CH289532A - Method for covering bulbs for electric lamps with an inner layer of very small, light-diffusing particles and device for carrying out the method. - Google Patents

Method for covering bulbs for electric lamps with an inner layer of very small, light-diffusing particles and device for carrying out the method.

Info

Publication number
CH289532A
CH289532A CH289532DA CH289532A CH 289532 A CH289532 A CH 289532A CH 289532D A CH289532D A CH 289532DA CH 289532 A CH289532 A CH 289532A
Authority
CH
Switzerland
Prior art keywords
bulbs
covering
carrying
light
small
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Nv filed Critical Philips Nv
Publication of CH289532A publication Critical patent/CH289532A/en

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
CH289532D 1950-03-15 1951-03-13 Method for covering bulbs for electric lamps with an inner layer of very small, light-diffusing particles and device for carrying out the method. CH289532A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL289532X 1950-03-15

Publications (1)

Publication Number Publication Date
CH289532A true CH289532A (en) 1953-03-15

Family

ID=19782678

Family Applications (1)

Application Number Title Priority Date Filing Date
CH289532D CH289532A (en) 1950-03-15 1951-03-13 Method for covering bulbs for electric lamps with an inner layer of very small, light-diffusing particles and device for carrying out the method.

Country Status (7)

Country Link
US (1) US2698257A (en)
BE (1) BE501846A (en)
CH (1) CH289532A (en)
DE (1) DE851092C (en)
FR (1) FR1033920A (en)
GB (1) GB697638A (en)
NL (1) NL78892C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074817A (en) * 1957-04-26 1963-01-22 Int Resistance Co Pyrolytically decomposed resistor consisting of the elements carbon, oxygen and silicon
US2967113A (en) * 1957-11-18 1961-01-03 Gen Electric Coating method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160714A (en) * 1932-07-20 1939-05-30 Hygrade Sylvania Corp Apparatus for interiorly coating lamps, tubes, and the like
US2046360A (en) * 1934-11-16 1936-07-07 Westinghouse Lamp Co Bulb coating machine
US2164332A (en) * 1937-08-18 1939-07-04 Birdseye Electric Company Apparatus for applying mirror surfaces to the interior of lamp bulbs
US2356136A (en) * 1941-07-05 1944-08-22 Libbey Owens Ford Glass Co Apparatus for handling mirrors during processing
US2545896A (en) * 1947-02-15 1951-03-20 Gen Electric Electric lamp, light diffusing coating therefor and method of manufacture

Also Published As

Publication number Publication date
GB697638A (en) 1953-09-23
FR1033920A (en) 1953-07-16
BE501846A (en)
US2698257A (en) 1954-12-28
NL78892C (en)
DE851092C (en) 1952-10-02

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