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. 21, 1998
Filed:
Apr. 09, 1997
Applicant:
Inventors:
Assignee:
Aktiebolaget Electrolux, Stockholm, SE;
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15319 ; 153403 ; 15354 ;
Abstract
A self-guiding vacuum cleaner having a chassis (10) supporting a brush nozzle (50) facing the floor and having a nozzle opening (51) communicating with a chamber (16) in which a dust container (17) is arranged, the chamber being connected to the inlet side of a fan unit (33). The vacuum cleaner has a drive system for driving the vacuum cleaner on the floor, the drive system including at least two drive wheels (35) which are also arranged to guide the vacuum cleaner on the floor by relative motion of the wheels. The chassis (10) and the nozzle (50) are provided with cooperating means (48, 49) by means of which the nozzle (50) is such supported in the chassis for vertical movement.