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. 22, 2008
Filed:
Apr. 17, 2003
David M. Allgeier, North Canton, OH (US);
Erik D. Lesco, Massillon, OH (US);
Jerry L. Balzer, North Canton, OH (US);
David C. Kumpf, Canton, OH (US);
David M. Allgeier, North Canton, OH (US);
Erik D. Lesco, Massillon, OH (US);
Jerry L. Balzer, North Canton, OH (US);
David C. Kumpf, Canton, OH (US);
Other;
Abstract
A vacuum cleaner includes a dirt separation system that has a dirt cup retaining a filter assembly having a screen element, an exit, and a filter element disposed between the screen element and the exit. A nozzle disposed in the dirt cup directs an airstream generally parallel to the surface of the screen element so that particles in the airstream are primarily separated by the screen element and, as the airstream ultimately travels towards the exit in the dirt cup, are secondarily separated by the filter element.