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:
Apr. 30, 2013
Filed:
Jan. 23, 2009
Applicants:
Rene Gumpert, Schoeneck, DE;
Horst Grossman, Huenfelden-Kirberg, DE;
Bruno Ruethers, Bad Camberg, DE;
Inventors:
Rene Gumpert, Schoeneck, DE;
Horst Grossman, Huenfelden-Kirberg, DE;
Bruno Ruethers, Bad Camberg, DE;
Assignee:
Black & Decker, Inc., Newark, DE (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D 3/068 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speed adjustment mechanism for a power tool is disclosed. The mechanism includes a support, a first toothed gear for rotation by means of an adjustment dial, and a second toothed gear rotatable by means of the first toothed gear and connected to a potentiometer which is connected to a speed control circuit. Limited movement of the first and second toothed gears relative to each other is possible to reduce transmission of impacts from the adjustment dial to the speed control circuit.