GB1230891A - - Google Patents

Info

Publication number
GB1230891A
GB1230891A GB1230891DA GB1230891A GB 1230891 A GB1230891 A GB 1230891A GB 1230891D A GB1230891D A GB 1230891DA GB 1230891 A GB1230891 A GB 1230891A
Authority
GB
United Kingdom
Prior art keywords
flange
wall portion
strengthening rib
making
metal
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
Other languages
English (en)
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 filed Critical
Publication of GB1230891A publication Critical patent/GB1230891A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks
    • 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
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0722—Frame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0766—Details of skirt or border
    • H01J2229/0772—Apertures, cut-outs, depressions, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
GB1230891D 1969-04-02 1969-09-10 Expired GB1230891A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82279269A 1969-04-02 1969-04-02

Publications (1)

Publication Number Publication Date
GB1230891A true GB1230891A (enrdf_load_stackoverflow) 1971-05-05

Family

ID=25236989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1230891D Expired GB1230891A (enrdf_load_stackoverflow) 1969-04-02 1969-09-10

Country Status (7)

Country Link
US (1) US3639799A (enrdf_load_stackoverflow)
JP (1) JPS4923619B1 (enrdf_load_stackoverflow)
BE (1) BE748376A (enrdf_load_stackoverflow)
DE (1) DE1947433A1 (enrdf_load_stackoverflow)
FR (1) FR2042025A5 (enrdf_load_stackoverflow)
GB (1) GB1230891A (enrdf_load_stackoverflow)
NL (1) NL7004423A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238423A (en) * 1989-11-02 1991-05-29 Samsung Electronic Devices Shadow mask for a cathode-ray tube
GB2240659A (en) * 1990-01-31 1991-08-07 Samsung Electronic Devices Shadow mask assembly
US5189334A (en) * 1989-11-02 1993-02-23 Samsung Electronic Devices Co., Ltd. Cathode ray tube having shadow mask

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2151051B1 (enrdf_load_stackoverflow) * 1971-09-03 1974-10-25 Hitachi Ltd
US4100451A (en) * 1974-08-19 1978-07-11 Zenith Radio Corporation Face panel assembly for a color cathode ray tube
US3942064A (en) * 1974-11-14 1976-03-02 Westinghouse Electric Corporation Reinforcing ring structure for a shadow mask
DE2538087C2 (de) * 1975-08-27 1986-09-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren zum Herstellen des Farbtripelpunktrasters des Bildschirms einer Farbfernsehröhre
DE2713765A1 (de) * 1977-03-29 1978-10-12 Licentia Gmbh Farbwahlmaskenanordnung fuer eine farbbildkathodenstrahlroehre
FR2420205A1 (fr) * 1978-03-13 1979-10-12 Videocolor Sa Tube a masque pour la television en couleurs
US4783614A (en) * 1986-10-28 1988-11-08 Zenith Electronics Corporation L-shaped support structure for tensioned shadow mask
US5416378A (en) * 1993-11-03 1995-05-16 Rca Thomson Licensing Corporation Color picture tube with iron-nickel alloy shadow mask

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897392A (en) * 1956-02-09 1959-07-28 Zenith Radio Corp Color television tube mask and frame assembly
US3351996A (en) * 1965-03-29 1967-11-14 Rauland Corp Method of making a rectangular-mask assembly for a shadow-mask type of color tube
NL6516386A (enrdf_load_stackoverflow) * 1965-12-16 1967-06-19
US3376451A (en) * 1966-09-12 1968-04-02 Buckbee Mears Co Shadow mask and magnetic shield unitary construction for color tv picture tubes
US3479546A (en) * 1968-06-11 1969-11-18 Buckbee Mears Co Self-supporting shadow mask for colored tv picture tubes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238423A (en) * 1989-11-02 1991-05-29 Samsung Electronic Devices Shadow mask for a cathode-ray tube
US5189334A (en) * 1989-11-02 1993-02-23 Samsung Electronic Devices Co., Ltd. Cathode ray tube having shadow mask
GB2238423B (en) * 1989-11-02 1994-07-13 Samsung Electronic Devices Shadow mask for a cathode-ray tube
GB2240659A (en) * 1990-01-31 1991-08-07 Samsung Electronic Devices Shadow mask assembly

Also Published As

Publication number Publication date
US3639799A (en) 1972-02-01
BE748376A (fr) 1970-09-16
FR2042025A5 (enrdf_load_stackoverflow) 1971-02-05
DE1947433A1 (de) 1970-10-29
NL7004423A (enrdf_load_stackoverflow) 1970-10-06
JPS4923619B1 (enrdf_load_stackoverflow) 1974-06-17

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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