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US 2014/0175317 A1Published application
Ball valve
AssigneeExpro North Sea Limited
InventorAlistair Tennant
Life of this patent
Estimating the term…
Abstract
A ball valve comprises a housing, a ball seat arranged in the housing and a ball member mounted within the housing and being rotatable relative to the ball seat between open and closed positions. The ball seat and ball member define respective through bores each having a bore edge, wherein the bore edge of at least one of the valve seat and ball member defines a recessed cutting region for cutting a body extending at least partially through the valve upon closure of the ball member.
Claims46
A ball valve comprising:
- a housing;
- a ball seat arranged in the housing;
- a ball member mounted within the housing and being rotatable relative to the ball seat between open and closed positions;
- wherein the ball seat and ball member define respective through bores each having a bore edge, and wherein the bore edge of at least one of the valve seat and ball member defines a recessed cutting region for cutting a body extending at least partially through the valve upon closure of the ball member.
1 more element
A method for isolating a fluid conduit system having a body extending internally therethrough, comprising:
- securing a ball valve in-line within the fluid conduit system, wherein the ball valve comprises a housing, a ball seat arranged in the housing and a ball member mounted within the housing and being rotatable relative to the ball seat between open and closed positions, wherein the ball seat and ball member define respective through bores each having a bore edge, and wherein the bore edge of at least one of the valve seat and ball member defines a recessed cutting region;
- and
- rotating the ball member to close the valve and to cut a body extending at least partially through the valve with the recessed cutting region.
Dependencies are inferred from the claim text.