Patent ID: 7052014

Claim:
A bearing isolator for sealing a rotating shaft exiting a housing comprising: a) a housing; b) a shaft extending through said housing, an annular stator member, said stator member including means for affixing said stator to said housing; c) said stator member having a radial cavity in a surface face parallel to said shaft; d) an annular rotor member, said rotor member rotatively connected to said shaft, having first and second radial rectangular cavities in the surface face parallel to said shaft; e) said radial cavity in said stator of different axial and radial dimensions than the radial cavities in said rotor; f) resilient annular elastomeric sealing member; g) the width of said first rotor radial cavity shall be slightly more than the diametric cross section of said elastomeric sealing member; h) the surface faces parallel to said shaft overlapping with at least a portion of said first and said stator cavity aligned and juxtaposed to form a fourth cavity; i) said resilient annular sealing member substantially inertly occupying said fourth cavity to seal the housing interior from the environment external said housing.