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:
Apr. 02, 1991
Filed:
Apr. 23, 1990
Luis F Antezana, Mercer Island, WA (US);
Other;
Abstract
A drive for a particle screening machine or the like in which a bearing support plate is attached to two side walls of the screening machine. A stationary bearing hub is mounted on the support plate in registration with an opening through the plate, and the hub receives and supports a bearing assembly which in turn journals a rotatably driven shaft. A pair of weights are positioned on opposite sides of the stationary support plate and are eccentrically mounted adjacent opposite ends of the shaft with their centers of mass equidistant from the geometric center of the rotatable shaft. The two weights are aligned such that an axis passing through the mass centers of the weights is parallel to the longitudinal axis of the shaft.