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. 30, 1999
Filed:
Feb. 10, 1997
Robert E Harr, Gillette, WY (US);
Other;
Abstract
A hoist for raising and lowering objects may be attached to a vehicle. The hoist includes a support column and a boom attached thereto; the boom can be raised and lowered by a hydraulic double action cylinder or otherwise. Both the support column and cylinder attach to a bracket, the bracket in turn being rotatably connected to a base unit so that the boom can be rotated as well as raised and lowered. The support column and boom can be adjusted with respect to one another and to the bracket, to balance loads and to adjust the reach of the hoist. Critical sections of the hoist, such as the portion of the boom that attaches to the support column, are reinforced with plates welded to the exterior of a rectangular tube. The connection between the support column and the bracket includes a nut to tension the column to the bracket. The base unit includes outriggers to support and stabilize the hoist, preferably three outriggers in a triangular configuration. Adjustments to the hoists can be made by inserting and removing penetrating pins through adjustment holes in the hoist members, which are quick and easy to make as well as strong and reliable.