Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Patent
1995-10-02
1998-03-31
Bradley, P. Austin
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
445 43, 65 34, 65 54, H01J 940
Patent
active
057331626
ABSTRACT:
Improved methods of exhausting and combined exhausting and seasoning of x-ray tube envelopes for high performance x-ray system having a rotating anode therein which includes providing a glass tubulation having a diameter greater than about 20 mm then operatively connecting the glass tubulation to the x-ray tube envelope, providing a disk inside the glass tubulation, the disk having a smaller diameter than the glass tubulation, providing a vacuum to the glass tubulation; positioning heating means on the outside of the glass tubulation, heating the anode of the x-ray tube to a temperature temperatures inside the x-ray tube envelope of about 1500.degree. C., positioning the disk inside the glass tubulation proximate the position of the heating means on the outside of the glass tubulation, heating the glass tubulation proximate the disk to about 1300.degree. C., checking for sealing contact between the glass tubulation and the disk; and cooling the glass tubulation proximate the disk until the temperature of the heated area is below about 300.degree. C., thereby sealing the tubulation/envelope connection are disclosed.
REFERENCES:
patent: 1489099 (1924-04-01), Reynolds
patent: 1915361 (1933-06-01), Gustin
patent: 2946641 (1960-07-01), Wisner
patent: 4578043 (1986-03-01), Teshima et al.
Pending U.S. Patent Application Ser. No. 08/580,054, filed Dec. 22, 1995, by Thomas R. Raber et al., entitled "System and Method for Manufacturing X-Ray Tubes Having Glass Envelopes".
Benz Mark Gilbert
Jones William Joseph
Raber Thomas Robert
Zabala Robert John
Bradley P. Austin
Cusick Ernest G.
General Electric Company
Knapp Jeffrey T.
Pittman William H.
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