NL9556C - Alarmeertoestel - Google Patents

Alarmeertoestel

Info

Publication number
NL9556C
NL9556C NL15031A NL15031A NL9556C NL 9556 C NL9556 C NL 9556C NL 15031 A NL15031 A NL 15031A NL 15031 A NL15031 A NL 15031A NL 9556 C NL9556 C NL 9556C
Authority
NL
Netherlands
Prior art keywords
alarm device
alarm
Prior art date
Application number
NL15031A
Other languages
English (en)
Inventor
Frederick Cressall
Original Assignee
Frederick Cressall
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 Frederick Cressall filed Critical Frederick Cressall
Application granted granted Critical
Publication of NL9556C publication Critical patent/NL9556C/nl

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)
NL15031A 1919-03-31 1920-06-02 Alarmeertoestel NL9556C (nl)

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
NL9556C true NL9556C (nl) 1923-10-15

Family

ID=9844930

Family Applications (1)

Application Number Title Priority Date Filing Date
NL15031A NL9556C (nl) 1919-03-31 1920-06-02 Alarmeertoestel

Country Status (4)

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

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
DE363553C (de) 1922-11-10
FR505784A (fr) 1920-08-06
GB148602A (en) 1920-08-03

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