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:
Jan. 03, 1978
Filed:
May. 13, 1976
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
2503 / ;
Abstract
An ionography chamber with spherically curved electrodes, in which an electrically insulating sheet is located between the spherically curved electrodes and covers one of these electrodes. The covered electrode has an uneven shape near its edge, and a gas is admitted into a space between the sheet and the other electrode. The uneveness of one of the electrodes is in the form of a groove running along the edge of the electrode, or a rib attached along the edge of the electrode. A pressure difference is generated for the purpose of pressing the sheet against the electrode with the uneven shape. The pressure difference causes the sheet to be tightly bonded to the respective electrode.