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:
Mar. 23, 2010
Filed:
Sep. 23, 2003
John J. Toben, Cedar Rapids, IA (US);
Ashok M. Shah, Naperville, IL (US);
Richard F. Blum, Bolingbrook, IL (US);
Michael C. Borwig, Swisher, IA (US);
John J. Toben, Cedar Rapids, IA (US);
Ashok M. Shah, Naperville, IL (US);
Richard F. Blum, Bolingbrook, IL (US);
Michael C. Borwig, Swisher, IA (US);
Met-Coil Systems Corporation, Westfield, MA (US);
Abstract
A seam for ductwork has a male end portion integrally formed at a distal end of a duct wall and a female end portion integrally formed at another distal end of the duct wall. The female end portion includes a first fold and a second fold which define a female groove for accommodating the male portion. A distal end of the second fold is bent transverse to the female groove prior to the male portion being inserted into the female groove.