Positive seal float collar

Details Positive seal float collar Positive seal float collar

1979-08-28

1981-09-01

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

Fluid operated

137537, 137DIG4, E21B 3408, F16K 1504

Patent

active

042866642

ABSTRACT:
A device for insuring a positive fluid seal between a float collar valving element and valve seat therein is disclosed. The device comprises a rubberlike tension strap or compression steel spring positioned within the float collar valve assembly for urging the valving element against the upper valve seat. Fluid pressure from above the valve assembly will overcome the force exerted on the valving element by the urging device and permit fluid to flow in a downwardly direction through the float collar valve assembly. However, when this fluid pressure above the float collar is reduced, the urging device overcomes the force exerted thereby and again urges the valving element in positive sealing engagement with the upper valve seat to preclude flow of fluid in an upperwardly direction back through the float collar valve assembly.

REFERENCES:
patent: 1574537 (1926-02-01), Burch
patent: 1631509 (1927-06-01), Baker
patent: 2092822 (1937-09-01), West
patent: 2161282 (1939-06-01), Crowell
patent: 2202461 (1940-05-01), Nash
patent: 2286841 (1942-06-01), Smith
patent: 3006415 (1961-10-01), Burns et al.
patent: 3086591 (1963-04-01), Sexton
patent: 3123517 (1964-03-01), Davis
patent: 3385372 (1968-05-01), Knox

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1671595