Excess pressure valve for a boiler of a steamer for the steam tr

Details Excess pressure valve for a boiler of a steamer for the steam tr Excess pressure valve for a boiler of a steamer for the steam tr

1986-12-22

1988-05-10

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

219401, 220208, A47J 2716, F16K 1712

Patent

active

047428473

ABSTRACT:
There is disclosed herein an excess pressure valve for the boiler of a steamer for the steam treatment of food. The boiler includes a pipe leading outward from inside the boiler and the external end has an annular sealing face. A conical valve body closes the pipe to the outside and a packing ring is provided for engaging the sealing face. The valve body has a solid core and an elongated terminally widened shaft which extends into the perpendicular end portion of the pipe. The pipe has a constriction between the shaft end and core which traps the shaft end.

REFERENCES:
patent: 491957 (1893-02-01), Welsh
patent: 1620719 (1927-03-01), Buck
patent: 1638589 (1927-08-01), Louw
patent: 1774690 (1930-09-01), Willoughby
patent: 1958590 (1934-05-01), Pierce
patent: 2289204 (1942-07-01), Milton
patent: 2834374 (1958-05-01), Klinkenberg
patent: 3302664 (1967-02-01), Plamann
patent: 3818819 (1974-06-01), Shulz

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