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. 16, 2007
Filed:
Jan. 10, 2005
Martin L. Anderson, Maple Lake, MN (US);
Martin L. Anderson, Maple Lake, MN (US);
National Carpet Equipment, Inc., Minneapolis, MN (US);
Abstract
A take-up roll forming apparatus for flexible strip material comprises a motor-driven shaft journaled for rotation on a frame where the shaft extends through a circular plate that is affixed to the shaft. A plurality of magnets is affixed to the plate in a predetermined pattern. A reel having a tubular core is adapted to slip over the motor-driven shaft and the reel also includes a circular end plate having magnets affixed thereto such that when the motor-driven shaft rotates, it tends to carry the reel with it due to the magnetic forces attracting the magnets on the motor-driven plate to the magnets on the end plate of the reel. As the strip material being wound accumulates on the reel, and the effective diameter of the roll of strip material increases to the point where the supply source cannot keep up with the speed at which the strip material is accumulating on the reel, a tension develops in the strip sufficient to overcome the magnetic attraction forces, such that the reel slips relative to the motor-driven shaft to accommodate the speed differential.