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:
Oct. 01, 1996
Filed:
Apr. 29, 1992
Chang-sik Won, Kyunggi-do, KR;
Samsung Electron Devices Co., Ltd., Kyunggi-do, KR;
Abstract
A cathode ray tube relates to the improvement of its contact spring for grounding thermoelectrons remaining on a phosphor layer to an external anode, and the coupling structure of the contact spring. One end of the contact spring whose other end has a circular contact portion in contact with a graphite conductive layer of a funnel extends a predetermined length to form a contact portion in contact with an aluminum deposited layer of a panel. A contact spring coupling unit is formed at the center of the body of the contact spring and one side of the frame of a shadow mask frame assembly. The graphite layer formation process for electrically connecting the aluminum deposited layer and a stud pin can be eliminated, and the inferiority caused by choking of the electron beam passing holes of the shadow mask produced during welding the contact spring can be prevented which enhances productivity and quality of the end product.