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:
Nov. 30, 1999
Filed:
Aug. 25, 1998
Donald F Durenberger, Dayton, MN (US);
Michael T Basham, Maple Grove, MN (US);
Joseph F D'Costa, New Hope, MN (US);
Tennant Company, Minneapolis, MN (US);
Abstract
A sweeping machine includes a chassis with wheels supporting the chassis on a surface to be swept. There is a brush mounted on the chassis for rotation in a direction to throw debris over the brush and into a debris hopper mounted on the chassis behind the brush. A flap assembly is positioned in front of the brush and closely adjacent thereto. The flap assembly has a flexible lip which is in contact with a surface being swept during its normal position. There is an operator control and a connection between the operator control and the flap assembly for raising and lowering the flap assembly between the normal position in which the flexible lip is in contact with a surface being swept, a first raised position in which the flexible lip has been raised substantially vertically a small distance above the surface being swept, and a second raised position in which the flap assembly has been raised and pivoted in a forward direction relative to the first position to permit debris to pass under the flap assembly to an area about the rotatable brush.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile