US Patent 7874954 Locking differential including resilient disc means

Patent 7874954 was granted and assigned to Eaton Corporation on January, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Eaton Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7874954

Date of Patent

January 25, 2011

Patent Application Number

11705901

Date Filed

February 14, 2007

Patent Primary Examiner

‌

Tisha D Lewis

Patent abstract

A locking differential includes a pair of clutch members that are biased together by a resilient disc and friction pack assembly toward a cross pin that extends diametrically across the central chamber of a cylindrical housing driven by the drive shaft of a vehicle, thereby to drive a pair of side gears and the output shafts splined thereto. The cross-pin extends within operating cam grooves contained in the adjacent faces of the clutch members, such that when the rotational velocity of one output shaft exceeds that of the other by a predetermined amount, the friction pack assembly of the faster shaft is operated to a non-compressed condition, thereby to disengage the over-running output shaft from the drive shaft. The resilient disc devices may be annular wave springs, or resilient disc springs.