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:
Mar. 26, 2002
Filed:
Aug. 17, 2000
Charles J Lob, Oconomowoc, WI (US);
John S Millman, Waukesha, WI (US);
Harken, Inc., Pewaukee, WI (US);
Abstract
A lifting device for lifting elongate objects such as watercraft from trailers or the like to overhead storage positions has a plurality of individual lines passing over a plurality of pulleys generally configured in a rectangular shape and supported from an overhead support such as a ceiling. First ends of each of the individual lines are attached to slings underlying the watercraft. Second ends of the individual lines pass through gathering means along a longitudinal axis. A multiple purchase block and tackle system also runs along the longitudinal axis, and has first and second ends attached by a hauling line. The individual lines each have second ends attached to the first end of the block and tackle system, so that as the block and tackle first end is moved each of the individual lines is moved simultaneously and an equal distance. Uniform, mechanically advantageous lifting of the watercraft is thereby achieved by manipulation of a single hauling line.