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:
May. 12, 1987
Filed:
Feb. 11, 1985
Julia M Alston, Myrtle Bank, AU;
Coulter Systems Corporation, Bedford, MA (US);
Abstract
An electrostatic duplicator for forming color composite images and employing preformed electrostatic masters (color separated fixed toner images). The duplicator has a drum including four flat sides for mounting respective ones of the masters (4). The respective functional stations (charging, toning, transfer and cleaning) are positioned about said drum adjacent the respective flat sides. The drum is stationary during performance of the functions and automatically rotatable by an angle of 90.degree. in order to advance each of the electrostatic masters to the next station. Printing stock (to receive the transferred image) remains stationary until all of the component images of the composite image are received.