Pipe joints or couplings – Convertible
Patent
1983-02-14
1988-01-12
Arola, Dave W.
Pipe joints or couplings
Convertible
285 24, 285 93, F16L 2500
Patent
active
047186992
ABSTRACT:
A gas service outlet station is disclosed having a gas-unique keying system which permits the provision of specific keying for a large number of gas services with the use of relatively few universal parts. In preferred forms, the outlet station face plate assemblies are removable from the corresponding valve bodies without destroying the required gas-unique keying between the face plate assembly, valve body and gas service box.
REFERENCES:
patent: 2908511 (1959-10-01), Rogers
patent: 3287031 (1966-11-01), Simmons et al.
patent: 3448760 (1969-06-01), Cranage
patent: 3544257 (1970-12-01), Cranage
patent: 3563267 (1971-02-01), Thompson
patent: 3643985 (1972-02-01), Cranage
patent: 3774636 (1973-11-01), Arita
patent: 4123089 (1978-10-01), Viero et al.
Cranage Bidwell C.
Kulish Stanley J.
Mariol James F.
Swank Robert P.
Allied Healthcare Products, Inc.
Arola Dave W.
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