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. 21, 1978
Filed:
Oct. 06, 1975
Applicant:
Inventors:
Karl Heinz Steigerwald, Starnberg, DT;
Dieter Konig, Munich-Neuaubing, DT;
Wilhelm Scheffels, Germering, DT;
Rudolf Speck, Olching, DT;
Wolfgang Stamm, Puchheim, DT;
Assignee:
Steigerwald Strahltechnik GmbH, Munich, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313348 ; 313146 ; 313237 ; 250398 ;
Abstract
A beam splitter for electron beam machines with a beam splitter grid which is to be set crossways to the beam and which has a row of cross-pieces running next to one another with uniform spaces for shading the portions of beam striking it, where the cross-piece materials is replaceable in operation by cross-piece material not already acted on by the beam.