CA993422A - Traffic light conversion kit - Google Patents

Traffic light conversion kit

Info

Publication number
CA993422A
CA993422A CA177,034A CA177034A CA993422A CA 993422 A CA993422 A CA 993422A CA 177034 A CA177034 A CA 177034A CA 993422 A CA993422 A CA 993422A
Authority
CA
Canada
Prior art keywords
traffic light
light conversion
conversion kit
kit
traffic
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
CA177,034A
Inventor
Roger H. Appeldorn
Gunnar R. Ljungkull
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA993422A publication Critical patent/CA993422A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Traffic Control Systems (AREA)
CA177,034A 1972-07-24 1973-07-23 Traffic light conversion kit Expired CA993422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27434372A 1972-07-24 1972-07-24

Publications (1)

Publication Number Publication Date
CA993422A true CA993422A (en) 1976-07-20

Family

ID=23047791

Family Applications (1)

Application Number Title Priority Date Filing Date
CA177,034A Expired CA993422A (en) 1972-07-24 1973-07-23 Traffic light conversion kit

Country Status (7)

Country Link
US (1) US3780285A (en)
JP (1) JPS4946891A (en)
CA (1) CA993422A (en)
DE (1) DE2337379A1 (en)
FR (1) FR2193954B1 (en)
GB (1) GB1435158A (en)
IT (1) IT989971B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939248A (en) * 1972-08-22 1974-04-12
JPS53159291U (en) * 1977-05-19 1978-12-13
ZA913502B (en) * 1990-05-11 1992-03-25 Commw Scient Ind Res Org Traffic light
AU648082B2 (en) * 1990-05-11 1994-04-14 Commonwealth Scientific And Industrial Research Organisation Traffic light
US5765944A (en) * 1995-02-16 1998-06-16 Fallon; Timothy Ross Sun shields for housing assemblies containing illuminated glass tubing
EP0860805A1 (en) * 1997-02-24 1998-08-26 SWARCO FUTURIT Verkehrssignalsysteme Ges.m.b.H. Optical signal indicator with multiple light sources
JP3887984B2 (en) * 1999-02-05 2007-02-28 松下電器産業株式会社 Multicolor light emitting dispersion type EL lamp
DE10022713B4 (en) * 2000-05-10 2004-02-05 Osram Opto Semiconductors Gmbh Signaling device for traffic signals
US20040022057A1 (en) * 2000-10-10 2004-02-05 Lee Gye Seon Led lamp for signal light
US7918588B2 (en) 2007-05-02 2011-04-05 Musco Corporation Full or near-full cut-off visor for light fixture
DE202009017139U1 (en) 2009-01-30 2010-04-29 Lutze, Peter Traffic light signals
DE202009001156U1 (en) 2009-01-30 2009-07-02 Lutze, Peter Traffic lights or other traffic lights with angled coverslips
US11384921B1 (en) * 2021-07-21 2022-07-12 Christopher Neal Bichon Snow shield assembly for use with a traffic signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484136A (en) * 1949-10-11 Cover glass for light signals
US3049614A (en) * 1959-06-29 1962-08-14 Gamewell Co Traffic signal adapter
US3457400A (en) * 1966-08-10 1969-07-22 Minnesota Mining & Mfg Apparatus and method for directing a beacon toward a limited viewing area
US3597606A (en) * 1969-01-03 1971-08-03 Gen Signal Corp Warning-light housing
US3696715A (en) * 1969-12-29 1972-10-10 Minnesota Mining & Mfg Beam defining apparatus

Also Published As

Publication number Publication date
DE2337379A1 (en) 1974-02-14
FR2193954A1 (en) 1974-02-22
GB1435158A (en) 1976-05-12
JPS4946891A (en) 1974-05-07
IT989971B (en) 1975-06-10
US3780285A (en) 1973-12-18
FR2193954B1 (en) 1977-05-13

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