CA993977A - Monitoring system for indicating changes of states of switching elements - Google Patents

Monitoring system for indicating changes of states of switching elements

Info

Publication number
CA993977A
CA993977A CA170,826A CA170826A CA993977A CA 993977 A CA993977 A CA 993977A CA 170826 A CA170826 A CA 170826A CA 993977 A CA993977 A CA 993977A
Authority
CA
Canada
Prior art keywords
states
monitoring system
switching elements
indicating changes
indicating
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
CA170,826A
Other languages
English (en)
Other versions
CA170826S (en
Inventor
Leo J.M. Billion
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA247,022A priority Critical patent/CA999945A/en
Application granted granted Critical
Publication of CA993977A publication Critical patent/CA993977A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/14—Central alarm receiver or annunciator arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Alarm Devices (AREA)
  • Keying Circuit Devices (AREA)
  • Alarm Systems (AREA)
CA170,826A 1972-05-10 1973-05-09 Monitoring system for indicating changes of states of switching elements Expired CA993977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA247,022A CA999945A (en) 1972-05-10 1976-03-03 Monitoring system for indicating changes of states of switching elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE117311 1972-05-10

Publications (1)

Publication Number Publication Date
CA993977A true CA993977A (en) 1976-07-27

Family

ID=3841646

Family Applications (1)

Application Number Title Priority Date Filing Date
CA170,826A Expired CA993977A (en) 1972-05-10 1973-05-09 Monitoring system for indicating changes of states of switching elements

Country Status (9)

Country Link
US (1) US3845363A (hu)
JP (1) JPS4949597A (hu)
CA (1) CA993977A (hu)
DD (1) DD104890A5 (hu)
DE (1) DE2323083A1 (hu)
FR (1) FR2184073A1 (hu)
IT (1) IT987339B (hu)
NL (1) NL7306491A (hu)
ZA (1) ZA733144B (hu)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60160193U (ja) * 1984-03-31 1985-10-24 吉岡　武夫 喫煙用パイプ
JPS6310719Y2 (hu) * 1985-06-26 1988-03-30
US5257159A (en) * 1989-05-26 1993-10-26 Loral Vought Systems Corporation Electronically monitored and controlled electrostatic discharge flooring system
US5096147A (en) * 1990-11-19 1992-03-17 Sel Division, Alcatel Canada Inc. In-circuit contact monitor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296499A (en) * 1963-08-05 1967-01-03 Visual Electronics Corp Multi-channel switching system
US3597737A (en) * 1968-06-21 1971-08-03 Susquehanna Corp Interlocking switch arrangement

Also Published As

Publication number Publication date
JPS4949597A (hu) 1974-05-14
US3845363A (en) 1974-10-29
IT987339B (it) 1975-02-20
DE2323083A1 (de) 1973-11-22
ZA733144B (en) 1974-04-24
DD104890A5 (hu) 1974-03-20
NL7306491A (hu) 1973-11-13
FR2184073A1 (hu) 1973-12-21

Similar Documents

Publication Publication Date Title
AU4138872A (en) Polyphase signal monitoring system
CA984027A (en) Flame monitoring system
AU4657772A (en) Novel liquid control system
CA972813A (en) Fault mode detection system
CA993977A (en) Monitoring system for indicating changes of states of switching elements
CA1008528A (en) Road-sign warning system
CA977582A (en) Reflection-type level indicator
CA999945A (en) Monitoring system for indicating changes of states of switching elements
IL44404A0 (en) An alarm system
CA945238A (en) Switching means for an alarm system
CA1002210A (en) Monitoring of tritium
CA1001277A (en) Arrangement for integrating switching systems of different types
CA971227A (en) Phase condition indicating circuit
AU476856B2 (en) Alarm system
CA898365A (en) Monitoring system
CA1002149A (en) Indicating system
CA894463A (en) Position monitoring system
CA954006A (en) Liquid system function indicator
AU489927B2 (en) Switching system
CA983140A (en) First fault annunciator system
CA966901A (en) System for monitoring the position of multi-position selectors
AU465998B2 (en) An improved switching system
AU482957B2 (en) An improved switching system
CA896752A (en) Alarm system
CA901125A (en) Alarm system