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US 9,777,846 B2Granted
Relating to gate valves
AssigneeProcess Components Limited
InventorsAnthony Goodwin, Paul Bailey
Life of this patent
Estimating the term…
Abstract
A gate valve (10) is provided and comprises: a valve body (12,14) including an aperture (20, 22); a gate (42) reciprocally movable within the body between a first position in which the aperture is occluded to a second position in which the aperture is open; a bearing member (36a, 36b) over which the gate moves in the body; and a loading member (30a, 30b) for urging the bearing member against the gate. The loading member comprises a lattice-like elastomeric mat (30a, 30b).
Claims22
A gate valve comprising:
- a valve body including an aperture,
- a gate reciprocally movable within the body between a first position in which the aperture is occluded and a second position in which the aperture is open,
- a bearing member in contact with a major surface of the gate and over which the gate moves in the body, and
- a loading member arranged to urge the bearing member against the major surface of the gate, in which the loading member comprises a lattice-like elastomeric mat, the mat comprising a framework which defines a plurality of cut-outs, and the framework has a cross section with chamfered sides.
1 more element
A gate valve comprising:
- a valve body including an aperture,
- a gate reciprocally movable within the body between a first position in which the aperture is occluded and a second position in which the aperture is open,
- the valve body comprises two complimentary housing sections,
- each housing section has a respective bearing member in contact with a major surface of the gate and over which the gate moves in the body, and
- each housing section has a respective a loading member arranged to urge its respective bearing member against the major surface of the gate,
- in which each loading member comprises a lattice-like elastomeric mat, the mat comprising a framework which defines a plurality of cut-outs and the framework has a cross section with chamfered sides.
3 more elements
Dependencies are inferred from the claim text.