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:
Nov. 24, 1992
Filed:
Nov. 04, 1991
Joseph R Driear, Thiensville, WI (US);
Other;
Abstract
A portable conveyor having a pair of rear wheels which support the lower end of the conveyor and a pair of caster wheels are spaced forwardly from the rear wheels and are carried by a horizontal axle. An adjustable linkage interconnects the axle and the conveyor and a drive mechanism is operably connected to the linkage and acts to vary the angularity of the linkage and thus change the inclination of the conveyor. The drive mechanism includes a lead screw which is threaded to a nut that is operably connected to the conveyor. The lead screw carries a worm gear which is engaged with a worm that is journalled for rotation in a thrust bar housing attached to the linkage. A driven shaft is connected to the worm and is constructed to be connected to the drive shaft of a reversible, power-operated hand drill. Operation of the high speed drill acting through the worm gear and screw system will rapidly raise and lower the conveyor.