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:
May. 26, 2015
Filed:
Mar. 18, 2009
David W. Wood, Maple Plain, MN (US);
David W. Wood, Maple Plain, MN (US);
Nilfisk-Advance, Inc., Plymouth, MN (US);
Abstract
A squeegee assembly for wiping a surface comprises a front flexible blade having an outer surface, an inner surface and a floor engaging edge, a rear flexible blade having an outer surface, an inner surface and a wiping edge, a support upon which the front and rear flexible blades are mounted, a vacuumized chamber bounded by the front blade, rear blade, support, and the surface, and a suction tube coupled to the support and positioned between the front and rear flexible blades. The rear flexible blade includes at least one aperture extending between the outer surface and the inner surface and spaced from the wiping edge.