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:
Oct. 29, 2002
Filed:
Mar. 23, 2001
Gale W. Huson, Glenview, IL (US);
Hugh J. Zentmyer, Green Oaks, IL (US);
Illinois Tool Works, Inc., Glenview, IL (US);
Abstract
A portable film wrapping system comprises a push-cart having a vertical mast member and a film roll carriage movably mounted upon the vertical mast member. A lift cable connects the film roll carriage to a lift cable drum which is rotatably connected to a lift sprocket through a clutch mechanism, wherein the lift sprocket is rotatably connected to a drive wheel engaged with a floor surface over which the portable system is movable. When the clutch mechanism operatively connects the lift cable drum to the lift sprocket, the lift cable drum is rotated so as to wind the lift cable thereon and thereby continuously elevate the film roll carriage whereby spiral wrapping is achieved. When the clutch mechanism disconnects the lift cable drum from the lift sprocket, the lift cable is no longer wound upon the lift cable drum whereby the film roll carriage is maintained at a particular elevation so as to achieve concentric reinforcing wrapping.