Pressure capsule for spray can and spray can which utilizes such

Dispensing – Automatic control – Of dispensers with fluid pressure discharge assistance

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Details

222130, 222399, 222494, 222510, 137903, B67D 508

Patent

active

052859312

ABSTRACT:
A pressure capsule for a spray can includes a housing with a chamber disposed therein and a valve mounted within a wall of the housing, the valve is capable of being moved into an open and a closed position such that the valve is moved into the closed position when (1) the pressure capsule is placed in an atmospheric environment and (2) the pressure capsule is placed in a spray can and subjected to a pressure equal to or greater than the operating pressure of the spray can.

REFERENCES:
patent: 1349443 (1920-08-01), Stokes
patent: 2794579 (1957-06-01), McKernan
patent: 3243085 (1966-03-01), Wilson
patent: 3258163 (1966-06-01), Brush
patent: 3468137 (1969-09-01), Welty
patent: 3613954 (1971-10-01), Bayne
patent: 3815793 (1974-06-01), Morane et al.
patent: 3995778 (1976-12-01), Gamadia
patent: 4049158 (1977-09-01), Lo et al.
patent: 4399158 (1983-08-01), Bardsley et al.
patent: 4995533 (1991-02-01), Vandoninck
patent: 5090595 (1992-02-01), Vandoninck
patent: 5110014 (1992-05-01), Doundoulakis

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