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. 18, 1994
Filed:
Jul. 14, 1992
Applicant:
Inventor:
Wolfgang Schreiber, Stuttgart, DE;
Assignee:
C. & E. Fein GmbH & Co., Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16D / ; B25B / ;
U.S. Cl.
CPC ...
475153 ; 81473 ; 192150 ;
Abstract
A motor-driven machine with variable torque setting feature, especially a screwing machine with a torque-controlled switching-off feature, has a shaft which is driven by a motor via a transmission for driving a tool, and a setting ring for presetting a torque at which the shaft is to be disconnected from the transmission and/or the motor will be switched off. In order to enable approximately identical torque curves to be achieved for hard and for soft screwing applications, a clutch with a variable tripping torque is provided whose tripping torque can be adjusted via an indexing ring, which latter can be adjusted together with the setting ring.