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. 31, 1981
Filed:
Apr. 27, 1979
Applicant:
Inventor:
John A van Raalte, Princeton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
33422 ; 313402 ;
Abstract
A display device includes an evacuated envelope having a plurality of support walls forming a plurality of parallel channels. A mosaic phosphor screen is deposited on a front wall of the envelope. A segmented shadow mask is mounted in spaced, parallel relation to the screen. A plurality of discrete mask segments are required to cover the screen. Each of the mask segments extends along substantially the full length of the channels. Mounting tabs extend from two oppositely disposed edges of the mask segment parallel to the major dimension of the channels.