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. 21, 2008
Filed:
Nov. 19, 2003
Patrick C. St. Germain, Iron River, WI (US);
Gerald K. Langreck, Phillips, WI (US);
Vernon C. Wickman, Port Wing, WI (US);
Ryan J. Carlson, Brule, WI (US);
Patrick C. St. Germain, Iron River, WI (US);
Gerald K. Langreck, Phillips, WI (US);
Vernon C. Wickman, Port Wing, WI (US);
Ryan J. Carlson, Brule, WI (US);
Specialty Systems Advanced Machinery, Inc., Iron River, WI (US);
Abstract
A web tensioning device utilizes a dancer arm which can be positioned by a controlled servo motor. In a preferred embodiment, the controller for the servo motor receives an input signal based on the acceleration (positive or negative) of the dancer arm and implements a torque component necessary to maintain predetermined web tension, for example, an applied torque component that changes the position of the dancer arm. The controller may also receive additional input signals indicative of the acceleration of the web itself.