Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1984-06-06
1985-04-02
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277164, 277235R, 267 15, F16J 1512
Patent
active
045083568
ABSTRACT:
A mechanical spring seal comprising in combination an elastomeric jacket and a resilient spring insert having modified and matching C-shaped cross-sectional configurations. The major portion of the length of the spring follows a relatively straight path between a curved base and a position along the cross section at which the spring is widest, forming a pair of opposed cantilever arms which provide the major sealing force. From this region of greatest width to the tips of the spring, the curvature is substantially sharper, enabling the end of the spring to fit in fixed locked position within the jacket which conforms to it. At the base of the C-shaped spring, the curvature is also sharper than it is in the long cantilever arm portions. The spring receiving interior concavity in the jacket is complementary in nature to the shape of the spring, and has an open side for insertion of the spring into the jacket, the inwardly angled tips of the spring preventing its release from the jacket although the spring can also be replaced by an O-ring.
REFERENCES:
patent: 3680874 (1972-08-01), Schwarz
patent: 4133542 (1979-01-01), Janian et al.
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