GB1107775A - Sealing means for an evacuated apparatus - Google Patents

Sealing means for an evacuated apparatus

Info

Publication number
GB1107775A
GB1107775A GB2866A GB2866A GB1107775A GB 1107775 A GB1107775 A GB 1107775A GB 2866 A GB2866 A GB 2866A GB 2866 A GB2866 A GB 2866A GB 1107775 A GB1107775 A GB 1107775A
Authority
GB
United Kingdom
Prior art keywords
replaced
jan
bridge
passage
evacuation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2866A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1107775A publication Critical patent/GB1107775A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/40—Closing vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Microwave Tubes (AREA)

Abstract

1,107,775. Discharge apparatus. GENERAL ELECTRIC CO. 3 Jan., 1966 [21 Jan., 1965], No. 28/66. Heading H1D. [Also in Division B3] Apparatus Comprising a hollow member 23 providing a passage 26 for evacuation purposes is sealed by melting a fusible support 32 holding a plug member 31 so that the member 31 and molten support material drop into an enlargement 28 at the outer end of passage 26. The apparatus shown is a voltage tunable magnetron, part 25 of member 23 forming a cold cathode. The ball 31 is of silver-plated copper and the bridge 32 is formed partly or completely of solder metal. The bridge 32 may be replaced by a metal coil (39) (Fig. 4, not shown) and the frusto-conical enlargement 28 may be replaced by an enlarged cylindrical bore (40) (Fig. 5, not shown). Evacuation and sealing are effected in a vacuum furnace. The button type electrical connectors 41, 42 and 43 may be replaced by elongated metal tabs (Figs. 6 and 7, not shown) to enable further connectors to be spot-welded thereto at points remote from the leads 17 and 19 to the thermionic emitter 22 and lead 18 to the control electrode 14.
GB2866A 1965-01-21 1966-01-03 Sealing means for an evacuated apparatus Expired GB1107775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42689365A 1965-01-21 1965-01-21

Publications (1)

Publication Number Publication Date
GB1107775A true GB1107775A (en) 1968-03-27

Family

ID=23692640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2866A Expired GB1107775A (en) 1965-01-21 1966-01-03 Sealing means for an evacuated apparatus

Country Status (2)

Country Link
DE (1) DE1539981A1 (en)
GB (1) GB1107775A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810539A (en) * 2015-01-21 2016-07-27 瓦里安医疗系统公司 Vacuum assemblies and methods of formation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810539A (en) * 2015-01-21 2016-07-27 瓦里安医疗系统公司 Vacuum assemblies and methods of formation
EP3048634A1 (en) * 2015-01-21 2016-07-27 Varian Medical Systems, Inc. Vacuum assemblies and methods of formation
US9831058B2 (en) 2015-01-21 2017-11-28 Varex Imaging Corporation Vacuum assemblies and methods of formation

Also Published As

Publication number Publication date
DE1539981A1 (en) 1969-09-04

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