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:
Aug. 22, 2017
Filed:
Apr. 04, 2014
Grey Technology Limited, a British Corporation, Worcester, GB;
Nicholas Gerald Grey, Spetchley, GB;
GREY TECHNOLOGY LIMITED, , GB;
Abstract
A vacuum cleaner is described, and in particular a battery-powered vacuum cleaner including a rotatable brush. The vacuum cleaner has a suction head adapted to be moved across a surface to be cleaned, the suction head having a leading end and a trailing end, the suction head having: a rotatable brush, the rotatable brush being located in a brush chamber at the leading end of the suction head, the brush chamber having an opening through which a part of the rotatable brush projects, the opening and the rotatable brush spanning substantially the full width of the suction head; suction means adapted to create a flow of air into the suction head during use; a dirt-collection chamber; a filter located downstream of the dirt-collection chamber; a primary air flow duct connecting the brush chamber to the dirt-collection chamber and through which air can flow into the dirt collection chamber during use, a secondary air flow duct connected to the dirt-collection chamber and through which air can flow into the dirt collection chamber during use, the secondary air flow duct comprising a length of hose terminating in an inlet nozzle.