Method of checking the valves of aerosol containers for tightnes

Details Method of checking the valves of aerosol containers for tightnes Method of checking the valves of aerosol containers for tightnes

1976-08-18

1978-08-22

Queisser, Richard C.

Measuring and testing

With fluid pressure

Leakage

73 46, G01M 328

Patent

active

041079779

ABSTRACT:
Apparatus for checking the valves of aerosol containers for tightness, in which a vacuum is produced under the valve being checked by pressing the valve by its shut-off member in the open position against a resilient member on a seat in order to deform the resilient member which, after removing the force of pressing and closing the valve, tends to return to the initial position, thereby increasing the volume of the cavity under the valve. This permits reducing the time of exposing the valve to the vacuum. The seats are made blind and are arranged on an endless conveyor which moves the seats with the valves to the mechanisms effecting the operations.

REFERENCES:
patent: 2352916 (1944-07-01), Schrader
patent: 2863316 (1958-12-01), Abplanalp
patent: 2959050 (1960-11-01), Franch
patent: 3091958 (1963-06-01), Robins
patent: 3413841 (1968-12-01), Weber
patent: 3461716 (1969-08-01), Thomson
patent: 3608380 (1971-09-01), Muir et al.

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