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. 22, 1977
Filed:
Mar. 12, 1976
Jurgen Dolves, Kiel, DT;
Dieter Grieger, Kiel, DT;
Dr. -Ing. Rudolf Hell GmbH, Kiel, DT;
Abstract
The invention relates to a method for the production of a printing form by the scanning point-by-point and line-by-line of an image pattern along successive cylindrical peripheral image lines and engraving cavities along corresponding cylindrical peripheral engraving lines by an engraving member having an engraving needle as a cutting tool, and includes the steps of generating image signals from the image pattern from along one of the cylindrical peripheral image lines, and engraving a number of cavities at the beginning of an engraving line to depths substantially less than the depths defined by the corresponding image signals. Then the other cavities of said engraving line are engraved to depths which are defined by the nominal values. Subsequently the incomplete cavities of said engraving line are re-engraved in accordance with the corresponding image signals. Another object of the invention is to control the movement of said engraving needle into an engraving position for engraving cavities and into a rest position after an engraving line has been completed.