GB1309704A - Slurry process for coating particulate material upon a surface - Google Patents

Slurry process for coating particulate material upon a surface

Info

Publication number
GB1309704A
GB1309704A GB2431771*A GB2431771A GB1309704A GB 1309704 A GB1309704 A GB 1309704A GB 2431771 A GB2431771 A GB 2431771A GB 1309704 A GB1309704 A GB 1309704A
Authority
GB
United Kingdom
Prior art keywords
face plate
speed
slurry
rotation
vertical
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
GB2431771*A
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 GB1309704A publication Critical patent/GB1309704A/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)

Abstract

1309704 Coated cathode ray tube faceplate R C A CORPORATION 19 April 1971 [2 March 1970] 24317/71 Heading B2E [Also in Division C4] The concave surface of a cathode ray tube face plate is coated with particulate material, e.g. phosphor powder by dispensing a puddle of slurry comprised of the particulate material and mixed with a liquid vehicle on to the central portion of the concave surface while the face plate is rotated about an axis substantially normal to the central portion of the concave surface and at a small angle to the vertical and (a) spreading the slurry to the margin of the face plate by rotating the face plate about the axis and decreasing its speed while tilting the face plate to move the axis away from the vertical, (b) spreading the slurry back to the central portion of the face plate surface by either tilting the face plate to move the axis back towards the vertical and increasing the speed of rotation of the face plate, or by retaining the face plate in its tilted position and decreasing the speed of rotation of the face plate, and (c) again spreading the slurry to the margin of the face plate by either tilting the face plate to move the axis away from the vertical and decreasing the speed of rotation of the face plate, or by retaining the face plate in its tilted position while increasing the speed of rotation of the face plate.
GB2431771*A 1970-03-02 1971-04-19 Slurry process for coating particulate material upon a surface Expired GB1309704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1567270A 1970-03-02 1970-03-02

Publications (1)

Publication Number Publication Date
GB1309704A true GB1309704A (en) 1973-03-14

Family

ID=21772842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2431771*A Expired GB1309704A (en) 1970-03-02 1971-04-19 Slurry process for coating particulate material upon a surface

Country Status (6)

Country Link
US (1) US3653941A (en)
JP (1) JPS5229149B1 (en)
DE (1) DE2107631C2 (en)
FR (1) FR2083991A5 (en)
GB (1) GB1309704A (en)
NL (1) NL171503C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4052494A (en) * 1975-11-17 1977-10-04 Northrop Corporation Transparency fabrication method
US4124411A (en) * 1976-09-02 1978-11-07 U.S. Philips Corporation Method of providing a layer of solid material on a substrate in which liquid from which the solid material can be formed, is spread over the substrate surface
US4254160A (en) * 1979-12-17 1981-03-03 Rca Corporation Method for slurry coating a faceplate panel having a peripheral sidewall
JPH0567821A (en) * 1991-09-06 1993-03-19 Mitsubishi Electric Corp Wavelength monitor for narrow-band laser
DE4105297A1 (en) * 1991-02-20 1992-08-27 Samsung Electronic Devices Coating method for cathode ray tube faceplate - with control of fluorescent material slurry distribution in screen mfr.
US5582703A (en) * 1994-12-12 1996-12-10 Palomar Technologies Corporation Method of fabricating an ultra-high resolution three-color screen
US6103297A (en) * 1998-01-14 2000-08-15 Matsushita Electronics Corporation Method of manufacturing cathode-ray tube
US6277407B1 (en) 1998-11-10 2001-08-21 Frederick S. Marius Apparatus and method for tablet fabrication

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902973A (en) * 1956-08-23 1959-09-08 Rca Corp Coating apparatus
US3269838A (en) * 1963-03-18 1966-08-30 Rca Corp Method of making luminescent screens for cathode ray tubes
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
US3376153A (en) * 1964-10-20 1968-04-02 Rauland Corp Method of coating cathode-ray tubes
US3313643A (en) * 1966-06-21 1967-04-11 Rca Corp Method of making phosphor screens
US3467059A (en) * 1966-07-11 1969-09-16 Westinghouse Electric Corp Method and apparatus for applying a fluid coating

Also Published As

Publication number Publication date
NL171503C (en) 1983-04-05
NL7102697A (en) 1971-09-06
DE2107631C2 (en) 1985-06-27
US3653941A (en) 1972-04-04
DE2107631A1 (en) 1971-09-16
FR2083991A5 (en) 1971-12-17
NL171503B (en) 1982-11-01
JPS5229149B1 (en) 1977-07-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years