Semi-balanced staggered locking coupling

Details Semi-balanced staggered locking coupling Semi-balanced staggered locking coupling

1989-03-20

1990-05-15

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

13761403, F16L 3728

Patent

active

049249096

ABSTRACT:
A semi-balanced valve utilizing a two stage locking with the movable valve sleeve in the nipple locked to the body of the coupler for physical as well as spring loaded movement between open and closed positions.

REFERENCES:
patent: 2765181 (1956-10-01), Butterfield
patent: 3039794 (1962-06-01), De Cenzo
patent: 3613726 (1971-10-01), Torres
patent: 4200121 (1980-04-01), Walter et al.

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