Seal for a joint or juncture – Seal between relatively movable parts
Patent
1998-05-11
2000-08-08
Knight, Anthony
Seal for a joint or juncture
Seal between relatively movable parts
277510, 277511, 277522, 277526, F16J 1518, F16J 1516
Patent
active
060989866
ABSTRACT:
A seal (14) for use between a pair of substantially concentric elements (10 and 11) capable of relative movement with respect to each other, said seal comprising a sealing element (17) having a configuration of a helix wherein the opposed axial faces of the helix are of complementary configuration and are in close abutting relationship with each other, said sealing element (17) being formed of a rigid resilient wear resistant material having a low coefficient of sliding friction, said sealing element (17) being adapted to be supported from one element (11) by a support means (13) and being in close abutting relationship with the other element (10), a clamping means (19) for causing resilient compression of the seal against the other element, a resilient means (20) mounted between the axial ends of the sealing element (17) and adapted to resiliently resist relative rotation between the ends of the sealing element (17) in a direction which will cause the sealing element (17) to expand radially.
REFERENCES:
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patent: 5492342 (1996-02-01), Dartnall et al.
Aileendonan Research Pty Ltd
Gian Research Pty Ltd.
Knight Anthony
Peavey Enoch E
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