Glass manufacturing – Processes – Fusion bonding of glass to a formed part
Patent
1987-01-20
1988-08-23
Lindsay, Robert L.
Glass manufacturing
Processes
Fusion bonding of glass to a formed part
65 42, 313493, C03B 2320
Patent
active
047658207
ABSTRACT:
A process of producing a ceramic arc tube for a high-pressure metal-vapor discharge lamp, including a translucent ceramic tube, and at least one end cap which closes corresponding at least one end of the ceramic tube and which supports a discharge electrode. A green ceramic tubular body which gives the ceramic tube is formed of a first ceramic material, whereas at least one green end cap which gives the at least one end cap is formed of a second ceramic material of a same kind as the first ceramic material. Each green end cap has a cylindrical portion, and a flange portion which extends radially outwardly from one of opposite axial ends of an outer circumferential surface of the cylindrical portion. The cylindrical portion of each green end cap is inserted and positioned in a corresponding end portion of the green ceramic tubular body, such that the flange portion abuts on an end face of the corresponding end portion of the green ceramic tubular body. The thus assembled bodies are subjected to a firing operation to obtain the ceramic arc tube wherein crystal constitution of the ceramic tube and the at least one end cap are integrated with each other.
REFERENCES:
patent: 2204217 (1940-06-01), Herriger
patent: 2324385 (1943-07-01), Gustin et al.
patent: 3239323 (1966-03-01), Folweiler
patent: 3660063 (1972-05-01), Christopher
patent: 4162151 (1979-07-01), Bhalla
Maekawa Kouichiro
Naganawa Hitoshi
Lindsay Robert L.
NGK Insulators Ltd.
LandOfFree
Method of making ceramic arc tube for high-pressure metal-vapor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making ceramic arc tube for high-pressure metal-vapor , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making ceramic arc tube for high-pressure metal-vapor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-834013