GB2058420B - Circuit for use in the detection of the condition of an isolated switch contact - Google Patents

Circuit for use in the detection of the condition of an isolated switch contact

Info

Publication number
GB2058420B
GB2058420B GB8027534A GB8027534A GB2058420B GB 2058420 B GB2058420 B GB 2058420B GB 8027534 A GB8027534 A GB 8027534A GB 8027534 A GB8027534 A GB 8027534A GB 2058420 B GB2058420 B GB 2058420B
Authority
GB
United Kingdom
Prior art keywords
detection
condition
circuit
switch contact
isolated switch
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
GB8027534A
Other versions
GB2058420A (en
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB8027534A priority Critical patent/GB2058420B/en
Publication of GB2058420A publication Critical patent/GB2058420A/en
Application granted granted Critical
Publication of GB2058420B publication Critical patent/GB2058420B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0427—Near field transmission with inductive or capacitive coupling means
    • B60C23/0428—Near field transmission with inductive or capacitive coupling means using passive wheel mounted resonance circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
GB8027534A 1979-09-13 1980-08-26 Circuit for use in the detection of the condition of an isolated switch contact Expired GB2058420B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8027534A GB2058420B (en) 1979-09-13 1980-08-26 Circuit for use in the detection of the condition of an isolated switch contact

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7931818 1979-09-13
GB8027534A GB2058420B (en) 1979-09-13 1980-08-26 Circuit for use in the detection of the condition of an isolated switch contact

Publications (2)

Publication Number Publication Date
GB2058420A GB2058420A (en) 1981-04-08
GB2058420B true GB2058420B (en) 1984-05-02

Family

ID=26272869

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8027534A Expired GB2058420B (en) 1979-09-13 1980-08-26 Circuit for use in the detection of the condition of an isolated switch contact

Country Status (1)

Country Link
GB (1) GB2058420B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149951A (en) * 1983-11-12 1985-06-19 Michael Sacks Security checking systems
US6362732B1 (en) 1997-01-15 2002-03-26 Algonquin Scientific Llc Tire pressure sensing system
US6124787A (en) * 1997-01-15 2000-09-26 Algonquin Scientific, Llc Tire pressure sensing system
US6335690B1 (en) 1997-01-15 2002-01-01 Algonquin Scientific, Llc Fluid sensing system
US6756892B2 (en) 1997-01-15 2004-06-29 Algonquin Scientific, Llc Tire pressure sensing system

Also Published As

Publication number Publication date
GB2058420A (en) 1981-04-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee