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:
Mar. 18, 1997
Filed:
Jan. 19, 1996
Richard F Wulff, Maple Plain, MN (US);
Castex Incorporated, Holland, MI (US);
Abstract
A carpet maintainer comprising a mobile support having power drive for advancing the support over an underlying carpet surface, a housing on the support, a cleaning solvent vessel on the support, a discharge spray bar at the support underside for discharging cleaning solvent from the vessel onto an underlying carpet surface, a pair of powered, counter-rotational, elongated brushes at the support underside, adjacent each other, and transverse to the support, the spray bar being forward of the brushes for ejecting cleaning solution on the carpet followed by brush scrubbing and pile pick-up of the carpet, a debris hopper, a suction fan in the housing, an air and debris conducting conduit extending from the hopper to the suction fan, and a collector bag between the hopper and suction fan so that dirt and debris swept up by the brushes is deposited in the hopper or drawn by the fan into the collector bag.