Tennant Company

Anthony John Hamline

Robert A Geyer

Steven L Boomgaarden

Gregory J Engel

Bryan L Christensen

Terence Alan Peterson

Christopher K Pearce

Richard Allen Nelson

Ian Taylor

A squeegee mount and assembly which cooperate to permit both pivotal and linear motion of the squeegee assembly relative to the machine frame. To avoid contact with a stationary object, the squeegee assembly can be both pivoted and linearly moved relative to the surface maintenance machine, thereby preventing damage to the squeegee assembly and/or the surface maintenance machine. The squeegee mounting assembly includes a mounting arm, a subframe, a return spring coupled between the subframe and the frame, and a stop. A squeegee assembly comprised of a squeegee blade, an arcuate squeegee blade holder, and a link which couples the blade holder to the squeegee mounting assembly. A guard rail is also coupled to one end of the blade holder and rotatively coupled along another end to the frame.

Tool mounting assembly for a surface maintenance machine

A device and method of use for cleaning a ground surface with pressurized cleaning solution is disclosed. The device includes a transportable deck having at least a first chamber and a second chamber, each first and second chamber being in open communication with the surface, said first chamber having a nozzle for directing a pressurized cleaning solution toward the ground surface, and said second chamber having a vacuum outlet for removing cleaning solution and debris from the surface. Additional embodiments of the present invention may include a solution recycling system for reusing recovered solution.

Brushless scrub head for surface maintenance

The present invention provides an adjustment mechanism and methods for adjusting the alignment of a powered cylindrical brush mounted to a surface maintenance vehicle relative to a surface to be maintained or cleaned by the vehicle. The device is preferably disposed upon the idler-side of a powered rotating cylindrical brush assembly and the adjustment preferably occurs via use of an eccentric cam member providing a range or motion, or pivot location, through or about which the idler-side mounting location of the cylindrical brush may be adjusted to improve contact with the surface. The present invention enables such adjustment without decoupling the rotating brush from its couplings (both supportive and rotational coupling), and any coupling to a drive mechanism for driving the rotating brush into rotation. The rotating brush so adjusted will benefit from improved mechanical cooperation between the bristles of the brush and the surface to be cleaned. If at least two counter-rotating cylindrical brush assemblies are disposed on a single surface maintenance vehicle each may be adjusted with respect to the surface and to the other brush disposed therein. Another aspect of the present invention is to allow a single operator to perform brush taper adjustments without disassembly of any connecting components for operating the rotating cylindrical brush assembly during cleaning operations, including even the side covers or other brush mounting components and any drive gear associated thereto. The apparatus and methods of the present invention are intended to readily accommodate rapid adjustment in the course of surface cleaning operations by a single manual operator or technician preferably either by hand or via use of a single rudimentary adjustment instrument operating upon a single adjustable mounting location to change the state of the single adjustable mounting location from a partially-released state to a fully-coupled state.

Cylindrical brush idler-side taper adjustment assembly

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.

Growing community of inventors

Saint Paul, MN, United States of America

Anthony John Hamline