Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reissue Patent
2006-01-31
2006-01-31
Till, Terrence R. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S353000, C055S337000, C055SDIG003
Reissue Patent
active
RE038949
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 (54) 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 (26) formed in the underside (24) of the nozzle and into the cyclonic airflow chamber (54). 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 (52) that defines the lower portion of the chamber (54). A main filter element (11) 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.
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Cipolla Mark E.
Latimer Brett A.
Stephens Paul D.
Thur Charles J.
Wright Michael F.
Fay Sharpe Fagan Minnich & McKee LLP
Royal Appliance Mfg. Co.
Till Terrence R.
LandOfFree
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