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. 17, 2006
Filed:
Sep. 06, 2002
Steven L. Boomgaarden, Rosemount, MN (US);
Robert J. Erko, Apple Valley, MN (US);
Michael S. Wilmo, Crystal, MN (US);
Scott A. Kroll, Blaine, MN (US);
Steven L. Boomgaarden, Rosemount, MN (US);
Robert J. Erko, Apple Valley, MN (US);
Michael S. Wilmo, Crystal, MN (US);
Scott A. Kroll, Blaine, MN (US);
Tennant Company, Minneapolis, MN (US);
Abstract
A brush wear adjustment system for use in a powered street sweeper to provide for consistent sweeping performance where wear of rotary brush bristles is constantly sensed and the rotational speed of the rotary brush is automatically increased to maintain a desired bristle tip speed to maintain desirable sweeping attributes. Rotary brush support arm angular displacement is monitored in order for an electro-hydraulic controller to influence rotational speed of the rotary brush and to provide a readout relative to bristle length.