Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Condition responsive
Reexamination Certificate
2011-07-05
2011-07-05
Le, David D (Department: 3655)
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Condition responsive
C474S135000, C267S179000, C464S057000
Reexamination Certificate
active
07972231
ABSTRACT:
A pulley assembly having first and second members. The first member is capable of cooperating with a power transmission belt to drive/be driven by the belt. The first member is movable guidingly relative to the second member around a first axis. A coil spring has a length and a circumference and a first portion attached to the first member and a second portion attached to the second member so that a force tending to move the first/second member around the first axis is transmitted through the coil spring to the second/first member. At least one of the first and second members has a groove bounded by a surface into which the respective portion of the coil spring is fit. The respective portion of the coil spring is clamp fit within the groove.
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Ishida Tomokazu
Kawamoto Shigeru
Shimizu Takeo
Chau Terry
Le David D
Mitsuboshi Belting Ltd.
Wood Phillips Katz Clark & Mortimer
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