Pipe joints or couplings – Flexible joint – rigid members – Bellows
Patent
1994-03-21
1995-03-14
Nicholson, Eric K.
Pipe joints or couplings
Flexible joint, rigid members
Bellows
285299, 285402, 277212FB, 92 34, F16J 1552, F16L 27107
Patent
active
053971574
ABSTRACT:
A bellows that is affixable by way of a connecting sleeve to a machine part, and is made of polymer material and has folds formed, at least in one partial area, in the shape of a screw thread. The connecting sleeve is provided with at least two retaining elements that are distributed in the circumferential direction and project inwardly and/or outwardly from the top surface of the connecting sleeve, the retaining elements being able to be forced into engagement with snap-in locking elements of the machine part, which exhibit a groove following the direction of the folds.
REFERENCES:
patent: 1864861 (1932-06-01), Schaller
patent: 1978529 (1934-10-01), Harrah
patent: 4306743 (1981-12-01), Hinshaw et al.
patent: 4313626 (1982-02-01), Duncan
patent: 4314717 (1982-02-01), Bjurman
patent: 4477109 (1984-10-01), Kleuver
patent: 4676513 (1987-06-01), Tiegs et al.
patent: 4708370 (1987-11-01), Todd
patent: 5050894 (1991-09-01), Merel et al.
patent: 5236204 (1993-08-01), Hempel
Abstract of GM 82 00 937, Elastrogran Kunststoff-Technik GmbH, Lemforde, DE, Sep. 16, 1982.
Hempel Jurgen
Muller-Broll Gerhard
Firma Carl Freudenberg
Nicholson Eric K.
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