Pigging ball valve

Details Pigging ball valve Pigging ball valve

2005-04-05

2005-04-05

Bastianelli, John (Department: 3754)

Valves and valve actuation

Detachable actuator

Rotary valve

C251S315080

Reexamination Certificate

active

06874757

ABSTRACT:
A pigging ball valve with a ball core mounted on an improved trunnion mounting. The pigging ball valve has a valve housing with a longitudinal axis. A side entry port on the valve housing is provided for entry of pigs into the valve housing. The ball core has an interior bore and is mounted on a trunnion in the valve housing for rotation about a transverse axis to the longitudinal axis of the ball core. The trunnion is a rotating stem journalled in the valve housing and connected to the ball core by a non-cylindrical portion and a cylindrical portion extending from the non-cylindrical portion towards the interior bore of the ball core. Preferably, the cylindrical portion terminates inwardly in a curved portion fitting the interior bore of the ball core.

REFERENCES:
patent: 2741138 (1956-04-01), Bennett
patent: 3038489 (1962-06-01), Allen
patent: 3284046 (1966-11-01), Allenbaugh, Jr.
patent: 3501128 (1970-03-01), Pool
patent: 3589674 (1971-06-01), Jones
patent: 3940107 (1976-02-01), Allenbaugh, Jr.
patent: 4113229 (1978-09-01), Fujiwara
patent: 4345738 (1982-08-01), Ripert
patent: 5752690 (1998-05-01), Ellett

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3432093