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:
Mar. 19, 1991
Filed:
Aug. 29, 1989
Charles J Leonhart, Schaumburg, IL (US);
G B Meacham, Shaker Heights, OH (US);
nuArc Company, Inc., Niles, IL (US);
Abstract
An overhead exposure unit includes a light source for exposing sheets of light sensitive material carried on a supporting table. The light source is mounted at a fixed elevation above a floor or other surface and a support system is provided for moving the film support table up and down beneath the light source to provide the desired distance between the light source and the film for making plates or other photographic reproductions. The film support table is movable between a convenient working level and is raised or lowered to the selected level to provide a desired spacing or distance between the light source and the film while controlled light exposure takes place.