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:
Jan. 08, 2013
Filed:
May. 26, 2011
Paul K. Trautner, Baltimore, MD (US);
Phillip T. Miller, Phoenix, MD (US);
William F. Gallagher, Stewartstown, PA (US);
Michael C. Doyle, Baldwin, MD (US);
Paul K. Trautner, Baltimore, MD (US);
Phillip T. Miller, Phoenix, MD (US);
William F. Gallagher, Stewartstown, PA (US);
Michael C. Doyle, Baldwin, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
The present invention is directed to an airflow generation and particle dispersion arrangement for a power tool (e.g., an angle grinder). The arrangement includes a motor, an airflow generation assembly, and a particle dispersion assembly. The airflow generation assembly includes a fan driven by the motor. When engaged, the driven fan generates an airstream that is drawn through the power tool. The particle dispersion assembly includes a passive fan that is not driven by the motor, but instead is driven by the airstream. In operation, the passive fan generates centrifugal and mechanical forces sufficient to remove particles from intake air passing through the particle dispersion assembly.