CA918776A - Motorized transmitter - Google Patents

Motorized transmitter

Info

Publication number
CA918776A
CA918776A CA051769A CA51769A CA918776A CA 918776 A CA918776 A CA 918776A CA 051769 A CA051769 A CA 051769A CA 51769 A CA51769 A CA 51769A CA 918776 A CA918776 A CA 918776A
Authority
CA
Canada
Prior art keywords
motorized
transmitter
motorized transmitter
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
CA051769A
Other languages
English (en)
Inventor
C. Evans Francis
O. Johnson Fred
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.)
American District Telegraph Co
Original Assignee
American District Telegraph 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 American District Telegraph Co filed Critical American District Telegraph Co
Application granted granted Critical
Publication of CA918776A publication Critical patent/CA918776A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
CA051769A 1968-10-31 1969-05-16 Motorized transmitter Expired CA918776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77225968A 1968-10-31 1968-10-31

Publications (1)

Publication Number Publication Date
CA918776A true CA918776A (en) 1973-01-09

Family

ID=25094469

Family Applications (1)

Application Number Title Priority Date Filing Date
CA051769A Expired CA918776A (en) 1968-10-31 1969-05-16 Motorized transmitter

Country Status (7)

Country Link
US (1) US3618069A (fr)
BE (1) BE740214A (fr)
CA (1) CA918776A (fr)
DE (1) DE1952229C3 (fr)
FR (1) FR2021981B1 (fr)
GB (1) GB1257729A (fr)
NL (1) NL158952B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855480A (en) * 1971-05-21 1974-12-17 Merestechnikai Kozponti Fault-indicating circuit for a flow-metering system
US3811126A (en) * 1972-06-07 1974-05-14 Smelting Refining And Mining C Alarm system
US3792470A (en) * 1972-07-17 1974-02-12 Johnson Service Co Coded tone multiplexed alarm transmission system
US4144528A (en) * 1976-12-29 1979-03-13 Compalarm Systems Co. Alarm system
US4253091A (en) * 1977-01-05 1981-02-24 Mobil Oil Corporation Method and apparatus for detection of alarm conditions
CN106823226A (zh) * 2017-02-20 2017-06-13 广州市景彤机电设备有限公司 一种智能消防系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441502A (en) * 1940-08-01 1948-05-11 American District Telegraph Co Unit transmitter and signaling system
US2938197A (en) * 1954-09-14 1960-05-24 Automatic Fire Alarm Company Automatic alarm transmitter
US2996652A (en) * 1956-11-21 1961-08-15 Automatic Fire Alarm Company Battery charging and supervisory apparatus for closed circuit alarm systems
US3002105A (en) * 1959-08-20 1961-09-26 Charles A Cady Emergency power supply
US3085235A (en) * 1959-11-18 1963-04-09 Morse Signal Devices Inc Power supply for burglar or fire alarm
US3060416A (en) * 1960-03-18 1962-10-23 Honeywell Regulator Co Supervised signal system
US3176283A (en) * 1962-02-15 1965-03-30 Honeywell Inc Supervised annunciator
US3267450A (en) * 1964-01-06 1966-08-16 Honeywell Inc Alarm apparatus
US3267288A (en) * 1964-10-20 1966-08-16 Newmark Products Inc System for floating a battery on a load line
US3500377A (en) * 1966-10-21 1970-03-10 American District Telegraph Co Noninterfering electrical signaling system
US3505531A (en) * 1966-11-15 1970-04-07 Bendix Corp Control circuit for electrical systems having redundant power supplies

Also Published As

Publication number Publication date
FR2021981B1 (fr) 1973-04-06
NL6915785A (fr) 1970-05-04
DE1952229C3 (de) 1975-04-10
BE740214A (fr) 1970-04-13
US3618069A (en) 1971-11-02
DE1952229A1 (de) 1970-05-06
FR2021981A1 (fr) 1970-07-24
NL158952B (nl) 1978-12-15
DE1952229B2 (de) 1974-08-29
GB1257729A (fr) 1971-12-22

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