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:
Aug. 22, 1978
Filed:
Feb. 19, 1975
Reinhold Stroezel, Leinfelden-Oberaichen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A drive is mounted in a housing and an output shaft is coupled with the drive to be rotated by the same and is connectable with a fastener to be driven. An arrangement is provided for deactivating the drive when the torque acting on the output shaft exceeds a predetermined selectable level. This arrangement includes a plurality of surface portions which surround the axis of rotation of the shaft and which each of which is continuously inclined radially and circumferentially of the shaft. A plurality of transmitting members is mounted for torque-dependent shifting in direction radially of the axis, and biasing springs urge the members radially outwardly against respective ones of the surface portions.