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:
Jul. 16, 2019
Filed:
May. 16, 2011
Bastiaan Johannes DE Wit, Eindhoven, NL;
Fokke Roelof Voorhorst, Eindhoven, NL;
Johannes Tseard Van Der Kooi, Eindhoven, NL;
Sepas Setayesh, Eindhoven, NL;
Bastiaan Johannes De Wit, Eindhoven, NL;
Fokke Roelof Voorhorst, Eindhoven, NL;
Johannes Tseard Van Der Kooi, Eindhoven, NL;
Sepas Setayesh, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
A device for cleaning a surface () comprises at least one rotatable brush () which is provided with flexible brush elements () for contacting the surface () and picking up dirt particles () and liquid which are present on the surface () during a dirt pick-up period of each revolution of the brush (), and means for driving the brush (). A linear mass density of the flexible brush elements () is chosen such as to be lower than 50 g per 10 km, at least at tip portions, and an acceleration at tips of the brush elements () is set such as to be at least 3,000 m/sec, at least at some time during another period of each revolution of the brush () than the dirt pick-up period, namely a period in which the brush elements () are free from contact to the surface ().