FR2281793A1 - Electrostatic powder application on fluorescent bowl - by ejector tube with dispersion screens at each end - Google Patents

Electrostatic powder application on fluorescent bowl - by ejector tube with dispersion screens at each end

Info

Publication number
FR2281793A1
FR2281793A1 FR7428201A FR7428201A FR2281793A1 FR 2281793 A1 FR2281793 A1 FR 2281793A1 FR 7428201 A FR7428201 A FR 7428201A FR 7428201 A FR7428201 A FR 7428201A FR 2281793 A1 FR2281793 A1 FR 2281793A1
Authority
FR
France
Prior art keywords
bowl
fluorescent
ejector tube
powder
electrostatic powder
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.)
Granted
Application number
FR7428201A
Other languages
French (fr)
Other versions
FR2281793B3 (en
Inventor
Nhiep Nguyen Dat
Raymond Claude Emile Boucher
Andre Emile Delembre
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.)
CENTRAL ECLAIRAGE LAB
Original Assignee
CENTRAL ECLAIRAGE LAB
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 CENTRAL ECLAIRAGE LAB filed Critical CENTRAL ECLAIRAGE LAB
Priority to FR7428201A priority Critical patent/FR2281793A1/en
Publication of FR2281793A1 publication Critical patent/FR2281793A1/en
Application granted granted Critical
Publication of FR2281793B3 publication Critical patent/FR2281793B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/12—Plant for applying liquids or other fluent materials to objects specially adapted for coating the interior of hollow bodies
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

The process enables a layer of powder to be deposited on a desired area of the bowl and to a desired thickness, so as to regulate the light radiated to the outside. An ejector tube is mounted along the lengthwise internal axis of the bowl, and connected at one end to a supply of carrier gas for the powder to be distributed, while the other end opens into the bowl which is rotated round its axis to distribute the power onto its heated inside wall. There are dispersion screens at each end of the tube, and the discharge end of it is equipped with a component imparting a predetermined shape to the emerging powder jet.
FR7428201A 1974-08-14 1974-08-14 Electrostatic powder application on fluorescent bowl - by ejector tube with dispersion screens at each end Granted FR2281793A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7428201A FR2281793A1 (en) 1974-08-14 1974-08-14 Electrostatic powder application on fluorescent bowl - by ejector tube with dispersion screens at each end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7428201A FR2281793A1 (en) 1974-08-14 1974-08-14 Electrostatic powder application on fluorescent bowl - by ejector tube with dispersion screens at each end

Publications (2)

Publication Number Publication Date
FR2281793A1 true FR2281793A1 (en) 1976-03-12
FR2281793B3 FR2281793B3 (en) 1977-06-10

Family

ID=9142401

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7428201A Granted FR2281793A1 (en) 1974-08-14 1974-08-14 Electrostatic powder application on fluorescent bowl - by ejector tube with dispersion screens at each end

Country Status (1)

Country Link
FR (1) FR2281793A1 (en)

Also Published As

Publication number Publication date
FR2281793B3 (en) 1977-06-10

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Legal Events

Date Code Title Description
TP Transmission of property