Pipe coupling

Details Pipe coupling Pipe coupling

1982-12-02

1985-07-30

Callaghan, Thomas F.

Pipe joints or couplings

Packed

Radially expansible, spigot-carried

285423, 285DIG22, F16L 2100

Patent

active

045317682

ABSTRACT:
A pipe coupling apparatus comprising a concentric, relatively telescoping tube is adapted to be inserted into a receptacle. A deformable head at the distal end of the tube is deformable to an enlarged, preselected retention configuration wherein the head engages the inner wall of the receptacle to hold the pipe coupling in a locked position. Relative axial shifting of the tube deforms the head from the locking configuration to a collapsed and elongated configuration wherein the head elongates to facilitate insertion or removal of the coupling from the receptacle.

REFERENCES:
patent: 1548570 (1925-08-01), Wuesthoff
patent: 1657488 (1928-01-01), Shadden
patent: 2366067 (1944-12-01), Smith
patent: 2821413 (1958-01-01), Krapp
patent: 2889089 (1959-06-01), Herrick et al.
patent: 3578360 (1971-05-01), Eliot
patent: 3842790 (1974-10-01), Clark
patent: 4240473 (1980-12-01), Leonard

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