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:
Aug. 28, 2001
Filed:
Dec. 14, 1999
Alan Weir Bucher, Lancaster, PA (US);
Frank Rowland Ragland, Jr., Lancaster, PA (US);
Thomson Licensing S.A., Boulogne Cedex, FR;
Abstract
The present invention provides a method of attaching a tension mask to a frame to achieve desired tensions at a plurality of locations across the mask, wherein the frame has two opposite sides between which the mask is to be attached. Specific forces are applied from each of a plurality of separate actuators at positions, along each of the two opposite sides of the frame, that affect the mask tensions respectively at the plurality of locations across the mask. Each of the actuators is individually controlled to apply a specific force to a frame side that is directly related to the desired mask tension required at a particular mask location. While the specific forces are applied by the actuators, the mask is attached to the two opposite sides of the frame. Thereafter, the forces on the sides are released.