CA1013415A - Coiled coil filament for normal incandescent lamp - Google Patents

Coiled coil filament for normal incandescent lamp

Info

Publication number
CA1013415A
CA1013415A CA192,065A CA192065A CA1013415A CA 1013415 A CA1013415 A CA 1013415A CA 192065 A CA192065 A CA 192065A CA 1013415 A CA1013415 A CA 1013415A
Authority
CA
Canada
Prior art keywords
incandescent lamp
coiled coil
coil filament
normal incandescent
normal
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
CA192,065A
Other languages
English (en)
Other versions
CA192065S (en
Inventor
Wilhelmus M.J. Van Gils
Frederik N. Winter
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA1013415A publication Critical patent/CA1013415A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
CA192,065A 1973-02-14 1974-02-08 Coiled coil filament for normal incandescent lamp Expired CA1013415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7302046A NL7302046A (enExample) 1973-02-14 1973-02-14

Publications (1)

Publication Number Publication Date
CA1013415A true CA1013415A (en) 1977-07-05

Family

ID=19818218

Family Applications (1)

Application Number Title Priority Date Filing Date
CA192,065A Expired CA1013415A (en) 1973-02-14 1974-02-08 Coiled coil filament for normal incandescent lamp

Country Status (8)

Country Link
US (1) US3942063A (enExample)
JP (1) JPS5317830B2 (enExample)
BE (1) BE810920A (enExample)
CA (1) CA1013415A (enExample)
FR (1) FR2217801B3 (enExample)
GB (1) GB1397232A (enExample)
IT (1) IT1007365B (enExample)
NL (1) NL7302046A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686412A (en) * 1986-04-14 1987-08-11 Gte Products Corporation Reflector-type lamp having reduced focus loss
US4683397A (en) * 1986-04-14 1987-07-28 Gte Products Corporation Compact incandescent coiled coil filament
GB9807842D0 (en) 1998-04-09 1998-06-10 Gen Electric Lamp filament
US6690103B1 (en) 1999-07-21 2004-02-10 Alan K. Uke Incandescent light bulb with variable pitch coiled filament
US6856078B2 (en) * 2001-06-27 2005-02-15 Asm America, Inc. Lamp filament design
GB2428877A (en) * 2005-07-25 2007-02-07 Gen Electric Gap-Wound Filament Array and Lamps Using the Same
US7541726B2 (en) * 2006-05-17 2009-06-02 Osram Sylvania Inc. Lamp filament
US7851981B2 (en) 2006-12-22 2010-12-14 Seasonal Specialties, Llc Visible perception of brightness in miniature bulbs for an ornamental lighting circuit
US8581492B2 (en) * 2010-10-20 2013-11-12 General Electric Company Electric incandescent lamp for vehicle headlights with new filament geometry

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1998958A (en) * 1930-04-07 1935-04-23 Gen Electric Connection for filament and lead wires
US2084999A (en) * 1935-10-17 1937-06-29 Birdseye Electric Corp Electric lamp
US2424518A (en) * 1944-12-04 1947-07-22 Gen Electric Coil electrode
US2479193A (en) * 1946-07-08 1949-08-16 Gen Electric Articulated cathode

Also Published As

Publication number Publication date
FR2217801A1 (enExample) 1974-09-06
NL7302046A (enExample) 1974-08-16
BE810920A (fr) 1974-08-12
IT1007365B (it) 1976-10-30
JPS49112474A (enExample) 1974-10-26
DE2403475A1 (de) 1974-08-22
JPS5317830B2 (enExample) 1978-06-10
US3942063A (en) 1976-03-02
FR2217801B3 (enExample) 1976-11-26
GB1397232A (en) 1975-06-11
DE2403475B2 (de) 1977-01-20

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