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:
Oct. 12, 1993
Filed:
Dec. 03, 1992
Jack Evans, Dallas, TX (US);
Other;
Abstract
A ratchet nut runner is energized either manually or by a non-manual power source such as a battery, on-line electrical power or a pneumatic supply. A tubular body or housing, which contains speed-reducing and power-amplifying structures, serves also as the handle or hand grip for the device. A driven drive shaft which extends coaxially from the housing is connected to a head of the device through a pivot joint assembly. An important feature of the drive device is that the housing-enclosed drive shaft is pivotable from a non-manual power drive mode in which the drive shaft is coaxial with a tool-engaging stud or coupler, to a configuration in which the drive shaft extends normally of the coupler for rotation of the drive head manually. A switch which connects non-manual power to the drive shaft operates to cut off power when the device is disposed in a manual mode of operation.