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US 6,685,451 B1Granted
Valve assembly for sucker rod operated subsurface pumps
OwnerRay K. Iveyinventor
Life of this patent
Estimating the term…
Abstract
A valve assembly for an oil pumping system including a shell, a seat affixed in a lower end of the shell, a ball positioned within the shell and having a diameter greater than a diameter of the seat, and a cage positioned within the interior passageway of the shell. The cage has a first ported area and a second ported area on opposite sides of a ball retaining system. An elastomeric ring or a resilient member is positioned against a top of the cage.
Claims18
A valve assembly for an oil pumping system comprising:
- a shell having an upper end and a lower end, said shell having an interior passageway;
- a seat affixed in a lower end of said shell, said seat having an interior diameter;
- a ball movably positioned within said shell, said ball having a diameter greater than said interior diameter of said seat;
- and
- a cage positioned within said interior passageway of said shell, said cage having an open bottom facing said seat and an open top facing said upper end of said shell, said cage having an upper portion and a lower portion and a ball retaining section, said cage having a first ported area formed in said lower portion between said bottom and said ball retaining section, said cage having a second ported area formed in said upper portion between said ball retaining section and said top, said cage having a first flanged surface at said top and a second flanged surface at said bottom, each of said first and second flanged surfaces having a diameter greater than that of a remainder of said cage.
2 more elements
A cage for a traveling valve of an oil pumping system comprising:
- a body having an open bottom and an open top, said body having an upper portion and a lower portion and a ball retaining section, said body having a first ported area formed in said lower portion between said bottom and said ball retaining section, said body having a second ported area formed in said upper portion between said ball retaining section and said top, said body having a first flanged surface at said top and a second flanged surface at said bottom, each of said first and second flanged surfaces having a diameter greater than an outer diameter of the remainder of said body.
Dependencies are inferred from the claim text.