Peripheral length adjusting apparatus and peripheral length...

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work

Reexamination Certificate

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C072S111000, C072S378000, C072S008500, C072S008900

Reexamination Certificate

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07013691

ABSTRACT:
In a peripheral length adjusting apparatus and a peripheral length adjusting method for an endless metallic ring, an endless metallic ring is wound on plural rollers, and an interval between the plural rollers is enlarged such that the endless metallic ring is stretched while the plural rollers are rotated, whereby the endless metallic ring is plastically deformed and a peripheral length of the endless metallic ring is adjusted to a target peripheral length. In the peripheral length adjusting apparatus and the peripheral length adjusting method, the peripheral length of the endless metallic ring before adjustment is measured, and the peripheral length of the endless metallic ring is adjusted to the target peripheral length by enlarging the interval between the rollers based on the measured peripheral length such that the peripheral length of the endless metallic ring at the time of adjustment is longer than the target peripheral length by a contraction amount due to elastic deformation of the endless metallic ring after adjustment.

REFERENCES:
patent: 3860803 (1975-01-01), Levine
patent: 6318140 (2001-11-01), Yamagishi et al.
patent: 6843090 (2005-01-01), Sato et al.
patent: 6854310 (2005-02-01), Narusaki et al.
patent: 1 008 401 (2000-06-01), None
patent: 1 092 488 (2001-04-01), None
patent: 1 393 833 (2004-03-01), None
patent: 11-290971 (1999-10-01), None
patent: 2001-105050 (2001-04-01), None
patent: WO 02/38302 (2002-05-01), None
German Office Action for corresponding German Patent Application No. 10 2004 006 284.6, Issued Aug. 12, 2005.
English Translation of German Office Action for corresponding German Patent Application No. 10 2004 006 284.6, Issued Aug. 12, 2005.

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