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:
Sep. 06, 1988
Filed:
Mar. 20, 1987
Applicant:
Inventor:
Donald L Olson, Minneapolis, MN (US);
Assignee:
Tennant Company, Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51174 ; 51328 ;
Abstract
A machine and method for removing coatings and/or membranes from the surface of a floor or the like, which may be uneven, and also conditioning a floor so that it more readily acccepts a new coating. The machine takes the form of a driver member or element which may be abrasive or which may apply or work free abrasive particles against a floor with a controlled application rate that may be related to floor conditions and travel speed of the machine over the surface.