GB2229843B - Warning system - Google Patents

Warning system

Info

Publication number
GB2229843B
GB2229843B GB9006155A GB9006155A GB2229843B GB 2229843 B GB2229843 B GB 2229843B GB 9006155 A GB9006155 A GB 9006155A GB 9006155 A GB9006155 A GB 9006155A GB 2229843 B GB2229843 B GB 2229843B
Authority
GB
United Kingdom
Prior art keywords
warning system
warning
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 - Lifetime
Application number
GB9006155A
Other versions
GB9006155D0 (en
GB2229843A (en
Inventor
Alastair Crawford Ritchie
William Alexander Cormack
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.)
COEVAL PRODUCTS Ltd
Original Assignee
COEVAL PRODUCTS Ltd
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 COEVAL PRODUCTS Ltd filed Critical COEVAL PRODUCTS Ltd
Publication of GB9006155D0 publication Critical patent/GB9006155D0/en
Publication of GB2229843A publication Critical patent/GB2229843A/en
Application granted granted Critical
Publication of GB2229843B publication Critical patent/GB2229843B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
GB9006155A 1989-03-30 1990-03-19 Warning system Expired - Lifetime GB2229843B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898907158A GB8907158D0 (en) 1989-03-30 1989-03-30 Warning system

Publications (3)

Publication Number Publication Date
GB9006155D0 GB9006155D0 (en) 1990-05-16
GB2229843A GB2229843A (en) 1990-10-03
GB2229843B true GB2229843B (en) 1992-08-19

Family

ID=10654171

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898907158A Pending GB8907158D0 (en) 1989-03-30 1989-03-30 Warning system
GB9006155A Expired - Lifetime GB2229843B (en) 1989-03-30 1990-03-19 Warning system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898907158A Pending GB8907158D0 (en) 1989-03-30 1989-03-30 Warning system

Country Status (1)

Country Link
GB (2) GB8907158D0 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244362A (en) * 1990-05-03 1991-11-27 Victor Robert Knight Low bridge warning
FR2690519B1 (en) * 1992-04-23 1994-06-10 Est Centre Etu Tech Equipement DEVICE FOR ANALYZING THE PATH OF MOBILES.
GB2323954B (en) * 1997-04-03 1999-03-10 Jonathan Angus King A vehicle warning system
GB2405199A (en) * 2003-08-20 2005-02-23 Robin Tingey Headroom alert system
CN100433075C (en) * 2006-12-12 2008-11-12 天津工业大学 Superhigh vehicle alarming device
GB2514127B (en) * 2013-05-14 2015-10-28 Westcotec Ltd A Presence and Height Measurement Apparatus
CN107103764A (en) * 2017-06-20 2017-08-29 国网山东省电力公司烟台供电公司 Crossing highway circuit height limitation warning device
CN111081066A (en) * 2019-12-24 2020-04-28 广智微芯(扬州)有限公司 Height-limiting anti-collision early warning method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137005A (en) * 1983-02-04 1984-09-26 Irwin Michael Scott Davidson Traffic signalling system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137005A (en) * 1983-02-04 1984-09-26 Irwin Michael Scott Davidson Traffic signalling system

Also Published As

Publication number Publication date
GB9006155D0 (en) 1990-05-16
GB2229843A (en) 1990-10-03
GB8907158D0 (en) 1989-05-10

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20100318