Safety closure device for a pressure vessel

Details Safety closure device for a pressure vessel Safety closure device for a pressure vessel

1977-07-05

1979-01-23

Price, William

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220256, 220327, 220DIG20, B65D 4500

Patent

active

041356403

ABSTRACT:
The hold-down bolts on the cover of a pressure vessel cannot be loosened until a pressure relief valve has been opened to relieve the pressure in the vessel and to release a safety member positioned over the bolts.

REFERENCES:
patent: 2330306 (1943-09-01), Murphy
patent: 2363802 (1944-11-01), Quarfoot et al.
patent: 2818196 (1957-12-01), Morterol
patent: 2852295 (1958-09-01), Jasper
patent: 2927787 (1960-03-01), Maher
patent: 3141008 (1964-07-01), Flick et al.
patent: 3458083 (1969-07-01), Erwin, Jr.

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