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:
Apr. 26, 1983
Filed:
Jun. 25, 1981
Applicant:
Inventor:
John W Fenton, Kailua, HI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81436 ;
Abstract
A tool assembly comprising a tool member receivable in a recess formed in a driven member. The tool member comprises a shank element, a plurality of tier elements integrally stacked coaxially thereon, and an apex element. Each of the tier and apex elements comprises first and second torque sections, each of which comprise first and second side surfaces subtending the same predetermined angle, a riser surface interconnecting the side surfaces, and a step surface. The recess in the driven member is characterized by member walls which are drivingly engagable with the side surfaces of the tool member.