Device for fixing a tubular element on a tubular connecting spig

Pipe joints or couplings – Essential catch – With manipulator

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Details

285308, 285 23, 285321, 285243, F16L 3700

Patent

active

052978230

ABSTRACT:
This device, in which the tubular element (1) is fixed to the spigot (2) by maintaining and sealing means (4), is characterized in that the maintaining and sealing means comprise two sleeves (5,6) coaxial with the spigot, one of the sleeves being an outer sleeve (5) connected to the component (3) and comprising resiliently deformable branches (10,11) biased in the direction toward the spigot, there being provided at the end of each branch a hooking portion projecting inwardly of the outer sleeve, and the other sleeve being an inner sleeve (6) comprising an abutment surface (7) and mounted to be axially movable between the outer sleeve (5) and the spigot (2) by the bearing of the tubular element (1) against the abutment surface (7), between a mounting position in which the inner sleeve (6) maintains the branches (10,11) of the outer sleeve (5) spaced away from the spigot (2), and a hooking position in which the inner sleeve releases the branches (10,11) of the outer sleeve (5), so that the hooking portions of the branches cooperate with the tubular element (1) and maintain it in position on the spigot (2).

REFERENCES:
patent: 2465197 (1949-03-01), Chatham
patent: 3439944 (1969-04-01), Leutenegger
patent: 3887222 (1975-06-01), Hammond
patent: 4362323 (1982-12-01), Lodder et al.
patent: 4613172 (1986-09-01), Schattmaier
patent: 4691943 (1987-09-01), Deland et al.
patent: 4850622 (1989-07-01), Suzuki
patent: 5005877 (1991-04-01), Hayman
patent: 5033777 (1991-07-01), Blenkush
patent: 5048874 (1991-09-01), Ohlsson
patent: 5131687 (1992-07-01), Marchou
Machine Design, vol. 53, No. 24, Oct. 1981, p. 46, Cleveland, Ohio, "Push-In Fitting Seals Pneumatic Tubing".

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