The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 29, 2008

Filed:

Apr. 08, 2005
Applicants:

John Joseph Mcdonald, Albion, IN (US);

Bruce Daniel Kingsbury, Fort Wayne, IN (US);

Inventors:

John Joseph McDonald, Albion, IN (US);

Bruce Daniel Kingsbury, Fort Wayne, IN (US);

Assignee:

Dura Global Technologies, Inc., Rochester Hills, MI (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B66D 1/00 (2006.01);
U.S. Cl.
CPC ...
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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