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:
Apr. 23, 2013
Filed:
Jun. 10, 2010
Ian Gell, Malmesbury, GB;
Jean-paul Mark Iles, Malmesbury, GB;
Giles Ashbee, Malmesbury, GB;
Thomas James Dunning Follows, Malmesbury, GB;
Stephen Benjamin Courtney, Malmesbury, GB;
Ian Gell, Malmesbury, GB;
Jean-Paul Mark Iles, Malmesbury, GB;
Giles Ashbee, Malmesbury, GB;
Thomas James Dunning Follows, Malmesbury, GB;
Stephen Benjamin Courtney, Malmesbury, GB;
Dyson Technology Limited, Malmesbury, GB;
Abstract
A tool for a surface treating appliance includes a main body connected to a conduit. The main body includes a first suction channel and a second suction channel in fluid communication with the first suction channel and located between the first suction channel and an outlet from the main body. In use, a relatively low vacuum is generated in the first suction channel which draws a first dirt-bearing fluid flow into the main body, and a relatively high vacuum is generated in the second suction channel, which draws a second dirt-bearing fluid flow into the main body and receives the first dirt-bearing fluid flow from the first suction channel. To maintain the pressure differences between the suction channels, the main body includes flexible surface engaging members located about the suction channels, and between the first suction channel and the second suction channel.