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. 29, 1980
Filed:
Dec. 22, 1978
Applicant:
Inventors:
Kei-Hsiung Yang, Schenectady, NY (US);
Jack D Kingsley, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
2503152 ;
Abstract
A method and apparatus for ion-valve radiography, utilizing a high-pressure gaseous material for conversion of differentially-absorbed X-radiation into electrostatic charge images, utilizes a closed chamber and a charge-image-receiving mesh structure movable between an ion source and ion detection means, to provide direct charge readout without requiring opening of the imaging chamber.