ES409696A1 - 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
ES409696A1
ES409696A1 ES409696A ES409696A ES409696A1 ES 409696 A1 ES409696 A1 ES 409696A1 ES 409696 A ES409696 A ES 409696A ES 409696 A ES409696 A ES 409696A ES 409696 A1 ES409696 A1 ES 409696A1
Authority
ES
Spain
Prior art keywords
mask
coating
ray tube
film material
cathode
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
ES409696A
Other languages
Spanish (es)
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 ES409696A1 publication Critical patent/ES409696A1/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

Abstract

A method of coating the convex surface of a mask with openings of a cathode ray tube with an organic film, characterized by slowly rotating the mask (12) around an axis (25) normal to the mask looking upwards and the axis inclined between 50º and 80º with respect to the vertical, projecting a stream (37) of a liquid solution of organic film material with an ascending path (38) on a central area (44) of the convex surface of the mask above the central axis, said current being projected towards the central zone of the mask with an angle less than 150º, continuing the rotation of the mask for at least one complete revolution while projecting excess film material on the mask to cover the surface of the mask. the mask, and then increase the mask's rotational speed to throw excess film material off the mask's surface. (Machine-translation by Google Translate, not legally binding)
ES409696A 1971-12-23 1972-12-16 Method for coating only the convex major surface of an apertured mask for a cathode-ray tube Expired ES409696A1 (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
ES409696A1 true ES409696A1 (en) 1975-12-16

Family

ID=22787063

Family Applications (1)

Application Number Title Priority Date Filing Date
ES409696A Expired ES409696A1 (en) 1971-12-23 1972-12-16 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
DE60004622T2 (en) * 1999-05-21 2004-06-17 Koninklijke Philips Electronics N.V. METHOD AND DEVICE FOR PAINTING THE INSIDE OF A SCREEN

Also Published As

Publication number Publication date
CA984235A (en) 1976-02-24
BE793262A (en) 1973-04-16
GB1374723A (en) 1974-11-20
FR2164674B1 (en) 1976-08-27
NL7217536A (en) 1973-06-26
DE2262510B2 (en) 1977-08-25
DE2262510C3 (en) 1978-05-11
IT971166B (en) 1974-04-30
DE2262510A1 (en) 1973-07-12
FR2164674A1 (en) 1973-08-03
US3811926A (en) 1974-05-21
JPS4874781A (en) 1973-10-08

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