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:
Dec. 28, 1982
Filed:
Jan. 13, 1981
Applicant:
Inventors:
Mike J Todd, Eagan, MN (US);
Jeffrey A Lee, Crystal, MN (US);
Assignee:
H. B. Fuller Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15 98 ; 75 4 / ;
Abstract
An apparatus for polishing a floor includes a rotated polishing pad suspended from a housing with a mechanism for maintaining full engagement of the surface of the pad with the floor. This mechanism includes a caster disposed within a centrally-located aperture in the pad and a device, such as a spring, connecting the caster to the housing which increasingly urges the caster and housing away from one another as they progressively approach one another.