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. 04, 1979
Filed:
Aug. 03, 1978
Dennis A Burgess, Minneapolis, MN (US);
Burgess Industries, Inc., Minneapolis, MN (US);
Abstract
A rotary open-ended tubular drum of transparent material is supported within a housing by a pair of spaced support rolls and an endless flexible belt entrained over a pair of spaced apart feed rolls, the belt being generally opposed to the support rolls. The belt and drum are driven by a motor to feed a master sheet and a sensitized sheet to be printed, in face-to-face contact, between a drum engaging feeding flight portion of the belt and the portion of the drum engaged by the belt. An ultraviolet lamp is mounted in outwardly spaced relation to one end of the drum, and delivers ultraviolet light axially toward the interior of the drum. A stationary mirror within the drum is positioned to reflect ultraviolet light from the lamp toward an interior surface of the portion of the drum that is engaged by the feeding flight of the belt. A mask within the drum confines the reflected light to a given limited portion of the drum, and cooling fans are used to maintain the drum in a cool condition and to remove heated air from the housing.