Tire carrier disk clutch

Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum

Reexamination Certificate

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Reexamination Certificate

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11102129

ABSTRACT:
A torque limiting clutch includes a drive shaft having central rotational axis, a disk-shaped spring member secured to the drive shaft for rotation therewith, and a plate adjacent the spring member and having a plurality of grooves receiving bosses of the spring member. The spring member has a plurality bosses formed at an outer edge of the spring member that each form a generally V-shaped engagement surface. The grooves each form a generally V-shaped engagement surface engaging the bosses. A retaining clip retains the plate relative to the spring member to obtain a predetermined spring pretension. Engagement of the bosses with the grooves causes rotation of the plate upon rotation of the drive shaft when below a predetermined torque limit and deflection of the bosses out of the grooves prevents rotation of the plate upon rotation of the drive shaft when above the predetermine torque.

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patent: 2006/0169958 (2006-08-01), Steiner et al.
patent: 2007/0063174 (2007-03-01), Sauner et al.

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