Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1987-09-22
1989-07-11
Pollard, Steven M.
Receptacles
Outlet or junction box type
Sectional receptacle
220 89A, 137 681, F16K 1740
Patent
active
048463639
ABSTRACT:
A dual gas pressure vessel is divided into a first chamber 22 and a second chamber 24 by collapsible bellows 16. As the gas in the first chamber is dishcarged through an exhaust 29 the bellows collapse until a plate 20 is pierced by a probe 32, following which the gas in the second chamber 24 is vented. A support 26 for the plate 20 ensures that, during charging of the vessel, the first and second chambers are well defined in volume.
REFERENCES:
patent: 2410310 (1946-10-01), Smith
patent: 2515068 (1950-07-01), Young
patent: 4342988 (1982-08-01), Thompson et al.
patent: 4463865 (1984-08-01), Mundt et al.
patent: 4657157 (1987-04-01), Short, III
Baj Limited
Pollard Steven M.
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