Pipe couplings

Details Pipe couplings Pipe couplings

1979-03-08

1981-03-31

Callaghan, Thomas F.

Pipe joints or couplings

With indicator, alarm or inspection means

285229, F16L 2710

Patent

active

042589380

ABSTRACT:
A pipe coupling comprising an elastomeric bellows having annular end faces which, in use, abut corresponding annular flanges of the pipes being coupled, the bellows further including an internal wall defining a passageway for fluid flowing through the coupling, and an external wall forming an annular cavity around the passageway, each of the walls having at least one arch to allow for expansion and contraction of the bellows.

REFERENCES:
patent: 1218895 (1917-03-01), Porter
patent: 3029094 (1962-04-01), Parlasca et al.
patent: 3039795 (1962-06-01), Reuter
patent: 3299417 (1967-01-01), Sibthorpe
patent: 3473828 (1969-10-01), Pearson
patent: 3552776 (1971-01-01), Leymann
patent: 3695637 (1972-10-01), Satterthwaite et al.

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