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:
Mar. 02, 1999
Filed:
Nov. 19, 1997
Applicant:
Inventor:
Ruediger Watzke, Neunkirchen am Sand, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279126 ; 408-6 ; 408 11 ;
Abstract
A chuck comprising a chuck body and monitoring electronics for detecting chuck faults fitted within the chuck body. A wireless transmission means is provided on the chuck body for transmitting signals from the monitoring electronics. The chuck has a dynamo having a housing fixed in the chuck body and a rotatable rotor having a mass for rotating relative to the housing when the chuck rotates due to an inertial moment of the mass to produce electric energy to power the monitoring electronics. Optionally provided is an electric energy storage means for storing energy from the dynamo and powering the monitoring electronics to provide for constant operation of the monitoring electronics.