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. 20, 2005
Filed:
May. 06, 2004
Kenneth W. Bair, Akron, OH (US);
Richard C. Gibbs, Burton, OH (US);
Mark E. Reindle, Parma, OH (US);
Michael F. Wright, Stow, OH (US);
Kenneth W. Bair, Akron, OH (US);
Richard C. Gibbs, Burton, OH (US);
Mark E. Reindle, Parma, OH (US);
Michael F. Wright, Stow, OH (US);
Royal Appliance Mfg. Co., Glenwillow, OH (US);
Abstract
An upright vacuum cleaner (A) includes an upright housing section (B) and a nozzle section (C). A cyclonic airflow dirt and dust separating chamber () is defined in the upright housing section. A suction source (E) pulls air and entrained dirt; and dust through a main suction opening () in the underside () of the nozzle and into the cyclonic airflow chamber (). The cyclonic airflow chamber causes the suction airstream to travel in a cyclonic path such that the entrained contaminants are separated therefrom and deposited into a dirt container () that defines the chamber (). A main filter element (K) filters residual contaminants from the suction airstream between the chamber and the suction source. A final filter assembly (F) filters the suction airstream discharge by the suction source to ensure that the air discharge into the atmosphere is contaminant free.