Safety valve

Details Safety valve Safety valve

1988-04-27

1989-05-09

Rivell, John

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

1225041, F16K 1740

Patent

active

048279625

ABSTRACT:
A hot water system has a aperture in the hot water line normally blocked by a liquid and gas filled vial which is sealed against the aperture to close it off. However, when hot water in the system reaches a predetermined temperature the expansion of the liquid in the vial fractures it, unblocking the aperture and allowing hot water to escape from the hot water line. Cold water coming into the cylinder will prevent any further temperature rise.

REFERENCES:
patent: 768383 (1904-08-01), Lockwood
patent: 842725 (1907-01-01), Taylor
patent: 1520126 (1924-12-01), Harrold
patent: 1773401 (1930-08-01), Lovekin
patent: 2001686 (1935-05-01), Moore et al.
patent: 2047654 (1936-07-01), Te Pas
patent: 2210555 (1940-08-01), Podolsky
patent: 3735773 (1973-05-01), Roksen

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