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. 11, 2003
Filed:
Oct. 20, 1999
Paul M. Pierce, Grand Haven, MI (US);
Steven John Albert Waldhauser, Niagara Falls, NY (US);
Tennant Company, Minneapolis, MN (US);
Abstract
A floor surface conditioning machine, typically a floor scrubbing machine comprising a support structure and supporting wheels, powered scrub brushes beneath the support structure, a brush carriage connecting the scrub brushes to the support structure, and a frictional motion dampener between the brush carriage and the support structure to dampen vibration of the brush carriage caused by the scrub brushes, this frictional motion dampener having a pair of friction members spaced from each other and astraddle a fixed member, and a pair of biasing springs biasing the pair of friction members against opposite sides of the fixed member. The fixed member includes a cam track and the friction members have a cam follower therebetween to follow the cam track during vertical movement of the brush carriage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile