Rigid pipe connector with lock ring and method of making the sam

Details Rigid pipe connector with lock ring and method of making the sam Rigid pipe connector with lock ring and method of making the sam

1977-05-04

1978-11-07

Schroeder, Werner H.

Pipe joints or couplings

With assembly means or feature

285381, 285308, 285321, 29446, F16L 3500

Patent

active

041242335

ABSTRACT:
A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines. A lock ring holds the connector against axial separation to maintain the pin under axial compression and maintain the box under axial tension.

REFERENCES:
patent: 2267716 (1941-12-01), Boynton
patent: 2671949 (1954-03-01), Welton
patent: 3114566 (1963-12-01), Coberly et al.
patent: 3345087 (1967-10-01), Hanes et al.

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