Pulley assembly

Details Pulley assembly Pulley assembly

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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patent: 2004/0014540 (2004-01-01), Dell et al.
patent: 2004/0104090 (2004-06-01), Jansen et al.
patent: 2005/0250607 (2005-11-01), Jansen et al.
patent: 08-240246 (1996-09-01), None

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