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:
Feb. 07, 1984
Filed:
Jul. 30, 1981
William G Rodseth, Elgin, IL (US);
Illinois Tool Works Inc., Chicago, IL (US);
Abstract
A coupling arrangement includes a fastener driver head and a mating tool drive socket. The fastener driver head comprises a substantially circular disc-shaped base portion, a plurality of frustoconical portions integrally formed with the base portion and concentrically located within one surface thereof. A plurality of ribs are integrally formed with the base portion and alternating with the frustoconical portions and extend axially outwardly of both the base portion and the frustoconical portions. Each of the ribs extends from a line parallel with and spaced above a given diameter of the base portion to an outer periphery of said base portion. A mating drive tool has a recessed driving head or socket substantially complementary with the fastener head for closely interfitting engagement therewith.