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:
Jun. 23, 1998
Filed:
Oct. 23, 1996
Thomas K Hebert, Groveland, MA (US);
Mark E Tellam, Charlestown, MA (US);
Libor Krupica, Methuen, MA (US);
Peter Austin, Wilmington, MA (US);
Edward L Kelley, Lexington, MA (US);
Agfa Division, Bayer Corporation, Wilmington, MA (US);
Abstract
A media transport bridge is an integral media transport device within an internal drum laser imagesetter that transports media from an imaging area in the drum to an external processor or intermediate buffer. Five pairs of rollers transport the film over the drum. A first stage of the bridge includes a first pair of rollers driven independently so that the first stage is removable and replaceable with a take-up cassette if desired. A friction drive within the imagesetter is adaptable to drive either the first stage or the take-up cassette when installed. Upon removal of the first stage, an automatic adjustment of the bridge is performed to balance the pivotally mounted bridge. The media is moved into the bridge by a pair of drum rollers while the first stage is synchronized with the other four pairs of rollers in the bridge and monitored to keep a slack loop of media at the first stage rollers to eliminate perturbations in the media. A mechanical flag sensor changes state to slow and speed up the bridge rollers to maintain the slack loop.