GB2167587A - Improvements in or relating to intruder alarms - Google Patents

Improvements in or relating to intruder alarms Download PDF

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Publication number
GB2167587A
GB2167587A GB8429704A GB8429704A GB2167587A GB 2167587 A GB2167587 A GB 2167587A GB 8429704 A GB8429704 A GB 8429704A GB 8429704 A GB8429704 A GB 8429704A GB 2167587 A GB2167587 A GB 2167587A
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GB
United Kingdom
Prior art keywords
alarm
transmitter
intruder
switch
signal
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.)
Withdrawn
Application number
GB8429704A
Inventor
Philip George Johnson
Brian Robert Igglesden
Alexander Kenneth Webster
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 GB8429704A priority Critical patent/GB2167587A/en
Publication of GB2167587A publication Critical patent/GB2167587A/en
Withdrawn legal-status Critical Current

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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
    • B60R25/1012—Zone surveillance means, e.g. parking lots, truck depots
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

An intruder alarm is described in which a first assembly comprises a trembler switch and a transmitter, the switch being operatively connected to the transmitter such that actuation of the trembler switch causes the transmission of a signal from the transmitter, and in which a second assembly comprises a receiver adapted to receive the signal from the transmitter and alarm means responsive to the signal received by the receiver. The transmitter is preferably a fixed frequency radio transmitter and the receiver is a radio receiver. The alarm can provide a system for protecting a number of articles such as parked vehicles from thieves and vandals. A first assembly is provided for each article and interference with an article causing movement thereof operates the transmitter and thus the alarm means of a second assembly which may be situated at a remote location. The alarm means may provide an audible or visible signal, arranged to floodlight an area or arranged to operate television cameras.

Description

SPECIFICATION Improvements in or relating to intruder alarms This invention relates to intruder alarms and is particularly concerned with an intruder alarm system for protecting a number of articles from unwanted depredations.
Broadly speaking the present invention provides an intruder alarm wherein a first assembly comprises a trembler switch and a transmitter, the switch being operatively connected to the transmitter such that actuation of the trembler switch causes the transmission of a signal from said transmitter and wherein a second assembly comprises a receiver adapted to receive the signal from said transmitter and alarm means responsive to the signal received by the receiver.
In the use of this alarm, the trembler switch is mounted in or on an article to be protected together with the transmitter so that movement of the article causes the trembler switch to activate the transmittes to send a signal to the receiver which then operates the alarm means. A number of articles may be protected by an appropriate number of first assemblies but only one second assembly may be required.
The present invention is particularly useful for protecting cars, vans, lorries and the like in storage depots and parking areas from thieves and vandals.
Motor car dealers in particular have problems in preventing their stocks of new and used vehicles from the unwelcome attentions of thieves, who may steal all or parts of the vehicles, and of vandals. With the present invention a first assembly may be placed in each vehicle and so arranged that an attempt to open the vehicle or any action which might result in movement of the vehicles operates the trembler switch and thus the transmitter. One second assembly may be provided and so arranged that it will operate the alarm means when the transmitter of any first assembly is operated The alarm means can take many forms and may be an audible or visible alarm which may be located in the vicinity of the article to be protected or at a remote location, such as a police station. Thus the alarm means maytake the form of an alarm bell, a hooter or flashing lights.In addition the alarm means may be arranged to operate floodlighting in a region where an intruder is detected so as to facilitate apprehension of the intruder.
In order to enable the invention to be more readily understood, an example thereof will now be described in further detail.
In this example, an intruder alarm comprises a housing which contains an off-normal pendulum switch connected to a small fixed frequency radio transmitter provided with its own battery. The switch is arranged to switch on the radio transmitter when the switch is physically disturbed as by being shaken or jolted. The housing may be a simple plain box-like housing which can be stood in a suitable location or may be provided with a clip, sucker or some form of means for placing the housing in position.
The intruder alarm also comprises a radio receiver set to receive a signal transmitted by the transmitter and connected to an alarm in such a way that the alarm is operated when a signal is received. The alarm is conveniently a bell or flashing light and may be located adjacent the receiver or at some remote location such as a police station.
In the use of the intruder alarm to protect motor cars in a storage area, a housing containing a pendulum switch and transmitter is provided for each car and a receiver is provided at a convenient location and connected to an alarm bell. If a thief or vandal interferes with a car, the switch will be operated to activate the transmitter and an alarm signal will be generated at a remote location. This can be arranged so that the alarm signal is audible or visible to the intruder thereby deterring him from further action. Alternatively, the alarm signal could be such as to be not detectable by the intruder if it is hoped to apprehend him in an act of theft or vandalism.
It will be appreciated that many variations of the present intruder alarm are possible and that it can be adapted for many purposes. Furthermore, the alarm system may be connected to television catneras so that a record of any intruders can be obtained.
1. An intruder alarm, wherein the alarm comprises at least one first assembly and a second assembly, and wherein the first assembly comprises a trembler switch and a transmitter, the switch being operatively connected to the transmitter such that actuation of the trembler switch causes the transmission of a signal from said transmitter, and the second assembly comprises a receiver adapted to receive the signal from the transmitter and alarm means responsive to the signal received by the receiver.
2. An alarm as claimed in Claim 1, wherein the transmitter is a fixed frequency radio transmitter and the receiver is a radio receiver.
3. An alarm as claimed in Claim 1 or 2, wherein the trembler switch is an off-normal pendulum switch.
4. An alarm as claimed in any one of Claims 1 to 3, wherein the first assembly is contained within a housing.
5. An alarm as claimed in Claim 4, wherein the housing is provided with means for securing the housing in position in or on an article to be protected.
6. An alarm as claimed in any one of Claims 1 to 5, wherein the alarm means is arranged to provide an audible or visible alarm signal.
7. An alarm signal as claimed in Claim 6, wherein the alarm means is remote from the first assembly.
8. An alarm as claimed in Claim 6, wherein the alarm means is in the vicinity of the first assembly such that an intruder who actuates the first assembly is made aware of the alarm signal.
9. An alarm as claimed in any one of Claims 1 to 8, wherein the alarm means is connected to television means for obtaining,a record of an intruder.
10. An intruder alarm in accordance with Claim 1
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (16)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improvements in or relating to intruder alarms This invention relates to intruder alarms and is particularly concerned with an intruder alarm system for protecting a number of articles from unwanted depredations. Broadly speaking the present invention provides an intruder alarm wherein a first assembly comprises a trembler switch and a transmitter, the switch being operatively connected to the transmitter such that actuation of the trembler switch causes the transmission of a signal from said transmitter and wherein a second assembly comprises a receiver adapted to receive the signal from said transmitter and alarm means responsive to the signal received by the receiver. In the use of this alarm, the trembler switch is mounted in or on an article to be protected together with the transmitter so that movement of the article causes the trembler switch to activate the transmittes to send a signal to the receiver which then operates the alarm means. A number of articles may be protected by an appropriate number of first assemblies but only one second assembly may be required. The present invention is particularly useful for protecting cars, vans, lorries and the like in storage depots and parking areas from thieves and vandals. Motor car dealers in particular have problems in preventing their stocks of new and used vehicles from the unwelcome attentions of thieves, who may steal all or parts of the vehicles, and of vandals. With the present invention a first assembly may be placed in each vehicle and so arranged that an attempt to open the vehicle or any action which might result in movement of the vehicles operates the trembler switch and thus the transmitter. One second assembly may be provided and so arranged that it will operate the alarm means when the transmitter of any first assembly is operated The alarm means can take many forms and may be an audible or visible alarm which may be located in the vicinity of the article to be protected or at a remote location, such as a police station. Thus the alarm means maytake the form of an alarm bell, a hooter or flashing lights.In addition the alarm means may be arranged to operate floodlighting in a region where an intruder is detected so as to facilitate apprehension of the intruder. In order to enable the invention to be more readily understood, an example thereof will now be described in further detail. In this example, an intruder alarm comprises a housing which contains an off-normal pendulum switch connected to a small fixed frequency radio transmitter provided with its own battery. The switch is arranged to switch on the radio transmitter when the switch is physically disturbed as by being shaken or jolted. The housing may be a simple plain box-like housing which can be stood in a suitable location or may be provided with a clip, sucker or some form of means for placing the housing in position. The intruder alarm also comprises a radio receiver set to receive a signal transmitted by the transmitter and connected to an alarm in such a way that the alarm is operated when a signal is received. The alarm is conveniently a bell or flashing light and may be located adjacent the receiver or at some remote location such as a police station. In the use of the intruder alarm to protect motor cars in a storage area, a housing containing a pendulum switch and transmitter is provided for each car and a receiver is provided at a convenient location and connected to an alarm bell. If a thief or vandal interferes with a car, the switch will be operated to activate the transmitter and an alarm signal will be generated at a remote location. This can be arranged so that the alarm signal is audible or visible to the intruder thereby deterring him from further action. Alternatively, the alarm signal could be such as to be not detectable by the intruder if it is hoped to apprehend him in an act of theft or vandalism. It will be appreciated that many variations of the present intruder alarm are possible and that it can be adapted for many purposes. Furthermore, the alarm system may be connected to television catneras so that a record of any intruders can be obtained. CLAIMS
1. An intruder alarm, wherein the alarm comprises at least one first assembly and a second assembly, and wherein the first assembly comprises a trembler switch and a transmitter, the switch being operatively connected to the transmitter such that actuation of the trembler switch causes the transmission of a signal from said transmitter, and the second assembly comprises a receiver adapted to receive the signal from the transmitter and alarm means responsive to the signal received by the receiver.
2. An alarm as claimed in Claim 1, wherein the transmitter is a fixed frequency radio transmitter and the receiver is a radio receiver.
3. An alarm as claimed in Claim 1 or 2, wherein the trembler switch is an off-normal pendulum switch.
4. An alarm as claimed in any one of Claims 1 to 3, wherein the first assembly is contained within a housing.
5. An alarm as claimed in Claim 4, wherein the housing is provided with means for securing the housing in position in or on an article to be protected.
6. An alarm as claimed in any one of Claims 1 to 5, wherein the alarm means is arranged to provide an audible or visible alarm signal.
7. An alarm signal as claimed in Claim 6, wherein the alarm means is remote from the first assembly.
8. An alarm as claimed in Claim 6, wherein the alarm means is in the vicinity of the first assembly such that an intruder who actuates the first assembly is made aware of the alarm signal.
9. An alarm as claimed in any one of Claims 1 to 8, wherein the alarm means is connected to television means for obtaining,a record of an intruder.
10. An intruder alarm in accordance with Claim 1 substantially as hereinbefore described.
11. An intruder alarm system, comprising a plurality of first assemblies each of which comprises a trembler switch and a transmitter, the switch being operatively connected to the transmitter such that actuation of the trembler switch causes the transmission of a signal from said transmitter, and at least one second assembly comprises a receiver adapted to receive the signal from the or each transmitter and alarm means responsive to the signal received by the receiver.
12 A system as claimed in Claim 11, wherein the, or each, transmitter is a fixed frequency radio transmitter and the receiver is a radio receiver.
13. A system as claimed in Claim 11 or 12, wherein the trembler switch is an off-normal pendulum switch.
14. A system as claimed in any of Claims 11 to 13, wherein the alarm means is arranged to provide an audible or visible alarm signal.
15. A system as claimed in any one of Claims 11 to 14, wherein the alarm means is arranged to operate flood-lighting in a region where an intruder is detected by the or a first assembly.
16. A system as claimed in any one of Claims 11 to 15, wherein the alarm means is arranged to operate television cameras for obtaining a record of an intruder.
GB8429704A 1984-11-23 1984-11-23 Improvements in or relating to intruder alarms Withdrawn GB2167587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8429704A GB2167587A (en) 1984-11-23 1984-11-23 Improvements in or relating to intruder alarms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8429704A GB2167587A (en) 1984-11-23 1984-11-23 Improvements in or relating to intruder alarms

Publications (1)

Publication Number Publication Date
GB2167587A true GB2167587A (en) 1986-05-29

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Application Number Title Priority Date Filing Date
GB8429704A Withdrawn GB2167587A (en) 1984-11-23 1984-11-23 Improvements in or relating to intruder alarms

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GB (1) GB2167587A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291412A1 (en) * 1987-05-14 1988-11-17 Jaeger Device for detecting a fraudulent interference with a locking member
GB2276747A (en) * 1993-03-27 1994-10-05 Timothy Nalder Stephens Anti-theft alarm system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710371A (en) * 1970-02-18 1973-01-09 G Whalen Portable security alarm and alarm system
US3742478A (en) * 1971-11-03 1973-06-26 Transport Security Corp Circuit board motion sensitive switch
US4012611A (en) * 1975-03-03 1977-03-15 Cega, Inc. Inertia switch for anti-intrusion sensing systems
GB2000594A (en) * 1977-06-28 1979-01-10 Charbonnages Ste Chimique Movement detector
GB2070833A (en) * 1980-02-29 1981-09-09 Key Executive Safeguard Ltd Vehicle security system
GB2077473A (en) * 1980-06-09 1981-12-16 Baker David Geoffrey Improved switch and stock monitoring system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710371A (en) * 1970-02-18 1973-01-09 G Whalen Portable security alarm and alarm system
US3742478A (en) * 1971-11-03 1973-06-26 Transport Security Corp Circuit board motion sensitive switch
US4012611A (en) * 1975-03-03 1977-03-15 Cega, Inc. Inertia switch for anti-intrusion sensing systems
GB2000594A (en) * 1977-06-28 1979-01-10 Charbonnages Ste Chimique Movement detector
GB2070833A (en) * 1980-02-29 1981-09-09 Key Executive Safeguard Ltd Vehicle security system
GB2077473A (en) * 1980-06-09 1981-12-16 Baker David Geoffrey Improved switch and stock monitoring system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291412A1 (en) * 1987-05-14 1988-11-17 Jaeger Device for detecting a fraudulent interference with a locking member
FR2615255A1 (en) * 1987-05-14 1988-11-18 Jaeger DEVICE FOR DETECTING FRAUDULENT INTERVENTION ON A LOCKING MEMBER
GB2276747A (en) * 1993-03-27 1994-10-05 Timothy Nalder Stephens Anti-theft alarm system

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)