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:
Jul. 31, 1979
Filed:
Dec. 08, 1977
Ali I Uzumcu, Elk Grove Village, IL (US);
Elmer J Thorsen, Jr, Wood Dale, IL (US);
Robert M Demkowicz, Cicero, IL (US);
Duo-Fast Corporation, Franklin Park, IL (US);
Abstract
An assembly of fasteners for use in a power fastener driving tool includes a number of fasteners having elongated shanks held in spaced apart relation by a pair of strips of frangible plastic material. Each strip includes a series of sleeves holding shanks of the fasteners and a series of spacer segments integrally joining the sleeves. The strip closer to the fastener heads is weaker than the strip closer to the fastener points. As an end fastener is driven from the assembly, the sleeve of the weaker strip associated with the next fastener to be driven is permitted to fracture, while the sleeve of the stronger strip remains intact.