Safety device

Details Safety device Safety device

1980-01-30

1981-06-16

Shoap, Allan N.

Receptacles

Closures

Sealing or closing means for vent or filling opening

137 72, 220 89B, B65D 5116, F16K 1740

Patent

active

042732514

ABSTRACT:
A fusible safety device for a pressure vessel includes a body of fusible material in the form of a tablet which acts as a leak-proofing gasket and is so arranged as not to be vulnerable to creep movement under normal temperature and pressure. The tablet is seated on a floor in a counterbore which puts the inside of the vessel in communication with atmosphere. The tablet is firmly compressed against the floor by a pressure plate in turn loaded by a sleeve screwing within the counterbore. The gas venting passage through the counterbore consists of a vent bore being the lesser diameter portion of the counterbore, and one or more holes in the pressure plate which are essentially out of axial alignment with the vent bore.

REFERENCES:
patent: 900763 (1908-10-01), McNutt
patent: 937713 (1909-10-01), Page
patent: 1068675 (1913-07-01), Lightfoot
patent: 3797692 (1974-03-01), Santoni

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