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GB1374723A - Method for coating only the convex major surface of an apertured mask for a cathode-ray tube - Google Patents

Method for coating only the convex major surface of an apertured mask for a cathode-ray tube

Info

Publication number
GB1374723A
GB1374723A GB5966972A GB5966972A GB1374723A GB 1374723 A GB1374723 A GB 1374723A GB 5966972 A GB5966972 A GB 5966972A GB 5966972 A GB5966972 A GB 5966972A GB 1374723 A GB1374723 A GB 1374723A
Authority
GB
United Kingdom
Prior art keywords
mask
cathode
ray tube
coating
major surface
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
GB5966972A
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of GB1374723A publication Critical patent/GB1374723A/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
    • H01J9/02—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
    • H01J9/144—Mask treatment related to the process of dot deposition during manufacture of luminescent screen
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

1374723 Cathode-ray tubes RCA CORPORATION 27 Dec 1972 [23 Dec 1971] 59669/72 Heading HID An apertured mask of a cathode-ray tube is coated with an organic film, e.g. to temporarily reduce the size of the apertures for printing photographically the luminescent screen, by rotating the mask 10 about an axis 25 normal to the centre of the mask which is convex face upwards, the angle 29 being 100 to 130 degrees, with a stream 38 of a solution of the film material projecting on to a central area of the mask above the centre and at an angle 42 less than 15 degrees, the mask being rotated at least once to apply the film and then at a faster rate to remove excess film material.
GB5966972A 1971-12-23 1972-12-27 Method for coating only the convex major surface of an apertured mask for a cathode-ray tube Expired GB1374723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00211476A US3811926A (en) 1971-12-23 1971-12-23 Method for coating only the convex major surface of an apertured mask for a cathode-ray tube

Publications (1)

Publication Number Publication Date
GB1374723A true GB1374723A (en) 1974-11-20

Family

ID=22787063

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5966972A Expired GB1374723A (en) 1971-12-23 1972-12-27 Method for coating only the convex major surface of an apertured mask for a cathode-ray tube

Country Status (10)

Country Link
US (1) US3811926A (en)
JP (1) JPS4874781A (en)
BE (1) BE793262A (en)
CA (1) CA984235A (en)
DE (1) DE2262510C3 (en)
ES (1) ES409696A1 (en)
FR (1) FR2164674B1 (en)
GB (1) GB1374723A (en)
IT (1) IT971166B (en)
NL (1) NL7217536A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922394A (en) * 1973-11-09 1975-11-25 Rca Corp Method for coating ferrous-metal mask for cathode-ray tube
US4651051A (en) * 1985-07-05 1987-03-17 Rca Corporation Cathode-ray tube having a focusing color-selection structure and a viewing screen formed therefrom
US4729907A (en) * 1987-02-24 1988-03-08 Rca Corporation Method of making a viewing screen structure for a cathode-ray tube
WO2000072353A1 (en) * 1999-05-21 2000-11-30 Koninklijke Philips Electronics N.V. Method and device for lacquering the inner side of a display screen

Also Published As

Publication number Publication date
CA984235A (en) 1976-02-24
DE2262510B2 (en) 1977-08-25
FR2164674B1 (en) 1976-08-27
DE2262510A1 (en) 1973-07-12
JPS4874781A (en) 1973-10-08
DE2262510C3 (en) 1978-05-11
IT971166B (en) 1974-04-30
ES409696A1 (en) 1975-12-16
US3811926A (en) 1974-05-21
NL7217536A (en) 1973-06-26
BE793262A (en) 1973-04-16
FR2164674A1 (en) 1973-08-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee