Method for manufacturing coated article

Patent 7048972 Issued on May 23, 2006. Estimated Expiration Date:

June 17, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3367142

3579684

3673883

Pinion gear
Patent #: 3999445
Issued on: 12/28/1976
Inventor: Liautaud

Multilayer coating including disordered, wear resistant boron carbon external coating
Patent #: 4594294
Issued on: 06/10/1986
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Gear or rack-shaped tool for precision machining of tooth flanks particularly of hardened gears
Patent #: 4610577
Issued on: 09/09/1986
Inventor: Spensberger

Method for electrostatic coating threaded fasteners with a thermoplastic resin
Patent #: 4656051
Issued on: 04/07/1987
Inventor: Wojcik

Diamond coated fasteners
Patent #: 5096352
Issued on: 03/17/1992
Inventor: Lemelson

Plastic powder coated metal strip
Patent #: 5176755
Issued on: 01/05/1993
Inventor: Winkle, Sr., et al.

Gears and gear assemblies
Patent #: 5288556
Issued on: 02/22/1994
Inventor: Lemelson

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Inventors

Assignee

Koyo Seiko Co., Ltd.

Application

No. 10868758 filed on 06/17/2004

US Classes:

427/466, Nonuniform or patterned coating (e.g., ink jet printing, etc.)427/470, Superposed diverse or multilayer similar coatings applied427/475, Solid particles or atomized liquid applied427/486, Inorganic substrate427/358, Organic coating427/295, Metal base464/162, COUPLING FACILITATES RELATIVE AXIAL MOTION BETWEEN COUPLED MEMBERS470/17, Formed by heat treatment427/478Collection of off-target or fugitive coating material

Examiners

Primary: Parker, Fred J.

Attorney, Agent or Firm

Nixon & Vanderhye P.C.

Foreign Patent References

0 908 647 EP 04/01/1999
56-34153 JP 08/01/1981
2556739 JP 09/01/1996
2725168 B22 JP 12/01/1997
10-257727 JP 09/01/1998
10-296182 JP 11/01/1998
11-182636 JP 07/01/1999

International Class

B05D 1/04

Abstract

After forming a primary powder bed (i.e., powder layer) at a toothed portion of an article, such as a gear or a spline shaft, by electrostatic powder coating process, the powder bed/layer is removed from crests of teeth in the toothed portion by a specified thickness by scraping it off while sucking up the scraped powder. Next, the electrostatic powder coating process is performed again to form a secondary powder bed/layer over the entire surface of the toothed portion. Then, the primary and secondary powder beds/layers are melted or fused by induction heating to thereby form a coating film of a substantially uniform thickness.