Sealing device designed to achieve sealing between two parts hav

Details Sealing device designed to achieve sealing between two parts hav Sealing device designed to achieve sealing between two parts hav

1990-01-17

1991-09-24

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

2513353, 277189, 277212FB, 403 50, 464174, 464175, F16J 304, F16J 1552

Patent

active

050508946

ABSTRACT:
To set up sealing between two parts, having the possibility of relative rotation to a limited extent around a determined axis, a concertina element is used. This concertina element has two rigid, end tubular sections, fixedly joined in an impervious way with respective zones of each of said parts and an intermediate tubular part between said end tubular sections, and is capable of changing shape under torsion around said axis, to an extent that is at least equal to said extent. Thus, all risks of leakage between the two parts are removed.

REFERENCES:
patent: 3063266 (1962-11-01), Rabson
patent: 3082795 (1963-03-01), Heller
patent: 3318335 (1967-05-01), Heller
patent: 3515394 (1970-06-01), Stevens
patent: 3897070 (1975-07-01), Anderson et al.
patent: 4107952 (1978-08-01), Geisthoff
patent: 4163563 (1979-08-01), Mullaney
patent: 4577871 (1986-03-01), Weghaupt et al.

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