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. 06, 1999
Filed:
Mar. 03, 1997
Applicant:
Inventors:
Rene Principe, Munchwilen, CH;
Walter Koller, Munchwilen, CH;
Assignee:
Diversey Lever, Inc., Plymouth, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
153403 ; 15320 ;
Abstract
An apparatus for cleaning a surface is described. The apparatus has a frame and a cleaning member with a brush that rotates on the frame to clean a floor. The apparatus also has main support wheels drive unit, and an auxiliary drive unit with an auxiliary wheel to improve the mobility of the apparatus.