Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1986-06-09
1987-02-03
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
137315, 251178, 251195, F16K 4300, F16K 306, F16K 2500
Patent
active
046403027
ABSTRACT:
An improved double disc gate valve having sealing rings which engage the internal discs of the reciprocating gate and in which one of its discs and its sealing ring can be replaced with only partial disassembly of the valve.
REFERENCES:
patent: 1189950 (1916-07-01), Hunter
patent: 1257020 (1918-02-01), Patterson
patent: 1324351 (1919-12-01), Haynes
patent: 1632220 (1927-06-01), Demarest
patent: 1763029 (1930-06-01), Wilson
patent: 1991006 (1935-02-01), Wilson
patent: 2443929 (1948-06-01), Patterson
patent: 3504885 (1970-04-01), Hulsey
patent: 3542338 (1970-11-01), Scaramucci
patent: 4440381 (1984-04-01), Tipton, Jr.
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