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:
Nov. 27, 1990
Filed:
May. 16, 1989
Johannes H Raijmahers, Afferden, NL;
Stork X-Cel B.V., , NL;
Abstract
A drum used as a clamping roller for mounting a substrate, such as a sheet of paper, in a device in which the surface of said substrate is treated. The clamping roller is of use in a device such as an electrojet printer. The roller comprises a thin metal seamless sleeve having perforations; a coating is present on the sleeve having such form that a great variety of substrate formats may be held on the roller surface by creating a low vacuum inside the sleeve. For all formats the coating is of similar form. The thin sleeve is centered around the roller's axis by means of centering means having the form of end-discs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile