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:
Sep. 03, 1996

Filed:

Jul. 18, 1994
Applicant:
Inventors:

Alexander Bajraszewski, Richmond, MI (US);

David H Dodds, South Lyon, MI (US);

Charles E Muessig, Novi, MI (US);

Vijay Nagpal, Westland, MI (US);

Assignee:

Ford Motor Company, Dearborn, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K / ;
U.S. Cl.
CPC ...
72 213 ; 72117 ; 72358 ;
Abstract

An extrusion assembly, which fits into a hydraulic press, includes an upper die plate and a lower die plate mounted to one another by die guide posts. A lead bar is coupled to the upper die plate at one end and to a mandrel at its other end and includes helical grooves on its surface that mate with helical protrusions on lead nuts. A die shell and insert are mounted concentrically with mandrel and receive a gear blank. As hydraulic press pushes lead bar axially toward gear blank, lead nuts impart a rotational motion to lead bar, which causes mandrel to move with a helical motion as it is pressed into and pulled out of gear blank.


Find Patent Forward Citations

Bajraszewski, Alexander. (1996). Extrusion forming of internal helical splines (U.S. Patent No. 5551270). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5551270

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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