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. 29, 1994
Filed:
Nov. 19, 1992
Applicant:
Inventor:
Peter W Von Vett, Englewood, CO (US);
Assignee:
Windsor Industries, Inc., Englewood, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 18 ; 134-6 ; 134 42 ; 15 98 ; 15 491 ; 51177 ;
Abstract
A surface treating tool such as a floor polisher and method and apparatus for detecting the absence of a pad or other surface treating member on the tool. In the preferred manner of operation, the invention monitors the amperes being drawn by an electric motor rotating the pad support. If the amperage draw during initial start up of the tool is less than a predetermined amount (representing the absence of a pad on the support, the tool is prevented from lowering the padless support into potentially damaging contact with the floor or other surface.