Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 31, 2011
Patent Application Number
12568445
Date Filed
September 28, 2009
Patent Primary Examiner
Patent abstract
A seal assembly having a seal bumper wall with a series of pyramid shaped formations lying on the bumper wall. The formations cause their apex portion to wear down rapidly in use, while the remainder of the pyramids remain and act as slingers and/or produce a convection effect to reduce temperature along the sealed area. In another embodiment, there are two each pyramid shaped formations located on each of several thrust bumpers, which are held in position by a retainer.
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