Rotatable pipe coupling for a plurality of incoming and a plural

Details Rotatable pipe coupling for a plurality of incoming and a plural Rotatable pipe coupling for a plurality of incoming and a plural

1984-09-24

1987-01-13

Arola, Dave W.

Pipe joints or couplings

U-type

285351, F16L 3904

Patent

active

046359710

ABSTRACT:
The invention relates to a rotatable pipe coupling for a plurality of pipes comprising a plurality of annular bodies (1,2,3) which are concentric and in interfitted relation with respect to one another instead of being stacked upon each other.

REFERENCES:
patent: 2781134 (1957-02-01), Weir et al.
patent: 2820650 (1958-01-01), Leopold
patent: 3237220 (1966-03-01), Brandt
patent: 3648311 (1972-03-01), Voss
patent: 4126336 (1978-11-01), Ortloff et al.
patent: 4280720 (1981-07-01), Lomenech et al.
patent: 4288106 (1981-09-01), Foolen
patent: 4405162 (1983-09-01), Williams
patent: 4441522 (1984-04-01), Griffin

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