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:
Jul. 07, 1992
Filed:
Mar. 11, 1991
Gary E Palmer, Roselle, IL (US);
Alexander Buziuk, Schiller Park, IL (US);
Rick McLeod, Lake In The Hills, IL (US);
Ronald J Smith, Carol Stream, IL (US);
Hako Minuteman, Inc., Addison, IL (US);
Abstract
Apparatus for adjusting the height above the floor of a plate to which is attached a pad in a rotary floor machine to accommodate pads having a range of thicknesses includes a yoke disposed about the generally vertical support shaft of a caster positioned within a centrally-located aperture in the pad in contact with the floor. The yoke is also disposed about and supports a rotational drive arrangement coupled to the plate and includes a ring bearing to facilitate rotational displacement of the drive arrangement within the yoke. One end of the yoke is pivotally coupled to the machine's housing, while a manually adjustable coupler attaches a second, opposed end of the yoke to the housing to permit raising and lowering of the yoke in a pivoting manner. Disposed within the yoke and engaging the rotational drive arrangement is a gimbal-like suspension arrangement which maintains the drive arrangement vertical (perpendicular to the floor) and the pad plate horizontal as the yoke is pivotally raised and lowered to accommodate pads having a range of thicknesses. By maintaining the pad plate horizontal regardless of its height above the floor, uniform contact with the floor over the entire lower surface of the pad is ensured.