GB1329667A - Two-terminal two-colour indicator lamp assembly - Google Patents

Two-terminal two-colour indicator lamp assembly

Info

Publication number
GB1329667A
GB1329667A GB4694171A GB4694171A GB1329667A GB 1329667 A GB1329667 A GB 1329667A GB 4694171 A GB4694171 A GB 4694171A GB 4694171 A GB4694171 A GB 4694171A GB 1329667 A GB1329667 A GB 1329667A
Authority
GB
United Kingdom
Prior art keywords
envelope
terminals
indicator lamp
lamp
oct
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
GB4694171A
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.)
Wagner Electric Corp
Original Assignee
Wagner Electric 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 Wagner Electric Corp filed Critical Wagner Electric Corp
Publication of GB1329667A publication Critical patent/GB1329667A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Audible And Visible Signals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1329667 Electric incandescent lamps WAGNER ELECTRIC CORP 8 Oct 1971 [12 Oct 1970] 46941/71 Heading H1F An indicator lamp has an envelope 12 with an uncoloured portion 14 and a coloured portion 16, and two filaments 18, 20 are supported within the envelope by members 22, 24, 26, 28 opposite respective envelope portions, and the support members extend through the envelope to be connected to first and second terminals 48, 50, which are mechanically connected to the lamp envelope, through a polarity-responsive circuit such that the direction of current flow determines which one filament is energized. This circuit comprises a pair of diodes 44, 46 connected between terminals 48, 50 and the leads 36, 38, 40, 42 extending through the envelope, in the manner shown in Fig. 2. The terminals 48, 50 wrap around the lamp envelope to engage it and an insulating cement (54), Fig. 4 (not shown), spaces the terminal portions 48d and 50d and supports the common diode/ filament junction.
GB4694171A 1970-10-12 1971-10-08 Two-terminal two-colour indicator lamp assembly Expired GB1329667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7973770A 1970-10-12 1970-10-12

Publications (1)

Publication Number Publication Date
GB1329667A true GB1329667A (en) 1973-09-12

Family

ID=22152485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4694171A Expired GB1329667A (en) 1970-10-12 1971-10-08 Two-terminal two-colour indicator lamp assembly

Country Status (6)

Country Link
US (1) US3697802A (en)
CA (1) CA950538A (en)
DE (1) DE2149686C3 (en)
FR (1) FR2111276A5 (en)
GB (1) GB1329667A (en)
IT (1) IT940955B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795830A (en) * 1972-08-17 1974-03-05 Shelton J Led slidebase switchboard lamp
DE3125428C1 (en) * 1981-06-27 1983-01-13 Heinz 6521 Offstein Bollmann Device for producing light
US4458179A (en) * 1982-03-26 1984-07-03 American Sterilizer Company Controller for lamp having more than one light source
SE8405396L (en) * 1984-10-29 1986-04-30 Sylve Ronndahl SWITCHING DEVICE
US4841196A (en) * 1987-12-09 1989-06-20 Gte Products Corporation Two-filament lamp and operating circuit and method for designing same
US5331734A (en) * 1990-03-12 1994-07-26 Hunt Arthur R Method for installing an electrical device having pins into pin sockets
EP1384251A1 (en) * 2001-05-03 2004-01-28 Alan Shields Lamp with multiple light-producing elements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666876A (en) * 1923-01-17 1928-04-17 Price Sidney Leopold Lamp for use on motor vehicles and for other purposes
FR743401A (en) * 1932-07-28 1933-03-30
US3304498A (en) * 1963-05-15 1967-02-14 Ideal Ind Voltage, polarity and frequency tester having a. c.-d. c. compensation and gas tube indicators
US3319115A (en) * 1964-11-04 1967-05-09 William T Smith Standby circuit using a two filament incandescent lamp to maintain approximately thesame light output

Also Published As

Publication number Publication date
FR2111276A5 (en) 1972-06-02
US3697802A (en) 1972-10-10
DE2149686B2 (en) 1974-06-06
CA950538A (en) 1974-07-02
DE2149686C3 (en) 1975-01-23
IT940955B (en) 1973-02-20
DE2149686A1 (en) 1972-08-31

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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