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Motor grounding seal

  • US 10,270,320 B1
  • Filed: 03/21/2017
  • Issued: 04/23/2019
  • Est. Priority Date: 06/25/2005
  • Status: Active Grant
First Claim
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1. A bearing isolator for shaft grounding comprising:

  • a. a stator surrounding a shaft and affixed to a housing, the stator having a main body and projections extending both axially and radially beyond the main body;

    b. a rotor surrounding the shaft, the rotor secured to the shaft, the rotor having a main body and projections extending both radially and axially;

    c. a circumferential receptor groove formed in the stator, wherein the receptor groove faces the shaft; and

    d. a circumferential conductive insert, the conductive insert placed within the receptor groove and engaged with the shaft to conduct electrical currents away from the shaft to the housing, wherein the rotor and the stator are abutted and intermeshed with each other on the shaft, the rotor radial projections extending radially outwardly farther than any radial projections of the stator.

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