ES408519A1 - Process for screening cathode ray tubes including salvaging of excess phosphor slurry - Google Patents

Process for screening cathode ray tubes including salvaging of excess phosphor slurry

Info

Publication number
ES408519A1
ES408519A1 ES408519A ES408519A ES408519A1 ES 408519 A1 ES408519 A1 ES 408519A1 ES 408519 A ES408519 A ES 408519A ES 408519 A ES408519 A ES 408519A ES 408519 A1 ES408519 A1 ES 408519A1
Authority
ES
Spain
Prior art keywords
faceplate
pan
cathode ray
smaller
larger
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
ES408519A
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 ES408519A1 publication Critical patent/ES408519A1/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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/221—Applying luminescent coatings in continuous layers
    • H01J9/223—Applying luminescent coatings in continuous layers by uniformly dispersing of liquid

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Centrifugal Separators (AREA)
  • Luminescent Compositions (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

Apparatus for depositing a luminescent coating on a cathode ray tube faceplate 24, Fig. 2, by dispensing a quantity of phosphor slurry into the faceplate and rotating the faceplate to remove excess slurry centrifugally into a surrounding collection pan, is characerised by the provision of two different sized collection pans adapted for use with different sizes of faceplate. Fig. 2. illustrates the larger pan 23 in the operative position with the smaller pan 22 latched in the raised inoperative position the smaller pan is provided with a spout 27a which always lies within the larger pan which has a spout 27b adapted to drain into a funnel 28. The larger pan can be used with a 25" faceplate 24d or with 22" faceplate 24c (shown in phantom), and similarly the smaller pan can be used with either 17" or 19" faceplates. The pans are located at one of several processing stations to which the faceplates are conveyed in turn by a carrier 45 mounted on a stationary support 44 by rollers 59. The size of the faceplate is indicated by a flag 52a adapted to engage one or none of the three switches 53a-53c which in turn control the selection of the collection pan and the programme of times and speeds at which the faceplate is rotated by means of the motor 55. The apparatus may be used for processing screens for colour television tubes.
ES408519A 1969-06-24 1972-11-11 Process for screening cathode ray tubes including salvaging of excess phosphor slurry Expired ES408519A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83601769A 1969-06-24 1969-06-24

Publications (1)

Publication Number Publication Date
ES408519A1 true ES408519A1 (en) 1975-11-01

Family

ID=25271020

Family Applications (2)

Application Number Title Priority Date Filing Date
ES380816A Expired ES380816A1 (en) 1969-06-24 1970-06-16 Process for screening cathode ray tubes including salvaging of excess phosphor slurry
ES408519A Expired ES408519A1 (en) 1969-06-24 1972-11-11 Process for screening cathode ray tubes including salvaging of excess phosphor slurry

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES380816A Expired ES380816A1 (en) 1969-06-24 1970-06-16 Process for screening cathode ray tubes including salvaging of excess phosphor slurry

Country Status (7)

Country Link
US (1) US3672932A (en)
JP (1) JPS4832935B1 (en)
DE (1) DE2031286C2 (en)
ES (2) ES380816A1 (en)
FR (1) FR2052854A5 (en)
GB (1) GB1269295A (en)
NL (1) NL169798C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838441U (en) * 1971-09-10 1973-05-12
JPS4859436U (en) * 1971-11-09 1973-07-28
US4033288A (en) * 1971-11-20 1977-07-05 Basf Aktiengesellschaft Apparatus for coating magnetic disks
US4078095A (en) * 1974-03-28 1978-03-07 Rca Corporation Slurry process for coating particles upon the viewing-window surface of a cathode-ray tube
US4052519A (en) * 1975-07-02 1977-10-04 Zenith Radio Corporation Non-settling process for coating a phosphor slurry on the inner surface of a cathode ray tube faceplate
FI803175L (en) * 1979-10-13 1981-04-14 Int Standard Electric Corp ANORDNING FOER TILLVERKNING AV FAERGBILDROER
US4254160A (en) * 1979-12-17 1981-03-03 Rca Corporation Method for slurry coating a faceplate panel having a peripheral sidewall
US4244318A (en) * 1979-12-31 1981-01-13 Sperry Corporation Thin particulate film spin coater
KR920006865B1 (en) * 1984-05-18 1992-08-21 워싱톤 유니버시티 테크놀러지 어소우시에이츠 인코오퍼레이티드 Method and apparatus for coating particles or liquid droplets
JPS6354725A (en) * 1986-08-25 1988-03-09 Fuji Photo Film Co Ltd Method and apparatus for spin coating
GB2225157A (en) * 1988-10-29 1990-05-23 Samsung Electronic Devices Cathode ray tube screen manufacture
JPH04137436A (en) * 1990-09-28 1992-05-12 Sony Corp Manufacture of cathode-ray tube
JP3136625B2 (en) * 1991-03-19 2001-02-19 ソニー株式会社 Cathode ray tube phosphor screen manufacturing equipment
KR100329082B1 (en) * 1997-09-25 2002-03-18 니시무로 타이죠 Rotation transmission apparatus and apparatus for forming surface film of panel for cathode-ray tubes using the same
DE60020083D1 (en) * 1999-12-10 2005-06-16 Koninkl Philips Electronics Nv METHOD AND DEVICE FOR APPLYING A LAYER OF A COATING MATERIAL TO THE INSIDE OF A SCREEN FOR A COLOR PIPE TUBE
DE50002339D1 (en) * 2000-01-20 2003-07-03 Meica Ammerlaendische Fleischw vending machine
DE202014105017U1 (en) 2014-10-21 2016-01-25 Zumtobel Lighting Gmbh downlight

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364054A (en) * 1963-10-14 1968-01-16 Rca Corp Method of salvaging phosphor slurry in a spin coating process for making phosphor screens for cathode ray tubes
US3314161A (en) * 1964-08-25 1967-04-18 Rauland Corp Air system and cart for screen conveyor

Also Published As

Publication number Publication date
US3672932A (en) 1972-06-27
ES380816A1 (en) 1973-04-01
DE2031286C2 (en) 1984-01-05
NL169798C (en) 1982-08-16
GB1269295A (en) 1972-04-06
NL169798B (en) 1982-03-16
DE2031286A1 (en) 1971-01-07
JPS4832935B1 (en) 1973-10-09
FR2052854A5 (en) 1971-04-09
NL7009193A (en) 1970-12-29

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