GB1147808A - Device for masking a color tv picture tube - Google Patents

Device for masking a color tv picture tube

Info

Publication number
GB1147808A
GB1147808A GB51302/66A GB5130266A GB1147808A GB 1147808 A GB1147808 A GB 1147808A GB 51302/66 A GB51302/66 A GB 51302/66A GB 5130266 A GB5130266 A GB 5130266A GB 1147808 A GB1147808 A GB 1147808A
Authority
GB
United Kingdom
Prior art keywords
tube
mask
masking
welding
shadow mask
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
GB51302/66A
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.)
Buckbee Mears Co
Original Assignee
Buckbee Mears 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 Buckbee Mears Co filed Critical Buckbee Mears Co
Publication of GB1147808A publication Critical patent/GB1147808A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06Screens for shielding; Masks interposed in the electron stream
    • H01J29/07Shadow masks for colour television tubes
    • H01J29/073Mounting arrangements associated with shadow masks

Abstract

1,147,808. Colour television tubes. BUCKBEE-MEARS CO. 16 Nov., 1966 [12 Sept., 1966], No. 51302/66. Heading H1D. A device for masking a colour TV tube comprises a metallic shadow mask 10 and a funnel shaped metallic magnetic shield 13 extending rearward from the mask along virtually the entire length of the conical portion of the tube and terminating near the bulb neck, the shield at its wide end being rigidly atached, by welding for example, to the periphery of the shadow mask for strengthening the latter to make it substantially inflexible. Locating and mounting springs 20 may be fixed by welding for instance to index and mount the mask on to the glass bulb. In an alternative embodiment, outwardly flared portions of rims 12 and 14 are joined face to face and holes provided therein to receive locating pins on the inner side of the tube.
GB51302/66A 1966-09-12 1966-11-16 Device for masking a color tv picture tube Expired GB1147808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US578858A US3376451A (en) 1966-09-12 1966-09-12 Shadow mask and magnetic shield unitary construction for color tv picture tubes

Publications (1)

Publication Number Publication Date
GB1147808A true GB1147808A (en) 1969-04-10

Family

ID=24314611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51302/66A Expired GB1147808A (en) 1966-09-12 1966-11-16 Device for masking a color tv picture tube

Country Status (4)

Country Link
US (1) US3376451A (en)
DE (1) DE1462463A1 (en)
GB (1) GB1147808A (en)
NL (1) NL150263B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569759A (en) * 1968-07-15 1971-03-09 Kentucky Electronics Inc Shadow mask frame of sintered material for color tubes
US3639799A (en) * 1969-04-02 1972-02-01 Tubal Ind Inc Shadow mask with reinforcing ring for colored television picture tube
GB1464131A (en) * 1973-02-21 1977-02-09 Hitachi Ltd Manufacture of shadow masks
NL7906442A (en) * 1979-08-28 1981-03-03 Philips Nv COMPOSITE THERMISTOR ELEMENT.
US4556821A (en) * 1984-03-15 1985-12-03 Rca Corporation Color image display system having an improved external magnetic shield
KR200147273Y1 (en) * 1995-09-25 1999-06-15 손욱 Mask frame and inner shield of crt

Also Published As

Publication number Publication date
US3376451A (en) 1968-04-02
NL6617721A (en) 1968-03-13
NL150263B (en) 1976-07-15
DE1462463A1 (en) 1968-12-12

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