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:
Nov. 17, 2015

Filed:

Dec. 06, 2011
Applicant:

Robert L. Middleton, Jr., Middleville, MI (US);

Inventor:

Robert L. Middleton, Jr., Middleville, MI (US);

Assignee:

Middleville Tool and Die Company, Middleville, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 39/03 (2006.01); B23P 11/00 (2006.01); B21D 5/01 (2006.01);
U.S. Cl.
CPC ...
B21D 5/015 (2013.01); Y10T 29/49334 (2015.01); Y10T 29/49622 (2015.01); Y10T 29/49826 (2015.01); Y10T 29/5124 (2015.01);
Abstract

The provided process creates a stamped tubular form with integral bracket by feeding a metal strip with a first thickness into a stamping tool containing a plurality of stations. Material is removed from the metal strip, leaving behind a tubular blank with an integral bracket. The tubular blank is formed by a forming station into a U-shaped form containing walls. The walls are closed in a closure station into a tubular shape wherein the edges of the walls are abutted and compressed, forming a tubular form which increases the metal thickness. This invention includes products formed by this process.


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