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:
May. 25, 2010
Filed:
Feb. 19, 2008
William F. Gallagher, Stewartstown, PA (US);
Michael C. Doyle, Baldwin, MD (US);
Eric E. Hatfield, Jacobus, PA (US);
David C. Tomayko, Ellicott City, MD (US);
Daniel L. Krout, New Freedom, PA (US);
Tanika Malloy, Havre de Grace, MD (US);
William F. Gallagher, Stewartstown, PA (US);
Michael C. Doyle, Baldwin, MD (US);
Eric E. Hatfield, Jacobus, PA (US);
David C. Tomayko, Ellicott City, MD (US);
Daniel L. Krout, New Freedom, PA (US);
Tanika Malloy, Havre de Grace, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
An angle grinder is provided including a trigger assembly for selectively actuating the angle grinder. A particle separation assembly is provided for the removal of any dust, particle, or artifacts that may have entered into the housing of the angle grinder. A brush biasing system is also provided to ensure proper and efficient operation of the motor of the angle grinder. An overload monitoring system is included to monitor the loading on the motor. A clutch mechanism is also included to prevent overloading on the motor of the angle grinder. A gear wheel lock mechanism is also provided to prevent the wheel spindle from rotating during installation or removal of a grinding wheel on the wheel spindle. An anti-locking flange system is also included to prevent the over-tightening of the flanges and the grinder wheel during the operation of the angle grinder. A gear case labyrinth feature is also provided.