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:
Sep. 04, 1990
Filed:
Mar. 14, 1989
Applicant:
Inventors:
Klaus Baumgarten, Eglharting, DE;
Kurt Schloeglmann, Taufkirchen, DE;
Assignee:
Messerschmitt-Boelkow-Blohm GmbH, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
74409 ; 74440 ;
Abstract
Backlash or play is avoided in a mechanical, self-adjusting gear drive having two sets of gears arranged in parallel to each other by one or more torsion springs effective between a driving shaft and a driven shaft. The gear sets form a closed gear train which contains the prestressed torsion spring (12) at any suitable point. After adjustment of the prestressing, the spring or springs eliminate any backlash throughout the whole gear train.