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. 02, 1978
Filed:
May. 05, 1977
Peter Gumm, Glashutten, DT;
Horst Witte, Wiesbaden, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
Disclosed is a sheet conveying mechanism for an original to be reproduced in a reproducing apparatus, comprising means, including a rotatable drum having an air-permeable circumferential shell surface, for supporting the original; non-rotatable means disposed within the drum for dividing the space within the drum and the circumferential shell surface of the drum into three separate regions; means associated with the drum for selectively producing positive and negative pressure within each of the separate drum regions; means for exposing and scanning the original, positioned adjacent a first one of said separate drum regions; means, associated with the drum and being responsive to movement of the original around the drum, for controlling the pressure-producing means; and first and second means, cooperating with the drum and located adjacent the circumferential shell surface of the drum in the area of a second one of the separate drum regions, for transporting the original around the drum.