Needle valve seat

Details Needle valve seat Needle valve seat

1984-10-26

1989-03-14

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

251324, 251361, F16K 138, F16K 142

Patent

active

048119296

ABSTRACT:
A valve seat having a tubular valve seat wall portion that extends about a frusto-conical valve member that moves longitudinally into the valve seat to close a valve in which the seat and valve member are included. Coaxial openings are formed through the valve seat wall portion to provide for passage of fluids through the valve and at least one longitudinally extending groove is formed in the inner surface of the valve seat wall portion, to extend the length thereof, between the openings. A second groove can be formed in the inner surface of the wall portion opposite the first groove or, alternatively, a cut can be formed through the wall portion opposite the first groove. The valve seat can be locked against rotation by making the wall portion thereof square or providing the wall portion with an anti-rotation tab at one end of the wall portion or a notch formed through a flange at one end of the wall portion. The wall portion can be formed in two semi-tubular halves connected by a foldable web and the web can be placed on the curved surfaces of the halves to form an anti-rotation tab when the web is folded to form the wall portion into a tubular seat.

REFERENCES:
patent: 1186762 (1957-11-01), Berruet
patent: 2122667 (1938-07-01), Waddell
patent: 2621888 (1952-12-01), Allen
patent: 2735645 (1956-02-01), Freed
patent: 3128987 (1964-04-01), O'Connor
patent: 3184215 (1965-05-01), Anderson
patent: 3443789 (1969-05-01), Glasgow et al.
patent: 3761052 (1973-09-01), Tobbe et al
patent: 4431021 (1984-02-01), Scaramucci

Affiliated with

Also associated with

Rating

Needle valve seat does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-889542