Ball valve coupling

Details Ball valve coupling Ball valve coupling

1994-06-09

1995-04-04

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

13767401, F16L 3728

Patent

active

054028256

ABSTRACT:
This invention relates to a flat ball valve coupling that reduces spillage to less than 1CC. The coupling provides numerous safeguards against spillage because one of the flat ball valves rotates and pulls away from the other flat ball valve. This eliminates any spacing between the flat ball valves in the closed position thereby eliminating spillage during uncoupling. Another feature is an interlock which prevents the coupling from being accidently disconnected when either valve is open.

REFERENCES:
patent: 3159180 (1964-12-01), Courtot et al.
patent: 4271865 (1981-06-01), Galloway et al.
patent: 4438779 (1984-03-01), Allread
patent: 4577659 (1986-03-01), Gembus et al.
patent: 4664149 (1987-05-01), Fremy
patent: 5090448 (1992-02-01), Tuchet
patent: 5099883 (1992-03-01), Maiville

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