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:
Apr. 22, 1997
Filed:
Dec. 11, 1995
von Ardenne Anlagentechnik GmbH, Dresden, DE;
Abstract
The invention which relates to a device for the generating of electron beams with a vacuum chamber, in which a massive cathode (10) is arranged with a wire cathode (14) arranged above and a aperture anode (17) below the massive cathode (10) and whom below the aperture anode (17) focusing and/or deflecting magnet arrangements are provided which direct an electron beam (23) emitted by the massive cathode (10) and accelerated by the aperture anode (17) to a processing location (22), has the basic task to make the power of such devices variable over a large range using simple mechanical means. According to the invention the task is solved by arranging the aperture anode (17) rigidly and the massive cathode (10) and the wire cathode (14) axially movable within the vacuum chamber (1). For the movements of the massive cathode (10) and the wire cathode (14) contact means are provided which follow their movements and lead to the outside of the vacuum chamber (1). In addition for the axial movement of the massive cathode (10) a motion means is provided connected with the cathode (Figure).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile