Valve device

Details Valve device Valve device

1981-03-16

1982-12-21

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Plural motions of valve

137315, 251265, 251273, 251330, F16K 3150

Patent

active

043645437

ABSTRACT:
A valve device comprises a valve body having an inflow passage and an outflow passage, a valve seat fixed to the valve body at a position between the passages, a valve element for seating against and separating from the valve seat, a valve stem movable together with the valve element toward and away from the valve seat, a stem holding member secured at a portion thereof to the valve body in the body interior and holding the valve stem at a screw engagement part therewith where a surface at an extremity of the portion of the stem holding member is in abutting contact with a surface of the main body thereby to form a first metal-contact seal, a bonnet which is detachably fixed to the valve body with a sealing member interposed therebetween, and through which the valve stem is rotatably fitted, where the bonnet covers the remainder portion of the stem holding member, and a mechanism for forming a second metal-contact seal at a stem holding part of the stem holding member when the valve is in the fully opened state thereof.

REFERENCES:
patent: 364842 (1887-06-01), Morrin
patent: 734831 (1903-07-01), Diederich
patent: 938080 (1909-10-01), Schreidt
patent: 1151494 (1915-08-01), Marsh
patent: 2780233 (1957-02-01), Volpin
patent: 3257095 (1966-06-01), Siver
patent: 3275290 (1966-09-01), Siver

Affiliated with

Also associated with

Rating

Valve device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-402956