Sliding sleeve seal for use in fluid coupling devices

Details Sliding sleeve seal for use in fluid coupling devices Sliding sleeve seal for use in fluid coupling devices

1991-02-21

1992-04-14

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

251900, F16L 3728

Patent

active

051038684

ABSTRACT:
In a coupling including female and male coupler means for longitudinally coupling and uncoupling to provide a longitudinal fluid passage therethrough, the passage having at least one check member disposed in the through passage, which check member is moved from the blocked and unblocked positions by the uncoupling and coupling of the couplers, a valve member being resiliently biased to a blocked position and having a gasket, sealing member to seal against fluid loss, the improvement comprising a gasket support comprising concentric sleeves which define a variable channel for holding the sealing member and which move independently of each other and where when the check member is in the blocked and unblocked positions the gasket member is subjected to axial compression and into a sealing relationship and when the check member in between the blocked and unblocked positions the axial compression is relieved.

REFERENCES:
patent: 2854259 (1958-09-01), Clark

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