CA956284A - Directional signal - Google Patents

Directional signal

Info

Publication number
CA956284A
CA956284A CA117,776A CA117776A CA956284A CA 956284 A CA956284 A CA 956284A CA 117776 A CA117776 A CA 117776A CA 956284 A CA956284 A CA 956284A
Authority
CA
Canada
Prior art keywords
directional signal
directional
signal
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
CA117,776A
Other versions
CA117776S (en
Inventor
Gunnar R. Ljungkull
Robert H. 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.)
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 CA956284A publication Critical patent/CA956284A/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)
  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Traffic Control Systems (AREA)
CA117,776A 1970-07-09 1971-07-08 Directional signal Expired CA956284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5359270A 1970-07-09 1970-07-09

Publications (1)

Publication Number Publication Date
CA956284A true CA956284A (en) 1974-10-15

Family

ID=21985310

Family Applications (1)

Application Number Title Priority Date Filing Date
CA117,776A Expired CA956284A (en) 1970-07-09 1971-07-08 Directional signal

Country Status (5)

Country Link
US (1) US3678458A (en)
JP (1) JPS5219439B1 (en)
CA (1) CA956284A (en)
DE (1) DE2134664A1 (en)
GB (1) GB1365154A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809881A (en) * 1972-07-17 1974-05-07 Holophane Co Inc Prismatic reflectors
US3895380A (en) * 1973-03-14 1975-07-15 Tamura Electric Works Ltd Digit display apparatus
US4158222A (en) * 1977-09-26 1979-06-12 Gulf & Western Industries, Inc. Limited visibility signal device
US6955449B2 (en) * 2001-04-13 2005-10-18 Gelcore Llc LED symbol signal
US6869203B2 (en) * 2001-04-13 2005-03-22 Gelcore Llc LED symbol signal
US6994448B1 (en) * 2002-08-15 2006-02-07 Gorrell John H Solar powered illuminated devices
GB0419713D0 (en) * 2004-09-04 2004-10-06 Agd Systems Ltd Traffic signals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833176A (en) * 1953-07-21 1958-05-06 Ossoinak Andres Juan Luis Arrangement for the exhibition of dynamic scenes to an observer in movement with respect to a screen
US2831284A (en) * 1954-08-09 1958-04-22 James D Thompson Writing advertizing sign
US3222516A (en) * 1963-06-24 1965-12-07 Lancaster Glass Corp Lenticulated lens for traffic light
US3568346A (en) * 1968-07-22 1971-03-09 Traversign Ltd Sign for conveying information to an observer moving with respect thereto
US3543235A (en) * 1969-05-19 1970-11-24 Gulf & Western Industries Adjustable light beam director having removable verticle baffles

Also Published As

Publication number Publication date
US3678458A (en) 1972-07-18
JPS5219439B1 (en) 1977-05-27
DE2134664A1 (en) 1972-06-08
GB1365154A (en) 1974-08-29

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