Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Guide roll mounted for movement of its axis along arcuate...
Reexamination Certificate
2006-06-06
2006-06-06
Johnson, Vicky A. (Department: 3682)
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Guide roll mounted for movement of its axis along arcuate...
C474S148000
Reexamination Certificate
active
07056245
ABSTRACT:
A belt driving apparatus has a motor for generating the driving force, a toothed driving pulley rotating by the driving force, an endless toothed belt wound on the pulley, wherein a first surface of the toothed belt has teeth corresponding to teeth of the pulley and a second surface of the toothed belt is substantially smooth, an auxiliary roller for holding the toothed belt in a gap defined by the pulley and the auxiliary roller, a roller holding unit for holding the pulley and the auxiliary roller to be able to respectively rotate on axes of the pulley and the auxiliary roller and maintaining the gap between the pulley and the auxiliary roller and an urging member for urging the roller holding unit in a direction to the toothed belt around the pulley in order for the auxiliary roller hold by the roller holding unit to provide a tension to the toothed belt.
REFERENCES:
patent: 5991575 (1999-11-01), Okiyama et al.
patent: 6485207 (2002-11-01), Allen et al.
patent: 6628909 (2003-09-01), Monahan et al.
patent: 07-105592 (1995-04-01), None
patent: 2001-63866 (2001-03-01), None
patent: 2001063866 (2001-03-01), None
patent: 2001-334715 (2001-12-01), None
Copy of Chinese Office (with partial English translation) dated Oct. 1, 2005.
Koase Takashi
Miyashita Eiichi
Tsuda Masaaki
Yoshihisa Yasuhiko
Edwards Angell Palmer & & Dodge LLP
Johnson Vicky A.
Penny, Jr. John J.
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