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. 30, 2006
Filed:
Feb. 11, 2002
Michael F. Wright, Stow, OH (US);
Charles J. Thur, Broadview Hts., OH (US);
Mark E. Cipolla, Chardon, OH (US);
Brett A. Latimer, New Castle, PA (US);
Paul D. Stephens, Twinsburg, OH (US);
Michael F. Wright, Stow, OH (US);
Charles J. Thur, Broadview Hts., OH (US);
Mark E. Cipolla, Chardon, OH (US);
Brett A. Latimer, New Castle, PA (US);
Paul D. Stephens, Twinsburg, 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 said upright housing section. A suction source (E) pulls air and entrained dirt, dust, and other contaminants through a main suction opening () formed 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 lower portion of the chamber (). A main filter element () filters residual contaminants from the suction airstream between the chamber and the suction source. The main filter element is preferably made from high-density polyethylene porous filter media. A final filter assembly (F) filters the section airstream discharged by the suction source to ensure that the air discharged into the atmosphere is contaminant free, including those contaminants introduced into the airstream by the suction source itself.