Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1982-04-19
1983-06-07
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 89, 277 93SD, 277126, 277144, F16J 1536, F16J 1538
Patent
active
043867855
ABSTRACT:
A shaft seal including a sealing element and a drive ring assembly for mounting the sealing element with respect to a shaft, for rotation therewith; the drive ring assembly comprising a pair of concentric rings one mounted within the bore of the other, a plurality of circumferentially spaced radial clamping screws in screw threaded engagement with the outer ring, so that they may be tightened against the outer surface of the inner ring, the abutting surfaces of the screws and the inner ring being mutually inclined, so that tightening of the screws against the inner ring, will cause the inner ring to move axially towards a shoulder on the bore of the outer ring, so as to compress a sealing ring positioned between the shoulder and the opposed end of the inner ring, thereby causing the sealing ring to expand radially into sealing engagement with the opposed surfaces of the shaft and the outer ring, while at the same time said screws deform the inner ring into clamping engagement with the shaft.
REFERENCES:
patent: 1569751 (1926-01-01), Higgins
patent: 4103904 (1978-08-01), Tankus
patent: 4114904 (1978-09-01), Wentworth
patent: 4136887 (1979-01-01), Wentworth
Crane Packing Limited
Ward, Jr. Robert S.
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