Chain

Details Chain Chain

2005-04-19

2005-04-19

Koehler, Robert R. (Department: 1775)

Stock material or miscellaneous articles

All metal or with adjacent metals

Surface feature

C428S609000, C428S682000, C428S684000, C029S090700, C059S078000, C072S053000

Reexamination Certificate

active

06881500

ABSTRACT:
A chain including chain pins15, which connect an inner link plate and an outer link plate, are made of carburized or refined steel, and have the entire surface on which a large number of dimples17are provided which are formed through a primary shot peening performed at an arc height value of 0.35 to 0.8 mmA. Furthermore, dimples21with a size smaller than that of the dimples17are formed by applying a secondary shot peening performed at an arc height value smaller than that of a primary shot peening to the dimples17which have been subjected to the primary shot peening.

REFERENCES:
patent: 5980659 (1999-11-01), Kawaura et al.
patent: 55-44559 (1980-03-01), None
patent: 6-145785 (1994-05-01), None
patent: 10-30190 (1998-02-01), None
patent: 10-311381 (1998-11-01), None
Edited by Metal Surface Finishing Society of Japan, “Metal Surface Finishing Society of Japan Handbook”; 2ndedition; The Nikkan Kogyo Shinbun, Ltd. (Business and Technology Joural); Dec. 25, 1977; p. 521./Cited in the International Search Report.
International Search Report (2 pages), International Application No. PCT/JP02/11419, Feb. 2003.

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