Valve construction

Valves and valve actuation – Valve head movably connected for accommodation to seat

Patent

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Details

251215, 251357, F16K 2500

Patent

active

041067479

ABSTRACT:
A valve construction including a seat, a rotatable stem shiftable endwise toward and away from the seat, a washer carried by the stem for movement therewith into and out of closing relation with the seat, the washer being rotatable relative to the stem for nonrotative bearing engagement with the seat, and interfitting guide means for holding the washer against rotation relative to the seat upon movement of the washer into and out of its sealing engagement with the seat.

REFERENCES:
patent: 68733 (1867-09-01), Grant
patent: 92748 (1869-07-01), Ramsden et al.
patent: 955272 (1910-04-01), Kilbourn
patent: 1662659 (1928-03-01), Birnstock
patent: 2271391 (1942-01-01), Drake
patent: 2403028 (1946-07-01), Smith
patent: 3286736 (1966-11-01), Guillermic
patent: 3322145 (1967-05-01), Prosser

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