GB1348087A - Process in the production of cathode ray tubes - Google Patents

Process in the production of cathode ray tubes

Info

Publication number
GB1348087A
GB1348087A GB4890172A GB4890172A GB1348087A GB 1348087 A GB1348087 A GB 1348087A GB 4890172 A GB4890172 A GB 4890172A GB 4890172 A GB4890172 A GB 4890172A GB 1348087 A GB1348087 A GB 1348087A
Authority
GB
United Kingdom
Prior art keywords
glass
coating
production
cathode ray
ray tubes
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
GB4890172A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor 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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1348087A publication Critical patent/GB1348087A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Glass Compositions (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1348087 Coating glass with glass FORD MOTOR CO Ltd 24 Oct 1972 [11 Nov 1971] 48901/72 Heading C1M [Also in Division H1] In order to reduce the resistivity of the wall of a cathode-ray tube it is internally coated with a glass comprising vanadium pentoxide as the major constituent and phosphorus pentoxide, the coating having a resistance between 10<SP>7</SP> and 10<SP>10</SP> ohms/square. The glass may contain small amounts of barium oxide or strontium oxide. The thickness of the coating is typically 30 mils. The glass is applied by fusing the constituents, crushing the resulting glass and mixing it with toluene and applying the mixture to the tube and then firing at 450‹ C. Specific compositions of the glass are given in the following ranges: V 2 O 5 60-75; P 2 O 5 20-35; SrO 0-10; BaO 0-5.
GB4890172A 1971-11-11 1972-10-24 Process in the production of cathode ray tubes Expired GB1348087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19799371A 1971-11-11 1971-11-11

Publications (1)

Publication Number Publication Date
GB1348087A true GB1348087A (en) 1974-03-13

Family

ID=22731568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4890172A Expired GB1348087A (en) 1971-11-11 1972-10-24 Process in the production of cathode ray tubes

Country Status (3)

Country Link
JP (1) JPS4856368A (en)
DE (1) DE2253634A1 (en)
GB (1) GB1348087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224596A (en) * 1988-09-29 1990-05-09 Mitsubishi Electric Corp Method for manufacturing anti-static cathode ray tubes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218653U (en) * 1975-07-28 1977-02-09

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224596A (en) * 1988-09-29 1990-05-09 Mitsubishi Electric Corp Method for manufacturing anti-static cathode ray tubes
US5002799A (en) * 1988-09-29 1991-03-26 Mitsubishi Denki Kabushiki Kaisha Method for manufacturing anti-static cathode ray tubes
GB2224596B (en) * 1988-09-29 1993-01-27 Mitsubishi Electric Corp Method for manufacturing anti-static cathode ray tubes

Also Published As

Publication number Publication date
JPS4856368A (en) 1973-08-08
DE2253634A1 (en) 1973-05-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees