Wiper for a rotary disk valve

Details Wiper for a rotary disk valve Wiper for a rotary disk valve

1992-02-27

1994-02-08

Schwadron, Martin P.

Fluid handling

Systems

Flow path with serial valves and/or closures

137242, 251314, F16L 2900, F16K 2500

Patent

active

052841820

ABSTRACT:
A rotary valve has a wiper member formed from an elastomeric material, the wiper member extending circumferentially of the valve seat, and, in an unstressed condition of the wiper member, extending radially inwardly of said valve seat, the wiper member being operatively positioned for it to wipe clean an outer circumferential surface of the valve member as the valve member is moved from an open position to a closed position, the wiper member being supported for limited movement relative to the valve seat, whereby, upon stressing of the wiper member by the valve member, the wiper member can retract into the valve seat.

REFERENCES:
patent: 4193580 (1980-03-01), Norris et al.
patent: 4382450 (1983-05-01), Tennick
patent: 4577659 (1986-03-01), Gembus et al.
patent: 4671310 (1987-06-01), Henninger

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