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:
Aug. 17, 1999
Filed:
Jun. 09, 1997
Applicant:
Inventors:
G William Ragland, Dunwoody, GA (US);
Raymond E Ragland, Union, MO (US);
Christopher V Ragland, Duluth, GA (US);
Assignee:
ATD Corporation, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B21D / ; B21D / ;
U.S. Cl.
CPC ...
428594 ; 428603 ; 428604 ; 72363 ; 723792 ; 723796 ;
Abstract
A flexible corrugated multilayer metal foil structure comprising a stack of metal foil layers which are formed in corrugations extending across a stack of the metal foil layers, wherein all of the layers have the same corrugated pattern and shape as a result of the stack being shaped in corrugations or the layers being separately shaped in corrugations then nested into a stack. A portion of the corrugations of the stack of metal foil layers can be compressed to fold the layers together whereby the layers are interlocked together in overlapping relationship.