Electric lamp or space discharge component or device manufacturi – Apparatus – Including means to establish an electric space discharge
Reexamination Certificate
2006-06-06
2006-06-06
Patel, Ashok (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Apparatus
Including means to establish an electric space discharge
C445S069000, C425S449000, C065S374130
Reexamination Certificate
active
07056181
ABSTRACT:
A discharge lamp has a discharge vessel enclosing a discharge space. The discharge vessel is provided with a ceramic wall which is formed through sintering of a body shaped by sludge molding. The sludge molding process uses the steps of: injecting an outer porous mold with sludge, precipitating the sludge against the outer mold, removing the excess sludge, removing the outer mold, and pre-firing of the molded body. The sludge is injected into the outer mold by means of hollow needles which extend into the hollow mold.
REFERENCES:
patent: 4418027 (1983-11-01), Massoud
patent: 4789140 (1988-12-01), Lirones
patent: 4884959 (1989-12-01), Ito et al.
patent: 4999145 (1991-03-01), Thibodeau
patent: 5151275 (1992-09-01), Ito et al.
patent: 5494432 (1996-02-01), Coggins et al.
patent: 5700409 (1997-12-01), Corry
patent: 6190151 (2001-02-01), Hunt
patent: 2 315 875 (1974-10-01), None
patent: 33 15 092 (1983-10-01), None
patent: 0 926 106 (1999-06-01), None
patent: 1 001 452 (2000-05-01), None
patent: 04371802 (1992-12-01), None
patent: WO9962103 (1999-12-01), None
Patent Abstracts of Japan, Publication No. 59-184450, Oct. 19, 1984, “Light-Transmitting Alumina Tube”, to Toshiba Ceramics Co., Ltd.
Patent Abstracts of Japan, Publication No. 10-188893, Jul. 21, 1998, “Ceramic High Pressure Mercury Discharge Lamp For Liquid Crystal Back Light”, to Ushio Inc.
Patent Abstracts of Japan, Publication No. 02-214605, Aug. 27,1990, “Casting Method And Core For Casting”, to Ishikawajima Harima Heavy Ind. Co., Ltd.
Patent Abstracts of Japan, Publication No. 01-269505, Oct. 27, 1989, “Cast Molding Method For Closed-End Molded Product And Molding Cast Mold”, to Iwao Jiki Kogyo KK.
Koninklijke Philips Electronics , N.V.
Patel Ashok
LandOfFree
Method of manufacturing a lamp 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 manufacturing a lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a lamp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3710465