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US 2024/0280179 A1Published application
Gate valve
AssigneeLB Bentley Limited
InventorsEdwin Smith, Nicholas Johnson
Life of this patent
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AssigneeLB Bentley Limited
InventorsEdwin Smith, Nicholas Johnson
Estimating the term…
A slab gate valve assembly having a housing (12) with an inlet (22), an outlet (24), and a gated fluid passage between the inlet (22) and the outlet (24), at least one valve seat (42, 44) disposed in the housing (12), a gate-carrying shaft (30), and a slab gate plate arrangement (32, 34) in slidable engagement with the at least one valve seat (42, 44) and to be operated via the gate-carrying shaft (30) between an open condition and a shut condition, wherein one or more plates (32, 34) of the gate plate arrangement (32, 34) are mounted at one plate end (33d) to the gate-carrying shaft (30), in a manner permitting gate plate articulation relative to the gate-carrying shaft (30), and comprise a free end (33c) not mounted to the gate-carrying shaft (30). By permitting plate articulation in a controlled manner, the assembly avoids a need for a cage, resulting in a reduced number of components and reduced space requirement.
A slab gate valve assembly comprising a housing providing an inlet, an outlet, and a gated fluid passage between the inlet and the outlet, at least one valve seat disposed in the housing, a gate-carrying shaft, and a slab gate plate arrangement in slidable engagement with the at least one valve seat and to be operated via the gate-carrying shaft between an open condition and a shut condition, wherein at least one plate of the gate plate arrangement is mounted at one plate end to the gate-carrying shaft, in a manner permitting gate plate articulation relative to the gate-carrying shaft, and comprises a free end not mounted to the gate-carrying shaft.
Dependencies are inferred from the claim text.