CA974568A - Filaments for electric lamps and methods of making the same - Google Patents

Filaments for electric lamps and methods of making the same

Info

Publication number
CA974568A
CA974568A CA135,740A CA135740A CA974568A CA 974568 A CA974568 A CA 974568A CA 135740 A CA135740 A CA 135740A CA 974568 A CA974568 A CA 974568A
Authority
CA
Canada
Prior art keywords
filaments
making
methods
same
electric lamps
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
CA135,740A
Inventor
Ronald C. Koo
Joel Shurgan
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.)
Duro Test Corp
Original Assignee
Duro Test Corp
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 claimed from US00223607A external-priority patent/US3812393A/en
Application filed by Duro Test Corp filed Critical Duro Test Corp
Application granted granted Critical
Publication of CA974568A publication Critical patent/CA974568A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
    • H01K1/08—Metallic bodies
CA135,740A 1972-02-04 1972-02-28 Filaments for electric lamps and methods of making the same Expired CA974568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00223607A US3812393A (en) 1970-08-24 1972-02-04 Reduced impurity filament for electric lamps

Publications (1)

Publication Number Publication Date
CA974568A true CA974568A (en) 1975-09-16

Family

ID=22837238

Family Applications (1)

Application Number Title Priority Date Filing Date
CA135,740A Expired CA974568A (en) 1972-02-04 1972-02-28 Filaments for electric lamps and methods of making the same

Country Status (3)

Country Link
CA (1) CA974568A (en)
FR (1) FR2174469A5 (en)
NL (1) NL175566C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066783A (en) * 1986-05-20 1991-11-19 Cohen Eric A Antiviral peptides and means for treating herpes infections
JP2007524969A (en) * 2003-12-16 2007-08-30 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Incandescent lamp and method for its manufacture

Also Published As

Publication number Publication date
NL175566B (en) 1984-06-18
NL175566C (en) 1984-11-16
NL7203305A (en) 1973-08-07
FR2174469A5 (en) 1973-10-12

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