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:
Sep. 11, 1990
Filed:
Jun. 05, 1989
Joseph R Driear, Thiensville, WI (US);
Other;
Abstract
A portable conveyor assembly comprising an inclined conveyor having a lower end and an upper end. A pair of rear wheels support the lower end of the conveyor and a pair of caster wheels are spaced forwardly from the rear wheels and are suspended from a horizontal axle through vertical pivot shaft so that the caster wheels can freely rotate about the pivot shafts. An adjustable linkage interconnects between the axle and the conveyor, and a lead screw mechanism is operably connected to the linkage and acts to vary the angularity of the linkage and thus change the angle of inclination of the conveyor. A mechanism is associated with the linkage to prevent rotation of the axle and maintain the caster wheel pivot axes in a vertical attitude as the angle of inclination of the conveyor is changed.