Valves and valve actuation – Reciprocating valve – Gate
Patent
1976-11-01
1978-03-07
Rosenthal, Arnold
Valves and valve actuation
Reciprocating valve
Gate
251366, F16K 2704, F16K 2710, F16K 300
Patent
active
040776042
ABSTRACT:
A gate valve comprising a fabricated tubular cylindrical body with circular plate end closures. Back up rings are secured to the inner surface of the body to extend axially beyond the ends thereof and welds are placed between the closure plates and the annular ends of the body around the cylindrical surfaces of the back up rings to firmly unitize the tubular body and the end plates. One end closure plate has a slot therein to receive the valve gate closely therethrough for installation and removal thereof as required. The slot is covered by a generally rectangular bonnet plate.
REFERENCES:
patent: 2347676 (1944-05-01), Eplett
patent: 3314442 (1967-04-01), Voldin
patent: 3442286 (1969-05-01), Anderson et al.
Grove Valve and Regulator Company
Rosenthal Arnold
Stidham Melvin R.
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