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:
Jun. 03, 1997
Filed:
Nov. 29, 1995
Norihiko Egami, Hirakata, JP;
Tatsuhiro Otsubo, Miki, JP;
Manabu Kakino, Uji, JP;
Masaru Nagaike, Hirakata, JP;
Takashi Ichiyanagi, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
A color selecting electrode for a color-picture tube, includes a rectangular frame-shaped frame having a pair of mutually-opposite long sides and a pair of mutually-opposite short sides, and a mask plate which is stretchedly supported on top surfaces of the frame while receiving a resilient spring force exerted from the frame, the long sides having a greater section modulus and a greater rigidity than the short sides. A method of manufacturing the color selecting electrode includes the step of welding, to the frame pressed inward by an equally-distributed force applied to the pair of long sides and the pair of short sides, the mask plate of which four sides are stretched outward by a distributed force which approximately counterbalances the equally distributed force.