Seal assembly manufacturing methods and seal assemblies manufactured thereby

  • US 20050184465A1
  • Filed: 04/18/2005
  • Published: 08/25/2005
  • Est. Priority Date: 03/29/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising steps of:

  • providing a piston ring;

    providing a lapper having a top plate and an opposing bottom plate having a central rotated shaft and an outer perimeter edge;

    providing a carrier disposed on the bottom plate meshingly interacting with the outer perimeter edge and the central shaft of the bottom plate;

    disposing the piston ring into the carrier;

    bringing the top plate into a working relationship with the bottom plate sandwiching the carrier and the piston ring therebetween;

    introducing gritted oil to the top and bottom plates; and

    rotating the top plate, in which rotation of the top plate imparts rotation to the carrier and orbital movement of the carrier over the bottom plate about the rotated shaft.

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