Valves and valve actuation – Rotary valves – Ball valve
Patent
1994-06-17
1996-12-24
Fox, John C.
Valves and valve actuation
Rotary valves
Ball valve
25131515, 251148, F16K 506
Patent
active
055867499
ABSTRACT:
A valve body pressure formed from pipe components includes an annular portion for receiving a ball closure member. A pair of conduit portions are connected to the annular portion and the ball. A stem housing for rotatably supporting a valve stem extends up from the annular portion. The stem housing, annular portion, and conduit portions are welded to form the unitary valve body. The conduit portions are integrally connected to end fittings adaptable to connect identical or different grades of polyethylene pipe or metal pipe to polyethylene pipe. The internal surface of the conduit portion includes gripping teeth and O-ring seals that frictionally and sealingly engage the surface of the polyethylene end fitting. The valve can include a metal end fitting and a polyethylene end fitting. The polyethylene end fitting is connected by butt fusion or electrofusion coupling to polyethylene conduit, generally 6 inches in diameter or larger for use in a natural gas distribution system. The metal valve body is wrapped with a fiberglass winding coated with epoxy for corrosion resistance and electrical isolation.
REFERENCES:
patent: 2933428 (1960-04-01), Mueller
patent: 2967067 (1961-01-01), Singer
patent: 3025086 (1962-03-01), Mosely
patent: 3245701 (1966-04-01), Leopold, Jr. et al.
patent: 3287802 (1966-11-01), Robinson
patent: 3524661 (1970-08-01), Farnam
patent: 3612584 (1971-10-01), Taylor et al.
patent: 3656711 (1972-04-01), Toelke
patent: 3857546 (1974-12-01), Quirk
patent: 3915480 (1975-10-01), Kish et al.
patent: 3990675 (1976-11-01), Bonafous
patent: 4005880 (1977-02-01), Anderson et al.
patent: 4094537 (1978-06-01), Lyall
patent: 4466640 (1984-09-01), Van Houtte
patent: 4478388 (1984-10-01), George
patent: 4482170 (1984-11-01), Jacobson et al.
patent: 4523740 (1985-06-01), Paitchell
patent: 4553562 (1985-11-01), Nakada
patent: 4589688 (1986-05-01), Johnson
patent: 4665937 (1987-05-01), Hall
patent: 4682797 (1987-07-01), Hildner
patent: 4712809 (1987-12-01), Legris
patent: 4793638 (1988-12-01), Baldwin, Jr.
patent: 4997214 (1991-03-01), Reese
patent: 5265652 (1993-11-01), Brunella
patent: 5396922 (1995-03-01), Ottens
"Dresser.RTM. 700 Universal Posi-Hold.RTM. Couplings"-Dresser Manufacturing Division, Dresser Industries Inc., Bradford, Pennsylvania 16701, Form 782-700.
"Dresser.RTM. 700 Posi-Hold.RTM. Couplings and Fittings", Dresser Manufacturing Division, Dresser Industries Inc., Bradford, Pennsylvania 16701, Form 700-185 Rev. 386.
"Dresser Couplings and Fittings for Joining Steel to Polyethylene Pipe or Tubing (SP) or Polyethylene to Polyethylene Pipe Tubing (PP)", Dresser Manufacturing Division, Dresser Industries Inc., Bradford, Pennsylvania 16701, Form 278-G.
"Double O Seal Transition Fittings", Central Plastics Company, Box 3129, Shawnee, Oklahoma 74801, 1984.
"The Lyco.RTM. Transition Fitting System", R. W. Lyall & Company, Inc., 9837 Pioneer Boulevard, Santa Fe Springs, CA 90670.
"Kerotest Weldball.RTM. Gas Distribution Valves", Kerotest Manufacturing Corp., 2525 Liberty Avenue, Pittsburgh, PA 15222, 1989.
Conley Richard W.
Daniels James R.
Visalli Robert G.
Fox John C.
Kerotest Manufacturing Corp.
LandOfFree
Composite polyethylene and transition 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 Composite polyethylene and transition valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite polyethylene and transition valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1174476