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:
Oct. 10, 1995
Filed:
Jan. 10, 1994
Anthony J Hamline, Monticello, MN (US);
Steven L Boomgaarden, Rosemount, MN (US);
Gregory J Engel, Plymouth, MN (US);
Bryan L Christensen, Dayton, MN (US);
Tennant Company, Minneapolis, MN (US);
Abstract
In a floor scrubbing machine, side squeegees for control of water on the floor are mounted with linkages that include vertical pivots so the squeegees can swing from side to side. They are interconnected with a tie rod so they swing in unison. A rear squeegee swings to one side or the other when the machine turns due to friction with the floor. A push-pull cable is connected between the rear squeegee mounting linkage and the linkage of a side squeegee to cause the side squeegees to swing or steer during turns. This positions them to effectively control water on the floor during a turn, and reduces squeegee wear. An alternative to steering them with the rear squeegee is to steer them with a hydraulic cylinder plumbed into the machine's power steering system.