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:
Aug. 25, 1987

Filed:

Aug. 19, 1986
Applicant:
Inventors:

James S Kelm, Milford, OH (US);

Arthur L Ludwig, Cincinnati, OH (US);

Harvey M Maclin, Cincinnati, OH (US);

Steven K Roggenkamp, West Chester, OH (US);

Thomas G Wakeman, West Chester, OH (US);

Assignee:

General Electric Company, Cincinnati, OH (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21K / ; B21D / ;
U.S. Cl.
CPC ...
2915 / ; 2915 / ; 29DI / ; 72379 ; 60757 ;
Abstract

A method of fabricating sheet metal panels and the article produced thereby. According to one form, the method of fabrication includes the steps of providing a panel of sheet metal, perforating the panel to provide a plurality of holes, forming the panel into a preselected curve about a longitudinal centerline, forming the leading edge portion of the panel into a front flange, forming a shoulder in the panel centered on the holes and extending perpendicularly from a surface thereof, bending an outer portion of the shoulder into a lip, and bonding the portions of the panel comprising the shoulder and lip.


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