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:
Mar. 22, 1988
Filed:
Oct. 21, 1986
Applicant:
Inventors:
Lawrence P Zack, Minneapolis, MN (US);
Gary E Palmer, Roselle, IL (US);
Assignee:
Hako Minuteman, Inc., Addison, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ; A47L / ;
U.S. Cl.
CPC ...
15 98 ; 1523017 ; 15385 ; 51177 ;
Abstract
A pad driver assembly for a high speed floor burnishing machine includes a flexible or semi-rigid backing member with a pad beneath it and gripping projections for holding the pad in place. The backing member is provided with apertures so that when the pad assembly is driven at high rotational velocities beneath a shroud, air is drawn in through the apertures and forced radially outward in the pad, increasing the gripping action between the gripping projections and the pad, and also increasing the downward atmospheric pressure on the peripheral portion of the pad to promote increased polishing effectiveness.