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. 18, 2007
Filed:
Apr. 12, 2005
Uday S. Deshpande, Baltimore, MD (US);
Bhanuprasad V. Gorti, Abingdon, MD (US);
Shailesh P. Waikar, Cockeysville, MD (US);
William F. Hilsher, Parkville, MD (US);
Uday S. Deshpande, Baltimore, MD (US);
Bhanuprasad V. Gorti, Abingdon, MD (US);
Shailesh P. Waikar, Cockeysville, MD (US);
William F. Hilsher, Parkville, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
A hand held orbital sander has a housing having an electronically commutated motor disposed therein and an orbit mechanism disposed beneath the housing. A motor controller is coupled to the motor. The motor controller changes the speed of at which it runs the motor from an idle speed to a sanding speed upon the motor speed dropping from idle speed to an idle speed threshold value and changes the speed at which it runs the motor from sanding speed to idle speed upon the motor speed increasing from sanding speed to a sanding speed threshold value. The sander may have a mechanical brake that brakes the orbit mechanism and the motor controller also dynamically brakes the motor.