Bushing having a shaft seal
AssigneeFisher Controls International LLC
InventorsTrenton Frank Jackson, Wade Jonathon Helfer
Life of this patent
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Abstract
A bushing having a shaft seal is disclosed herein. An example apparatus includes a fluid valve body, a valve shaft disposed in the fluid valve body, and a bushing disposed on the valve shaft between the valve shaft and the fluid valve body. The bushing includes a first groove disposed on an inner surface of the bushing and a second groove disposed on an outer surface of the bushing. A first seal is disposed in the first groove to seal against the valve shaft and a second seal is disposed in the second groove to seal against the valve body.
Claims20
An apparatus, comprising:
- a fluid valve body;
- a valve shaft disposed in the fluid valve body;
- and
- a bushing disposed on the valve shaft between the valve shaft and the fluid valve body, the bushing including a first groove disposed on an inner surface of the bushing and a second groove disposed on an outer surface of the bushing, a first seal disposed in the first groove to seal against the valve shaft and a second seal disposed in the second groove to seal against the valve body.
An apparatus, comprising:
- a bushing configured to support a valve shaft in a valve body, the bushing including seal grooves to receive respective seals to prevent fluid from exiting the valve body.
An apparatus, comprising:
- a valve shaft;
- a valve body holding the valve shaft;
- and
- means for supporting and sealing the valve shaft relative to the valve body.
Dependencies are inferred from the claim text.