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. 24, 1984
Filed:
Jan. 21, 1982
Erwin E Nordeen, St. Paul, MN (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A vacuum cleaner nozzle having a front suction inlet and a suction passage. A first brush is rotatably mounted to the nozzle at the suction inlet, and a second brush is rotatably mounted to the nozzle adjacent the first brush at the suction inlet. A first transfer passage extends from the suction inlet adjacent the first brush for passing material dislodged by the first brush to the suction passage. A second transfer passage extends from the suction inlet adjacent the second brush for transferring material from the second brush to the second transfer passage. In one form, the brushes are rotated by separate drive means, and in another form, one of the brushes is rotated by drive means and is coupled to the other brush for rotation thereof. The brushes, in the illustrated embodiment, rotate in opposite directions so that a brush is brushing forwardly relative to the movement of the vacuum cleaner and either of opposite directions of movement thereof. The transfer passages are arranged to open generally tangentially to the brushes for improved transfer of material thereinto. Portions of the walls of the structure are disposed to strip from the brushes material clinging to the periphery thereof at the entrance to the transfer passages.