Ball valves

Details Ball valves Ball valves

1974-11-11

1976-01-06

Cline, William R.

Valves and valve actuation

Rotary valves

Ball valve

251360, 251174, 251316, 251317, 13732901, F16K 506

Patent

active

039306364

ABSTRACT:
A ball valve having a seating ring held in a recess in the valve bore by threaded portions of the ring and bore such that, when the ring is in position, the threaded portion on it has passed right through the threaded portion of the bore, there being a radial expansion gap between part of the ring and the recess.

REFERENCES:
patent: 2890017 (1959-06-01), Shafer
patent: 3208470 (1965-09-01), Lidgard
patent: 3378026 (1968-04-01), Oliver

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