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.
Patent No.:
Date of Patent:
Apr. 26, 2005
Filed:
May. 23, 2001
Dale K. Bell, Ortonville, MI (US);
Dale K. Bell, Ortonville, MI (US);
Meritor Heavy Vehicle Technology, LLC, Troy, MI (US);
Abstract
An apparatus and method of forming a differential assembly is provided that includes the steps of providing a ring gear, which is preferably produced by a precision forging process. The differential case is cast about a portion of the ring gear to secure the ring gear to the differential case and form the differential assembly. Preferably, the ring gear includes projections that are embedded in the differential case during the casting process to enhance the connection between the ring gear and the differential case. In this manner, the ring gear may be constructed from a forged steel and the differential case may be constructed from ductile iron while eliminating the fasteners of the prior art.