Tennant Company

Don Durenberger

Michael Thomas Basham

Warren L Larson

Richard William Wellens

Mark J Fleigle

Barbara J Peterson, Legal Representative

Brent Hayden

Ron Lehman

A hard floor sweeping and scrubbing machine includes a mobile body comprising a frame supported on wheels for travel over a surface, a motorized cleaning head, a waste hopper, a hopper lift and a vacuum squeegee. The motorized cleaning head is attached to the mobile body and is configured to perform sweeping and scrubbing operations on the surface. The waste hopper is positioned on a rear side of the cleaning head and is configured to receive waste discharged from the cleaning head during the surface sweeping operations. The hopper lift is configured to raise the waste hopper from an operating position, in which the waste hopper is positioned adjacent the cleaning head, to a dumping position, in which the waste hopper is positioned to dump waste collected in the waste hopper. In one embodiment, the vacuum squeegee is attached to the hopper lift. Also disclosed is a method of cleaning a surface using embodiments of the machine.

Floor sweeping and scrubbing machine

Growing community of inventors

Dayton, MN, United States of America

Don Durenberger