Pipe joint

Details Pipe joint Pipe joint

1975-01-20

1976-11-23

Callaghan, Thomas F.

Pipe joints or couplings

With lubrication

285166, 285336, 285369, 285370, F16L 2706

Patent

active

039933326

ABSTRACT:
The specification discloses a pipe joint which utilizes a spherically tapered coupling that mates spherically tapered pipe ends. Because of the spherical tapers, O-ring seals contained in the coupler do not engage the pipe ends until the pipe ends and coupling are seated to form the pipe joint. In one embodiment, a plastic ring or cap is made integral with each pipe end and acts as a sliding surface that allows ready joining of the pipe ends with the coupler.

REFERENCES:
patent: 1040191 (1912-10-01), Hale
patent: 1292992 (1919-02-01), Bartram
patent: 1561033 (1925-11-01), Spencer
patent: 2417025 (1947-03-01), Volpin
patent: 2907590 (1959-10-01), Oswald
patent: 3502356 (1970-03-01), Schmunk

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