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:
Dec. 02, 2003

Filed:

Oct. 04, 2001
Applicant:
Inventors:

John E. Meaney, Bonita, CA (US);

Thomas J. Liebig, Chula Vista, CA (US);

Raymond R. Listak, Chula Vista, CA (US);

Robert B. Leholm, Santee, CA (US);

Jeffrey K. Switzer, San Diego, CA (US);

Peter H. Ellis, Poway, CA (US);

Jack D. Beyer, Escondido, CA (US);

Assignee:

Rohr, Inc., Chula Vista, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 1/304 ;
U.S. Cl.
CPC ...
B21D 1/304 ;
Abstract

A machine and method for corrugating a metal foil strip utilizes an enclosure defining a chamber and a controllable heat source for heating the chamber. The chamber may optionally include at least one gas that is also heated by the heat source. At least one tool set received in the chamber forms corrugations in the metal foil strip. Foil entry feeder elements supply and guide the metal foil strip from outside the chamber into the chamber and to the tool set. A drive for the tool set is mounted outside the chamber and coupled to the tool set to actuate the tool set. Foil exit delivery elements guide the strip from the tool set and out of the chamber. Where required to prevent oxidation of the foil strip, a source supplying an inert gas to the chamber at a controlled rate is used.


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