Endless belt power transmission systems or components – Friction drive pulley or guide roll – Including plural – coaxial – circumferential belt-receiving...
Reexamination Certificate
2011-08-09
2011-08-09
Kim, Sang (Department: 3654)
Endless belt power transmission systems or components
Friction drive pulley or guide roll
Including plural, coaxial, circumferential belt-receiving...
C474S170000
Reexamination Certificate
active
07993227
ABSTRACT:
A hub for use in a power transmission apparatus comprises cylindrical portion81and outer ring83including a plurality of tongue-like reinforcing portions83ceach protruded radially inward from the peripheral end of the corresponding one of the plurality of protrusions83b. When the distance from point C where the rear-side end surface of the cylindrical portion81and hub-side engaging portion85are connected with each other, to rear-side end surface D of reinforcing portions83cis given a, and the distance from rear-side end surface D of reinforcing portions83cto radially innermost front-side portion E is given b, distance b is less than one half of distance a.
REFERENCES:
patent: 2006/0084541 (2006-04-01), Nosaka et al.
patent: 2006/0217203 (2006-09-01), Nosaka et al.
patent: 2007/0270257 (2007-11-01), Tada et al.
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Office Action dated May 12, 2009 from the Japan Patent Office in the corresponding JP Application No. JP-A-2007-150247 (and English Translation).
Ishikawa Keiji
Nosaka Michiyasu
Suzuki Takayuki
Tabuchi Yasuo
Tada Yoshiki
Denso Corporation
Kim Sang
Posz Law Group , PLC
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