Pipe joints or couplings – Swivel – Pipe in socket type
Patent
1978-12-21
1981-11-10
Callaghan, Thomas F.
Pipe joints or couplings
Swivel
Pipe in socket type
285286, 285DIG17, F16L 2700
Patent
active
042994152
ABSTRACT:
The present invention relates to swivel fluid fitting and swivel hose ends. In prior art designs, it has been a problem to provide simple, compact, and economical swivel fluid fittings in which the ball thrust bearings are both lubricated and protected from the environment by being located on the fluid side of the rotary seal. The present invention solves the problem by partially assembling the swivel fluid fitting prior to projection welding of the two-piece outer member and by magnetically retaining the steel balls during assembly. Principal uses for the invention include providing swiveling joints in either rigid or flexible conduits for conducting of air, gasses, and liquids.
REFERENCES:
patent: 1703232 (1929-02-01), Gray et al.
patent: 2226826 (1940-12-01), Miller
patent: 2340349 (1944-02-01), Somes
patent: 2724368 (1955-11-01), Miller
patent: 2745682 (1956-05-01), Chevallier
patent: 2786698 (1957-03-01), Bard
patent: 3314694 (1967-04-01), Faccou
patent: 3578361 (1971-05-01), Corrigan
patent: 3799589 (1974-03-01), Boelkins
patent: 4099706 (1978-07-01), Steele, Jr. et al.
Imperial Eastman Catalog, p. 12.
Aevoquip Bulletin 5375, cover page.
Hydraulics Inc., S Series, 1 p.
Callaghan Thomas F.
Miller Wendell E.
PATCO
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