Fluid actuated gate valve assembly

Details Fluid actuated gate valve assembly Fluid actuated gate valve assembly

1988-01-15

1989-01-31

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

137315, 251 28, 251329, F16K 4300, F16K 3126, F16K 3300

Patent

active

048009172

ABSTRACT:
There is disclosed a non-electric fluid actuated gate valve assembly of the type intended for interposition between a static structure and a municipal sewer line to prevent sewer back-up in flood conditions formed by an enclosed chamber having a water inlet and a water outlet spaced therefrom and adapted for placement in the static structure and interposed in the main sewer line thereof, the water inlet having a fluid actuated gate valve assembly associated therewith, the gate valve assembly formed by gate means for alternately opening and closing the water inlet, and fluid actuated control means in operative relation with the gate means and being in fluid communication with the source of fluid under pressure such that the gate means is operated by a fluid under pressure in response to the sewer water level within the enclosed chamber thereby to open and close the gate means alternatively, and in response to the water level within the enclosed chamber.

REFERENCES:
patent: 1117394 (1914-11-01), Joleen
patent: 1779040 (1930-10-01), Hardacker et al.
patent: 1799849 (1931-04-01), Hardacker et al.
patent: 2081298 (1937-05-01), Hardacker
patent: 2116422 (1938-05-01), Anderson
patent: 2192963 (1940-03-01), Davis
patent: 2633865 (1953-04-01), Mastnock
patent: 2835270 (1958-05-01), York et al.
patent: 3104659 (1963-09-01), Smith
patent: 3605799 (1971-09-01), Cherne
patent: 4524951 (1985-06-01), Green et al.

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