GB951151A - Improvements in or relating to devices for coating the inner surfaces of bulbs for incandescent lamps and discharge tubes with a powder - Google Patents

Improvements in or relating to devices for coating the inner surfaces of bulbs for incandescent lamps and discharge tubes with a powder

Info

Publication number
GB951151A
GB951151A GB31215/61A GB3121561A GB951151A GB 951151 A GB951151 A GB 951151A GB 31215/61 A GB31215/61 A GB 31215/61A GB 3121561 A GB3121561 A GB 3121561A GB 951151 A GB951151 A GB 951151A
Authority
GB
United Kingdom
Prior art keywords
coating
nozzle
powder
bulb
discharge
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
GB31215/61A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical 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
Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB951151A publication Critical patent/GB951151A/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

951,151. Coating lamp bulbs. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 30, 1961 [Sept. 2, 1960], No. 31215/61. Heading B2J. In an apparatus for electrostatically coating the inside of lamp bulb with powder blown into the bulb through a nozzle 18 constituting a negative electrode, the bulb being supported on a rotatable table 4 and being heated by an externally arranged gas burner 25 constituting a positive electrode, the nozzle is provided with powder discharge channels 30 the axes of at least some of which converge in the direction of discharge. This convergence is alleged to produce a more uniform coating of the lamp interior. The nozzle may have a ring of discharge holes 30 the axes of which are located on a conical surface. Alternatively, as shown in Fig. 4, the nozzle may comprise two parts 37, 38 which screw one into the other to define a conical annular discharge channel 39 the width of which is adjustable by relative axial screw adjustment of the two parts. Recesses 42 in the end of part 38 facilitate such adjustment.
GB31215/61A 1960-09-02 1961-08-30 Improvements in or relating to devices for coating the inner surfaces of bulbs for incandescent lamps and discharge tubes with a powder Expired GB951151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL255548 1960-09-02

Publications (1)

Publication Number Publication Date
GB951151A true GB951151A (en) 1964-03-04

Family

ID=19752540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31215/61A Expired GB951151A (en) 1960-09-02 1961-08-30 Improvements in or relating to devices for coating the inner surfaces of bulbs for incandescent lamps and discharge tubes with a powder

Country Status (5)

Country Link
US (1) US3126300A (en)
CH (1) CH397974A (en)
ES (1) ES270189A1 (en)
GB (1) GB951151A (en)
NL (2) NL255548A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745969A (en) * 1971-04-19 1973-07-17 Motorola Inc Offset top ejection vapor deposition apparatus
US4081709A (en) * 1975-11-20 1978-03-28 General Electric Company Electrostatic coating of silica powders on incandescent bulbs
GB1558043A (en) * 1976-02-03 1979-12-19 Onoda Cement Co Ltd Metal squeeze out tube and method and apparatus for forming a powder layer on its surface
US4597984A (en) * 1985-06-03 1986-07-01 General Electric Company Method and apparatus for coating fluorescent lamp tubes
ES2037957T3 (en) * 1988-09-16 1993-07-01 G B Glass Limited APPARATUS FOR THE MANUFACTURE OF A PHOTODIFUSING GLASS AMPOULE.
US6564772B1 (en) 2001-10-30 2003-05-20 Caterpillar Inc. Injector tip for an internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566392A (en) * 1945-06-20 1951-09-04 John A Wilkins Spray gun
FR1087714A (en) * 1953-11-23 1955-02-28 Spray method and device
US2806444A (en) * 1954-12-16 1957-09-17 Westinghouse Electric Corp Silica coating apparatus for incandescent lamp bulbs
US3045925A (en) * 1959-09-29 1962-07-24 Michael N Giangualano Multiple spray apparatus

Also Published As

Publication number Publication date
NL255548A (en)
US3126300A (en) 1964-03-24
ES270189A1 (en) 1961-12-16
NL112394C (en)
CH397974A (en) 1965-08-31

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