Parabolic bonnet for three-way valve
AssigneeFisher Controls International LLC
InventorWilliam Everett Wears
Life of this patent
Estimating the term…
Abstract
A fluid control device including a valve body, a control member, and a one-piece bonnet. The valve body defines a flow path for a fluid. The control member is disposed in the valve body and adapted for displacement between at least a first position and a second position. The one-piece bonnet is coupled to the valve body and defines a protrusion. The protrusion extends at least partially into the flow path and is arranged to direct at least some of the fluid flowing along the flow path when the control member is disposed between the first position and the second position.
Claims26
A bonnet for a fluid control device, comprising:
- a substantially cylindrical internal surface defining a through-bore for receiving a control member;
- a flange adapted to be coupled between an actuator and a valve body;
- and
- a protrusion for directing the flow of fluid through the fluid control device, the protrusion including a lower contoured portion comprising an outer seating surface with a frustoconical end portion converging at a first angle and a frustoconical intermediate portion converging at a second angle that is less than the first angle.
A fluid control device, comprising:
- a valve body defining a flow path for a fluid;
- a control member disposed in the valve body and adapted for displacement between at least a first position and a second position;
- a bonnet coupled to the valve body and extending into the flow path and arranged to direct at least some of the fluid flowing along the flow path when the control member is disposed between the first position and the second position, wherein the bonnet includes a protrusion including a lower contoured portion extending at least partly into the valve body, the lower contoured portion comprising an outer seating surface with a frustoconical end portion converging at a first angle and a frustoconical intermediate portion converging at a second angle that is less than the first angle.
A fluid control device, comprising:
- a valve body defining a flow path for a fluid;
- a control member disposed in the valve body and adapted for displacement between at least a first position and a second position;
- and
- a one-piece bonnet coupled to the valve body and defining a protrusion, the protrusion extending at least partially into the flow path and arranged to direct at least some of the fluid flowing along the flow path when the control member is disposed between the first position and the second position, wherein the protrusion includes a lower contoured portion comprising an outer seating surface with a frustoconical end portion converging at a first angle and a frustoconical intermediate portion converging at a second angle that is less than the first angle.
Dependencies are inferred from the claim text.