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:
Dec. 26, 1989
Filed:
Feb. 16, 1988
Ronald J Duke, Miamisburg, OH (US);
Jack Beery, Centerville, OH (US);
The Mead Corporation, Dayton, OH (US);
Abstract
Apparatus for controlling tension in a movable web includes a frame supporting a web supply roll, and a torque motor connected to the supply roll. The web is supported along a web path. Web position is measured by a dancer roll biased against the web. A signal representative of the web position is generated and supplied to a control system, which receives the position signal and generates in response a torque signal representative of a torque value to be applied to the roll to cause the actual web position to equal a nominal position. The control system is connected to the torque motor to control the motor in accordance with the torque signal.