Rotatable seal for ball valve

Details Rotatable seal for ball valve Rotatable seal for ball valve

2005-12-06

2005-12-06

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Rotary valves

Ball valve

C251S315160, C251S315140, C251S315100

Reexamination Certificate

active

06971633

ABSTRACT:
A ball valve assembly having two end bodies selectively detachable from each other with each end body defining a fluid conveying bore is provided. A rotatable ball valve element is disposed within the end bodies and defines a central passage having an axis, with the rotatable ball valve element having an open position in which the central passage is aligned with the fluid conveying bores and a closed position in which the passage is not aligned with the fluid conveying bores. The ball valve assembly also includes a pair of seals, with a seal disposed in each end body and in selective abutting engagement with the rotatable ball valve element. The structure of the rotatable ball valve element is controlled such that the ball valve assembly is assembled with the ball in an open position, thereby substantially eliminating the significant force normally required for assembly of the ball valve assembly.

REFERENCES:
patent: 1330429 (1920-02-01), Campbell
patent: 3095898 (1963-07-01), Freeman et al.
patent: 3533597 (1970-10-01), Bolling
patent: 3784155 (1974-01-01), Tomlin
patent: 3827671 (1974-08-01), Bolden et al.
patent: 4193580 (1980-03-01), Norris et al.
patent: 4411407 (1983-10-01), Ninomiya et al.
patent: 4637421 (1987-01-01), Stunkard
patent: 4683906 (1987-08-01), Butler et al.
patent: 5152502 (1992-10-01), Randall et al.
patent: 5181539 (1993-01-01), Yokoyama
patent: 5313976 (1994-05-01), Beasley
patent: 5445187 (1995-08-01), Farquhar
patent: 5482253 (1996-01-01), Klyde
patent: 5911405 (1999-06-01), Korczynski, Jr. et al.
patent: 6173940 (2001-01-01), Kardohely et al.
patent: 6267353 (2001-07-01), Friedline et al.
patent: 6485000 (2002-11-01), Klyde et al.
patent: 2001/0045231 (2001-11-01), Monod
patent: 592 473 (1990-01-01), None
patent: 195 20 900 (1996-12-01), None
patent: 0 217 993 (1987-04-01), None
European Search Report, Application No. EP 03 02 3269, Banjo Corporation, dated Dec. 16, 2003.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3519058