of plastic.

REFERENCES:
patent: 1170756 (1916-02-01), Kelley
patent: 1396494 (1921-11-01), Wright
patent: 1745024 (1930-01-01), Malone
patent: 2031172 (1936-02-01), Maloney
patent: 2106620 (1938-01-01), Nilson
patent: 2481719 (1949-09-01), Buck
patent: 2753080 (1956-07-01), Bartlett
patent: 2995278 (1961-08-01), Clapp
patent: 3127070 (1964-03-01), Brickman
patent: 3357601 (1967-12-01), Crawford et al.

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