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:
Dec. 11, 2012
Filed:
Jan. 23, 2009
Michael P. Kunz, Hampstead, MD (US);
Gregg L. Sheddy, Shrewsbury, PA (US);
Katherine E. Phelan, Towson, MD (US);
Michael P. Kunz, Hampstead, MD (US);
Gregg L. Sheddy, Shrewsbury, PA (US);
Katherine E. Phelan, Towson, MD (US);
Black & Decker Inc., Newark, DE (US);
Abstract
A vacuum may include a housing defining a suction inlet opening and a debris chamber in communication with the suction inlet opening, a suction device disposed in the housing for providing a vacuum pressure to the inlet opening, a filter disposed in an airflow path between the suction inlet opening and the suction device, and a motor driving a device for disengaging debris from the filter. The device for disengaging debris from the filter may include at least one finger disposed on a belt or a rake. The device for disengaging debris from the filter may include a vibration device that induces a vibration in the filter. A controller can allow electric current to actuate the device for disengaging debris from the filter. The controller can have a plurality of operational modes.