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GB1337538A - Couble life light bulbs fuses and the like - Google Patents

Couble life light bulbs fuses and the like

Info

Publication number
GB1337538A
GB1337538A GB2087172A GB2087172A GB1337538A GB 1337538 A GB1337538 A GB 1337538A GB 2087172 A GB2087172 A GB 2087172A GB 2087172 A GB2087172 A GB 2087172A GB 1337538 A GB1337538 A GB 1337538A
Authority
GB
United Kingdom
Prior art keywords
contact
filament
contacts
couble
fuses
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
GB2087172A
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.)
Marinace R C
Original Assignee
Marinace R C
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 Marinace R C filed Critical Marinace R C
Publication of GB1337538A publication Critical patent/GB1337538A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/66—One or more circuit elements structurally associated with the lamp with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
    • H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch

Landscapes

  • Fuses (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Abstract

1337538 Electric incandescent lamp R C MARINACE 4 May 1972 [4 May 1971] 20871/72 Heading H1F [Also in Division H2] In a double-life light bulb, the base 19 comprises a screw threaded conductive member 20 housing an insulating member 22 which carries contacts 25 and 26, spaced apart and having an insulation piece 33 mounted between them and pivoted to be able to cover one or other contact. As shown, the piece 33 is bonded to upstanding portions 28, 29 of the contact 25, 26 which are of a malleable material to enable bending at the join. Filaments 17 and 18 are connected to a common lead 16 which is connected to the thread 20, and their other ends are connected via leads 14 and 15 to contacts 25 and 26 respectively. As shown in Fig. 1, contact 26 is exposed and filament 18 will light up when the lamp is in use, when the filament blows the flap formed by parts 28, 33 and 29 is turned through 180 degrees to expose contact 25 and enable filament 17 to be used. In a modification portions 28 and 29 are dispensed with, the insulation piece 33 being hinged in the slot between contacts 25 and 26.
GB2087172A 1971-05-04 1972-05-04 Couble life light bulbs fuses and the like Expired GB1337538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14019471A 1971-05-04 1971-05-04

Publications (1)

Publication Number Publication Date
GB1337538A true GB1337538A (en) 1973-11-14

Family

ID=22490152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2087172A Expired GB1337538A (en) 1971-05-04 1972-05-04 Couble life light bulbs fuses and the like

Country Status (6)

Country Link
US (1) US3673534A (en)
DE (1) DE2221854A1 (en)
FR (1) FR2135244A1 (en)
GB (1) GB1337538A (en)
IT (1) IT958564B (en)
NL (1) NL7205975A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121134A (en) * 1977-10-27 1978-10-17 James Francis Fontenelle Rotatable multiple filament lamp and socket adapter
FR2754936A1 (en) * 1996-10-22 1998-04-24 Soares Duarte Antoine Dual filament incandescent lamp allowing use after first filament has failed
US6583536B1 (en) * 2000-02-15 2003-06-24 James W Gibboney, Jr. Multiple, sequential filament lamp
US20020101144A1 (en) * 2001-01-26 2002-08-01 Pan Wun Fang Christmas bulb structure
US7234973B1 (en) 2006-03-23 2007-06-26 Shelly Mark E Lighting system having modified light bulb base and luminare socket for preventing the selection of an over wattage light bulb and method of forming same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1551463A (en) * 1925-08-25 Canada
US966812A (en) * 1909-04-09 1910-08-09 Harry S Clark Incandescent lamp.
US1460143A (en) * 1920-08-06 1923-06-26 Ryzowicz Louis Incandescent lamp
US1449627A (en) * 1921-12-14 1923-03-27 Rohner Emil Electric incandescent lamp
DE503836C (en) * 1927-09-30 1930-07-26 Patra Patent Treuhand Shunt resistor for electric light bulbs to be connected in series and other consumer devices
US3260888A (en) * 1962-11-19 1966-07-12 Jr John K Webb Two filament lamp with selector or switch
US3296400A (en) * 1966-03-07 1967-01-03 John A Kienzle Light bulbs, fuses and the like

Also Published As

Publication number Publication date
NL7205975A (en) 1972-11-07
DE2221854A1 (en) 1972-11-16
US3673534A (en) 1972-06-27
IT958564B (en) 1973-10-30
FR2135244A1 (en) 1972-12-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees