DE3752040D1 - Compact double filament with use of the slope for bending control - Google Patents

Compact double filament with use of the slope for bending control

Info

Publication number
DE3752040D1
DE3752040D1 DE3752040T DE3752040T DE3752040D1 DE 3752040 D1 DE3752040 D1 DE 3752040D1 DE 3752040 T DE3752040 T DE 3752040T DE 3752040 T DE3752040 T DE 3752040T DE 3752040 D1 DE3752040 D1 DE 3752040D1
Authority
DE
Germany
Prior art keywords
slope
bending control
double filament
compact double
compact
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 - Fee Related
Application number
DE3752040T
Other languages
German (de)
Other versions
DE3752040T2 (en
Inventor
Pierce Johnson
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.)
Flowil International Lighting Holding BV
Original Assignee
GTE Products 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
Application filed by GTE Products Corp filed Critical GTE Products Corp
Publication of DE3752040D1 publication Critical patent/DE3752040D1/en
Application granted granted Critical
Publication of DE3752040T2 publication Critical patent/DE3752040T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
DE19873752040 1986-12-16 1987-12-14 Compact double filament with use of the slope for bending control Expired - Fee Related DE3752040T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US94233286A 1986-12-16 1986-12-16

Publications (2)

Publication Number Publication Date
DE3752040D1 true DE3752040D1 (en) 1997-05-07
DE3752040T2 DE3752040T2 (en) 1997-10-30

Family

ID=25477937

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873752040 Expired - Fee Related DE3752040T2 (en) 1986-12-16 1987-12-14 Compact double filament with use of the slope for bending control

Country Status (2)

Country Link
EP (1) EP0271859B1 (en)
DE (1) DE3752040T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7932665B2 (en) 2008-12-02 2011-04-26 Osram Sylvania Inc. Dual filament lamp for rapid temperature processing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB441207A (en) * 1934-07-18 1936-01-15 Gen Electric Co Ltd Improvements in the manufacture of coiled coil filaments for electric incandescent lamps
US2359302A (en) * 1942-06-11 1944-10-03 Tung Sol Lamp Works Inc Incandescent lamp and method of manufacture
US3383539A (en) * 1967-02-06 1968-05-14 Sylvania Electric Prod Projection lamp
GB1147140A (en) * 1967-03-10 1969-04-02 Sylvania Electric Prod Incandescent lamp
US4012659A (en) * 1975-12-31 1977-03-15 Gte Sylvania Incorporated Method of flashing tungsten filament
US4316116A (en) * 1979-12-19 1982-02-16 General Electric Company Triple-coil incandescent filament
US4598225A (en) * 1983-02-25 1986-07-01 Gte Products Corporation Electric lamp with high outer-envelope to inner-envelope wall-thickness ratio
US4499401A (en) * 1983-03-03 1985-02-12 General Electric Company Triple coil incandescent filament
US4547704A (en) * 1983-08-01 1985-10-15 General Electric Company Higher efficiency incandescent lighting units
US4686412A (en) * 1986-04-14 1987-08-11 Gte Products Corporation Reflector-type lamp having reduced focus loss

Also Published As

Publication number Publication date
EP0271859A2 (en) 1988-06-22
EP0271859A3 (en) 1990-05-09
DE3752040T2 (en) 1997-10-30
EP0271859B1 (en) 1997-04-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FLOWIL INTERNATIONAL LIGHTING (HOLDING) B.V., AMST

8339 Ceased/non-payment of the annual fee