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. 01, 1982
Filed:
Oct. 25, 1977
Applicant:
Inventors:
Roger L Scriven, Gibsonia, PA (US);
Wen-Hsuan Chang, Gibsonia, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
220 / ; 220 / ; 220455 ; 220457 ; 358245 ; 427106 ; 4284256 ;
Abstract
An implosion-protected evacuated glass enclosure such as a cathode ray tube or an electric lamp is disclosed. The enclosure is made implosion resistant by depositing on the exterior surface thereof a polyurethane film. The mechanical properties of the polyurethane film result in outstanding glass retention properties when the evacuated glass enclosure implodes.