Ball stem seal

Details Ball stem seal Ball stem seal

1998-01-16

2000-10-10

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

277514, 277530, 137312, F16K 4104, F16K 4108

Patent

active

061293369

ABSTRACT:
A stem seal assembly comprises a stem having a top end and a bottom end. The stem is adapted to fit in a valve body and interface with the valving member. A ball segment integral to the stem has a top surface facing upwardly and a bottom surface facing downwardly. A first seal engages the top surface of the ball segment and the second seal engages the bottom surface of the ball segment.

REFERENCES:
patent: 945433 (1910-01-01), Allen
patent: 3043324 (1962-07-01), Morgan
patent: 3186681 (1965-06-01), Lowrey
patent: 3425663 (1969-02-01), Priese
patent: 3443816 (1969-05-01), Saleri et al.
patent: 4317573 (1982-03-01), Karkkainen
patent: 5263682 (1993-11-01), Covert et al.
patent: 5326074 (1994-07-01), Spock, Jr. et al.
patent: 5375812 (1994-12-01), Kent
patent: 5407176 (1995-04-01), Nevrekar
Brochure from Pfannenschmidt GmbH Kugelhahne, KK-8-91.
German Patent Application entitled "Schaltwellendichtung", Nov. 1, 1996.

Affiliated with

Also associated with

Rating

Ball stem seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2251080