Seal assembly manufacturing methods and seal assemblies...

Details Seal assembly manufacturing methods and seal assemblies... Seal assembly manufacturing methods and seal assemblies...

2007-04-24

2007-04-24

Eley, Timothy V. (Department: 3724)

Abrading

Machine

Rotary tool

C451S267000, C451S269000

Reexamination Certificate

active

11108209

ABSTRACT:
Finishing a seal assembly as a unit is proposed, which prevents alignment of the end gaps of the annular body and the annular ring of the seal assembly, provides the ability to manufacture the seal assembly to very low tolerances, and establishes virtually perfect parallelism between the upper and lower surfaces of the seal assembly. A finishing process is characterized by lapping a seal assembly as an assembled unit with a lapper using gritted oil as a polishing medium.

REFERENCES:
patent: 5782678 (1998-07-01), Cesna et al.
patent: 6042688 (2000-03-01), Masumura et al.
patent: 6168506 (2001-01-01), McJunken
patent: 6454635 (2002-09-01), Zhang et al.
patent: 6645862 (2003-11-01), Wenski et al.
patent: 6736705 (2004-05-01), Benning et al.
patent: 2002/0052064 (2002-05-01), Grabbe et al.

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