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. 12, 1979
Filed:
Aug. 12, 1977
William E Roberts, Palos Verdes Penn., CA (US);
AM International, Inc., Los Angeles, CA (US);
Abstract
A microfiche duplicator exposure station where a copy sheet lies facewise over a master while an elongated lamp shines light through the master to expose the copy sheet. A shutter that controls exposure, includes two plates lying over the lamp and a solenoid that quickly pivots the plates to positions beside opposite ends of the lamp to allow light from the lamp to reach the microfiche. The plates have mirror surfaces extending at an incline of about 60.degree. from the vertical when the plates are at opposite ends of the lamp, to shine light onto opposite ends of the microfiche, to thereby compensate for low illumination thereat produced by an elongated lamp.