FR505784A - Appareil avertisseur de tentatives de cambriolages et de vols - Google Patents

Appareil avertisseur de tentatives de cambriolages et de vols

Info

Publication number
FR505784A
FR505784A FR505784DA FR505784A FR 505784 A FR505784 A FR 505784A FR 505784D A FR505784D A FR 505784DA FR 505784 A FR505784 A FR 505784A
Authority
FR
France
Prior art keywords
burglaries
theft
attempted
alarm device
alarm
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
Other languages
English (en)
Inventor
Frederick Cressall
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
Application granted granted Critical
Publication of FR505784A publication Critical patent/FR505784A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/1004—Alarm systems characterised by the type of sensor, e.g. current sensing means
    • B60R25/1006—Mechanical sensors, e.g. pendulums
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/141—Details
    • H01H35/142—Damping means to avoid unwanted response

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)
FR505784D 1919-03-31 1919-11-06 Appareil avertisseur de tentatives de cambriolages et de vols Expired FR505784A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB805619A GB148602A (en) 1919-03-31 1919-03-31 An improved burglar or thief alarm

Publications (1)

Publication Number Publication Date
FR505784A true FR505784A (fr) 1920-08-06

Family

ID=9844930

Family Applications (1)

Application Number Title Priority Date Filing Date
FR505784D Expired FR505784A (fr) 1919-03-31 1919-11-06 Appareil avertisseur de tentatives de cambriolages et de vols

Country Status (4)

Country Link
DE (1) DE363553C (fr)
FR (1) FR505784A (fr)
GB (1) GB148602A (fr)
NL (1) NL9556C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885504A (en) * 1955-08-18 1959-05-05 Yurtz Joseph Gregory Automobile theft alarm
US2919318A (en) * 1957-07-08 1959-12-29 John H Brown Portable alarm
CN104228674B (zh) * 2013-06-09 2017-04-05 北汽福田汽车股份有限公司 防拆卸报警装置及具有其的汽车

Also Published As

Publication number Publication date
GB148602A (en) 1920-08-03
DE363553C (de) 1922-11-10
NL9556C (nl) 1923-10-15

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