EP0426237A3 - Procedure for detecting television picture tubes with insufficient vacuum - Google Patents

Procedure for detecting television picture tubes with insufficient vacuum Download PDF

Info

Publication number
EP0426237A3
EP0426237A3 EP19900202833 EP90202833A EP0426237A3 EP 0426237 A3 EP0426237 A3 EP 0426237A3 EP 19900202833 EP19900202833 EP 19900202833 EP 90202833 A EP90202833 A EP 90202833A EP 0426237 A3 EP0426237 A3 EP 0426237A3
Authority
EP
European Patent Office
Prior art keywords
procedure
television picture
picture tubes
insufficient vacuum
detecting television
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.)
Granted
Application number
EP19900202833
Other languages
German (de)
Other versions
EP0426237A2 (en
EP0426237B1 (en
Inventor
Andre Bolz
Hermann Dr. Wehr
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.)
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0426237A2 publication Critical patent/EP0426237A2/en
Publication of EP0426237A3 publication Critical patent/EP0426237A3/en
Application granted granted Critical
Publication of EP0426237B1 publication Critical patent/EP0426237B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J9/42—Measurement or testing during manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
EP90202833A 1989-10-28 1990-10-24 Procedure for detecting television picture tubes with insufficient vacuum Expired - Lifetime EP0426237B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936015 1989-10-28
DE3936015A DE3936015A1 (en) 1989-10-28 1989-10-28 METHOD FOR SELECTING TELEVISION TUBES WITH VACUUM TOO LOW

Publications (3)

Publication Number Publication Date
EP0426237A2 EP0426237A2 (en) 1991-05-08
EP0426237A3 true EP0426237A3 (en) 1991-11-21
EP0426237B1 EP0426237B1 (en) 1994-05-18

Family

ID=6392473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90202833A Expired - Lifetime EP0426237B1 (en) 1989-10-28 1990-10-24 Procedure for detecting television picture tubes with insufficient vacuum

Country Status (4)

Country Link
US (1) US5083957A (en)
EP (1) EP0426237B1 (en)
JP (1) JPH03165422A (en)
DE (2) DE3936015A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602721B1 (en) * 1992-12-17 1996-09-04 Koninklijke Philips Electronics N.V. Method of curing a film
DE19526394A1 (en) * 1995-07-19 1997-01-23 Siemens Ag Vacuum detection system for vacuum switch tube
US6722184B2 (en) 2001-09-13 2004-04-20 Guide Corporation Apparatus and method for pressurized oxygen bulb curing and testing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1592364A (en) * 1921-04-26 1926-07-13 Western Electric Co Ionization manometer
US4052776A (en) * 1976-09-30 1977-10-11 Zenith Radio Corporation Method of spot-knocking an electron gun assembly in a color television picture tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU656126A1 (en) * 1976-06-23 1979-04-05 Рязанский Радиотехнический Институт Circuit for measuring pressure in sealed gas-discharge devices
JPS6273526A (en) * 1985-09-27 1987-04-04 Hitachi Ltd Method of measuring sealing gas pressure for fluorescent lamp
US4720652A (en) * 1987-01-20 1988-01-19 Cooper Industries, Inc. Sealed beam headlamp and method for testing its serviceability
JPS63261649A (en) * 1987-04-20 1988-10-28 Hitachi Ltd High-voltage processing method for cathode-ray tube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1592364A (en) * 1921-04-26 1926-07-13 Western Electric Co Ionization manometer
US4052776A (en) * 1976-09-30 1977-10-11 Zenith Radio Corporation Method of spot-knocking an electron gun assembly in a color television picture tube

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS Bd. 37, Nr. 1, 3. Januar 1964, MC.GRAW-HILL NEW YORK Seiten 89 - 91; FRED KOHLER: 'PRODUCTION TECHNIQUES TUBE IS OWN VACUUM GAGE ' *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 81 (E-719)(3429) 23. Februar 1989 & JP-A-63 261 649 (HITACHI LTD ) 28. Oktober 1988 *

Also Published As

Publication number Publication date
US5083957A (en) 1992-01-28
EP0426237A2 (en) 1991-05-08
EP0426237B1 (en) 1994-05-18
DE59005734D1 (en) 1994-06-23
JPH03165422A (en) 1991-07-17
DE3936015A1 (en) 1991-05-02

Similar Documents

Publication Publication Date Title
EP0332469A3 (en) Electron gun for color picture tube device
AU6448690A (en) Dual image video inspection apparatus
EP0424888A3 (en) Color cathode ray tube apparatus
GB8629552D0 (en) Television system & display tubes
GB8929143D0 (en) Improved advanced compatible television(actv)system
GB2236231B (en) Television receivers
EP0424946A3 (en) Color cathode ray tube apparatus
EP0410386A3 (en) Color picture tube
GB2234853B (en) Integrated thermal processing for kinescopes
HUT46466A (en) Vacuum tube containing electronoptical system
EP0276952A3 (en) Electron gun for colour picture tube
EP0426237A3 (en) Procedure for detecting television picture tubes with insufficient vacuum
IL91303A0 (en) System for displaying images on a cathode ray tube
GB2241371B (en) Video cameras
EP0426037A3 (en) Cathode ray tube
EP0456224A3 (en) Color cathode ray tube apparatus
SG50691G (en) Cathode ray tube and device for projection television provided with such a tube
EP0438139A3 (en) Color cathode ray tube
AU7421191A (en) Horizontal sweep circuit for a cathode ray tube device
AU1044688A (en) Arrangement for a picture tube
EP0436477A3 (en) Gettering device and system for a cathode ray tube
GB2257826B (en) Cathode ray tube
EP0416535A3 (en) Cathode for electron tubes
EP0264116A3 (en) Shadow-mask picture tube
DE3570801D1 (en) Television camera tube device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19920521

17Q First examination report despatched

Effective date: 19930625

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 59005734

Country of ref document: DE

Date of ref document: 19940623

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940801

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ITPR It: changes in ownership of a european patent

Owner name: CAMBIO RAGIONE SOCIALE;PHILIPS ELECTRONICS N.V.

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970930

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19971021

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19971219

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981024

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19981024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990803

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051024