Pressure balanced floating seal

Details Pressure balanced floating seal Pressure balanced floating seal

1983-07-29

1985-01-22

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 75, F16J 1528, F16J 1540

Patent

active

044947607

ABSTRACT:
A shaft seal that is slidably mounted in a housing with essentially equal balanced forces acting on each radial side. Fluid from the high pressure side of the shaft is communicated to equal areas on the two sides by ducts and constrained to the design areas by "O" rings. The seal moves radially in response to shaft displacements while maintaining a sealing relationship between packing material and the shaft.

REFERENCES:
patent: 3047299 (1962-07-01), Karsten
patent: 3179423 (1965-04-01), McCloud
patent: 3620243 (1971-11-01), Zatopek
patent: 3756673 (1973-09-01), Strub
patent: 3785659 (1974-01-01), Maurer
patent: 3953037 (1976-04-01), Winfield
patent: 4229011 (1980-10-01), Wikelski
patent: 4253558 (1982-10-01), Firth
patent: 4413830 (1983-11-01), Pietsch

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