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GB1206174A - Method and apparatus for use in repairing electron tubes - Google Patents

Method and apparatus for use in repairing electron tubes

Info

Publication number
GB1206174A
GB1206174A GB5692267A GB5692267A GB1206174A GB 1206174 A GB1206174 A GB 1206174A GB 5692267 A GB5692267 A GB 5692267A GB 5692267 A GB5692267 A GB 5692267A GB 1206174 A GB1206174 A GB 1206174A
Authority
GB
United Kingdom
Prior art keywords
chamber
tube
seal
piston
neck
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
GB5692267A
Inventor
Robert John Weideman
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB1206174A publication Critical patent/GB1206174A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J9/50—Repairing or regenerating used or defective discharge tubes or lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Landscapes

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

Abstract

1,206,174. Discharge tubes. SYLVANIA ELECTRIC PRODUCTS Inc. 14 Dec., 1967 [19 Dec., 1966], No. 56922/67. Heading H1D. A method of opening an evacuated electron tube having a glass envelope with a projecting seal 17, for example for replacing a defective electron gun assembly in a colour or monochrome cathode ray tube, comprises positioning the projecting seal 17 within a hermetic chamber 24, evacuating the chamber, opening the tube seal 17 to the ambient vacuum of the chamber and admitting an inert atmosphere into the chamber and tube as a gaseous fill to prevent contaminants getting into the open envelope. As shown the neck of a cathode ray tube is supported within the upper portion 25 of chamber 24 with seal 17 projecting into the lower portion of the chamber, the two parts of the chamber being connected by grooves 26 in shoulder 27 on which the neck of the tube rests. After evacuating the chamber 24, preferably to the same extent as the vacuum within the tube, the seal is opened, for example, by fluid operated piston 39 which is released by unscrewing the threaded shaft 45 attached to the piston from engagement with the wall 53; the piston then being impelled to break the seal by the pressure differential inside and outside the chamber 24. A retaining basket 59 in the lower portion of the chamber catches the pieces of the seal to prevent their being drawn into the tube. Slowly from a gas supply, the inert atmosphere is admitted, preferably into the upper portion 25 of the chamber against the neck of the tube to provide a baffle effect. The piston 39 may also be mechanically or solenoid operated.
GB5692267A 1966-12-19 1967-12-14 Method and apparatus for use in repairing electron tubes Expired GB1206174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60303566 US3404933A (en) 1966-12-19 1966-12-19 Method and apparatus utilized in repairing electron tubes

Publications (1)

Publication Number Publication Date
GB1206174A true GB1206174A (en) 1970-09-23

Family

ID=24413815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5692267A Expired GB1206174A (en) 1966-12-19 1967-12-14 Method and apparatus for use in repairing electron tubes

Country Status (2)

Country Link
US (1) US3404933A (en)
GB (1) GB1206174A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663862A (en) * 1970-04-30 1972-05-16 Rca Corp Method of rebuilding an evacuated electron tube
US3679284A (en) * 1970-08-21 1972-07-25 Rca Corp Method for filling an evacuated electron tube with gas to atmospheric pressure
US3757404A (en) * 1970-11-25 1973-09-11 Haefely & Cie Ag Emil Process and means for replacement of components and/or operating media in encapsulated installations
US3746419A (en) * 1971-09-07 1973-07-17 Morgan M Method and apparatus for rebuilding television picture tubes
JPS49113561A (en) * 1973-02-26 1974-10-30
US3981554A (en) * 1975-06-04 1976-09-21 Rca Corporation Method of air letting an evacuated cathode ray tube

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1920528A (en) * 1932-04-12 1933-08-01 Electric Lamp Patents Company Process of reclaiming electric lamps and bulbs
US2455317A (en) * 1945-08-03 1948-11-30 Nat Union Radio Corp Tube sealing machine
US3063777A (en) * 1960-05-02 1962-11-13 Rca Corp Method of rebuilding electron tubes

Also Published As

Publication number Publication date
US3404933A (en) 1968-10-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees