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, 1997
Filed:
Aug. 31, 1995
Steve Waldhauser, Niagara Falls, NY (US);
Richard F Wulff, Maple Plain, MN (US);
Castex Incorporated, Holland, MI (US);
Abstract
A floor burnisher having a frame, a peripheral housing, rear wheels and a front caster, the housing having an internal cylindrical wall defining a vertical chamber having an open bottom; a floating rotational drive motor in the chamber, and a rotational pad-driver underlying and connected to the motor to be rotationally driven thereby for mounting a flexible burnishing pad; suspension links and springs between the frame and drive motor suspending the drive motor, pad-driver and pad thereon in a floating fashion relative to the frame and housing, allowing limited vertical movement relative to the cylindrical wall; a flexible, peripheral, floor-engagement skin suspended from the peripheral housing shroud, and an air flow control sealing member between the motor and annular wall for preventing excessive air flow between the floating motor and wall into the burnisher wall chamber. In one embodiment, the air flow control member is a wiper mounted on the motor and slidably engaging the wall to slide up and down the wall. In a second embodiment, the air flow control member is a diaphragm between the motor and housing. In a third embodiment, the air flow control member is a bellows between the motor and housing.