Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Patent
1999-02-16
2000-03-14
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
277568, 277587, F16J 1516
Patent
active
060361921
ABSTRACT:
A hydrodynamically lubricated squeeze packing type rotary shaft seal suitable for lubricant retention and environmental exclusion which incorporates one or more resilient protuberances which and cooperate with the gland walls to hold the seal straight in its installation groove in unpressurized and low pressure lubricant retention applications thereby preventing skew-induced wear caused by impingement of abrasive contaminants present in the environment, and which also serve as radial bearings to prevent tipping of the seal within its installation gland. Compared to prior art, this invention provides a dramatic reduction of seal and shaft wear in abrasive environments and provides a significant increase in seal life.
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Dietle Lannie
Kalsi Manmohan Singh
DePumpo Daniel G.
Jackson James L.
Kalsi Engineering, Inc.
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