Expansion pipe joint

Details Expansion pipe joint Expansion pipe joint

1992-02-03

1993-03-09

Nicholson, Eric K.

Pipe joints or couplings

With fluid pressure seal

With separate, encased pipe-gripping means

285168, F16L 2704

Patent

active

051920948

ABSTRACT:
An expansion pipe joint includes an inner sleeve having an annular projection formed on an outer surface thereof, and an outer sleeve surrounding the inner sleeve and having an annular groove formed on an inner surface thereof. An elastic ring is mounted in the annular groove for engaging the annular groove and the annular projection. The inner and outer sleeves are axially slidable relative to and inseparable from each other. The outer sleeve defines an end portion for allowing the annular projection to be inserted deeper inside than the ring.

REFERENCES:
patent: 2713503 (1955-07-01), Ekholm
patent: 2955850 (1960-10-01), Bellinger
patent: 3002771 (1961-10-01), Chakroff
patent: 3133754 (1964-05-01), Peters
patent: 3353848 (1967-11-01), Bleasby
patent: 3515414 (1970-06-01), Kowalewski
patent: 3695644 (1972-10-01), Goldberg
patent: 3938833 (1976-02-01), Miyaoka
patent: 4135742 (1979-01-01), Anderson
patent: 4706998 (1987-11-01), Peppel et al.

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