GB845985A - Improvements in or relating to the formation of electrically conducting layers - Google Patents

Improvements in or relating to the formation of electrically conducting layers

Info

Publication number
GB845985A
GB845985A GB32396/55A GB3239655A GB845985A GB 845985 A GB845985 A GB 845985A GB 32396/55 A GB32396/55 A GB 32396/55A GB 3239655 A GB3239655 A GB 3239655A GB 845985 A GB845985 A GB 845985A
Authority
GB
United Kingdom
Prior art keywords
mask
window
envelope
electrically conducting
area
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
GB32396/55A
Inventor
John Wardley
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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
Priority to NL100960D priority Critical patent/NL100960C/xx
Priority to NL211978D priority patent/NL211978A/xx
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB32396/55A priority patent/GB845985A/en
Priority to US621061A priority patent/US2915039A/en
Priority to FR1160235D priority patent/FR1160235A/en
Publication of GB845985A publication Critical patent/GB845985A/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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/88—Coatings
    • H01J2229/882—Coatings having particular electrical resistive or conductive properties

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Surface Treatment Of Glass (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

An electrically conducting layer is formed on a predetermined area by providing a mask defining said area, causing a substance capable of forming the conducting layer to become deposited, e.g. by spraying, on said area, and directing a current of gas, e.g. air, to oppose leakage of the substance around the edge of the mask. The surface to be coated may be the end wall of a tubular envelope, e.g. a window of an electronic device having a metal ring sealed between the window and the envelope, in which case the mask is also tubular and of such diameter as to expose the window and the inner edge of the metal ring. The current of gas is then caused to flow between the mask and the envelope. The mask may be of metal or asbestos. The substance sprayed may be an aqueous solution of stannic chloride, containing hydrochloric acid, in which case the surface to be coated is heated, e.g. in an oven, before spraying.
GB32396/55A 1955-11-12 1955-11-12 Improvements in or relating to the formation of electrically conducting layers Expired GB845985A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL100960D NL100960C (en) 1955-11-12
NL211978D NL211978A (en) 1955-11-12
GB32396/55A GB845985A (en) 1955-11-12 1955-11-12 Improvements in or relating to the formation of electrically conducting layers
US621061A US2915039A (en) 1955-11-12 1956-11-08 Formation of conducting layers
FR1160235D FR1160235A (en) 1955-11-12 1956-11-12 Improvements in the formation of conductive layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32396/55A GB845985A (en) 1955-11-12 1955-11-12 Improvements in or relating to the formation of electrically conducting layers

Publications (1)

Publication Number Publication Date
GB845985A true GB845985A (en) 1960-08-24

Family

ID=10337972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32396/55A Expired GB845985A (en) 1955-11-12 1955-11-12 Improvements in or relating to the formation of electrically conducting layers

Country Status (4)

Country Link
US (1) US2915039A (en)
FR (1) FR1160235A (en)
GB (1) GB845985A (en)
NL (2) NL211978A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294576A (en) * 1963-01-14 1966-12-27 First Safe Deposit Nat Bank Of Method of producing printed circuit structures
GB2215426A (en) * 1988-03-03 1989-09-20 Bowthorpe Hellermann Ltd Masking tubular components
US8460760B2 (en) 2010-11-30 2013-06-11 United Technologies Corporation Coating a perforated surface

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280794A (en) * 1960-04-15 1966-10-25 Int Latex Corp Coating apparatus including masking means
US3349480A (en) * 1962-11-09 1967-10-31 Ibm Method of forming through hole conductor lines
US3809011A (en) * 1969-05-23 1974-05-07 Tunzini Ameliorair Sa Apparatus for the surface coating of objects
US3874333A (en) * 1972-09-28 1975-04-01 Nat Steel Corp Preventing edge wrap-around in one-side electrostatic coating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956637A (en) * 1931-01-28 1934-05-01 Hygrade Sylvania Corp Spraying apparatus
US2123706A (en) * 1932-07-20 1938-07-12 Hygrade Sylvania Corp Method of manufacture of reflector bulbs
US2242032A (en) * 1937-10-30 1941-05-13 Chrysler Corp Mask
US2559969A (en) * 1950-02-16 1951-07-10 Pittsburgh Plate Glass Co Method of applying a masking composition to a glass base

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294576A (en) * 1963-01-14 1966-12-27 First Safe Deposit Nat Bank Of Method of producing printed circuit structures
GB2215426A (en) * 1988-03-03 1989-09-20 Bowthorpe Hellermann Ltd Masking tubular components
US8460760B2 (en) 2010-11-30 2013-06-11 United Technologies Corporation Coating a perforated surface

Also Published As

Publication number Publication date
US2915039A (en) 1959-12-01
FR1160235A (en) 1958-07-09
NL100960C (en)
NL211978A (en)

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