Patent ID: 8336886
Filing Date: 2012-12-25
Classification: F16J

Abstract:
1. A seal assembly for sealing a shaft, comprising: a sealing ring; and a seal connected to said sealing ring that seals a space adjacent the shaft, said seal configured to rotate relative to the shaft and including a bumper that extends axially relative to an axis of the shaft, said bumper having a plurality of discontinuities in an axial face disposed around a circumference thereof thereby defining bumper regions between said discontinuities that are longer than said discontinuities in a circumferential direction around the circumference of said seal and a plurality of dispersion members that extend radially outward relative to the axis of the shaft, wherein during rotation of said seal, said dispersion members generate a fluid disturbance in said space adjacent the shaft and said discontinuities provide a pathway for a contaminant to exit said space.