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5155474 |
Photographic security system
An intrusion detection apparatus for detecting the presence of an intruder in a forbidden space comprises a sensor, an illumination system, a sound system and a still camera. When the sensor...
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5153560 |
Apparatus for detecting presence of person inside room having door
An apparatus for detecting the presence of a person or persons inside a room having a door. The apparatus comprises a pyroelectric infrared sensor and a piezoelectric air pressure sensor. The...
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5144285 |
Pulsed ultra sonic swimming pool alarm apparatus
Pulsed ultrasonic apparatus for monitoring a swimming pool includes a transmitter housing securable to a child and provides a swept frequency pulsed output from a transducer within the housing when...
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5136213 |
Motion detecting light controller system
A motion detecting light controller system which includes a light bulb socket adapter having a control circuit for the light which is controlled. The control circuit utilizes a first LED and a...
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5134386 |
Intruder detection system and method
A microbend-sensitive optical fiber is embedded in a thin pliable padding and laid under an area to be protected. An amplitude-modulated optical light beam is launched into one end of the fiber....
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5130613 |
Fluorescent lamp arrangement with an integral motion sensor
A fluorescent lighting arrangement including a lamp controller for controlling the light intensity of fluorescent lamps in response to a motion detecting arrangement which receives its operating...
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5117223 |
Combination portable alarm system and storage container for parts thereof
A portable alarm system for a construction site or the like is provided with and consists of a cabinet, a stanchion supported on the cabinet, an alarm unit supported on the stanchion, and a key pad...
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5107249 |
Intrusion detection system having improved immunity to false alarm
A multi-sensor intrusion detection system having improved immunity to false alarm is disclosed. The sensor being less susceptible to the generation of false alarm has its output signal processed...
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5103207 |
Taut wire sensing apparatus
A sensor post has a hollow interior and a semi-rigid surface which flexes in response to an applied force. Sensor bars are mounted to the semi-rigid surface in a cantilevered fashion, and include...
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5102103 |
Child safety fence
A child safety fence for preventing unsupervised children from entering swimming pools includes a plurality of spaced apart substantially vertical supports having a flexible line extending between...
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5099226 |
Intelligent security system
An intelligent security system capable of sensing the presence of an object to be identified, interrogating the object with an encrypted code, and receiving and processing an encoded response from...
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5099223 |
Safety device, in particular a safety gate, which can be activated by a moving body
Safety device which can be activated, in particular, by a moving body such as a person or an object, in particular a safety gate, comprising a post (2) carrying, at a distance from the ground, a...
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5097454 |
Security door with improved sensor for detecting unauthorized passage
A control system for a revolving door includes an ultrasonic sensor having multiple sensor heads. The door has a housing, and multiple moveable compartments formed by door wings attached to and...
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5093650 |
Portable alarm device
A portable alarm device for monitoring areas against burglary includes an alarm and a power supply connected to the alarm by an alarm circuit. A reception sensor is connected to a variable...
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5091713 |
Inventory, cash, security, and maintenance control apparatus and method for a plurality of remote vending machines
A monitoring system for monitoring a vending machine at a remote location, the monitoring system including an inventory sensing system for providing a continuous update of the inventory in the...
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5089806 |
Barrier and alarm for blocking a passageway
The apparatus described herein is a chain with a warning sign attached to it, that incorporates an audible alarm signal which is activated when a person moves the chain away from an egress that it...
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5084697 |
Error-free control circuit for alarm detectors
An error-free control circuit for burglar alarm detectors which eliminates false alarms and facilitates setting the sensitivity of the detectors by providing an audible pre-warning signal via some...
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5084696 |
Signal detection system with dynamically adjustable detection threshold
A signal detection system with dynamically adjustable detection threshold includes a signal detection comparator having a dynamically adjustable threshold which adjusts the detection sensitivity of...
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5083110 |
Window alarm system
A window alarm system includes a plurality of small, self-contained units strategically located on the window. The units are either spring-controlled or transducer-controlled, and are set to...
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5083106 |
Intruder detection system with programmable countdown timer for self-supervision
An intruder detection system includes a self-supervision feature which, on the basis of detecting authorized pedestrian traffic within a region under surveillance, alerts the system user of...
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5063371 |
Aircraft security system
An aircraft security system includes a central control unit, several remotely located cluster controllers and a plurality of intrusion sensors associated with and controlled by each cluster...
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5061997 |
Control of visible conditions in a spatial environment
Apparatus for the control of visible conditions in various spatial environments is disclosed along with a method for operating said apparatus. The apparatus employs programmed central controller...
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5053748 |
System for the safe and secure transportation of valuable articles, such as bank notes, cheques
In a system for transporting bank notes between system terminals in a container for valuables, referred to as a cassette, each cassette is provided with an electronic unit or sealing provision. The...
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5030941 |
Electronic article surveillance system incorporating an auxiliary sensor
To reduce the occurrence of false alarms, the disclosed system incorporates an auxiliary sensor for detecting the presence of a shopper passing through the electronic article surveillance device,...
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5027104 |
Vehicle security device
A vehicle security device is disclosed which includes a multiplicity of video cameras mounted in a vehicle in hidden fashion, and designed to be activated responsive to sensing of a condition such...
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5012455 |
Security door with improved sensor for detecting unauthorized passage
A control system for a revolving door includes an ultrasonic sensor having multiple sensor heads. The door has a housing, and multiple moveable compartments formed by door wings attached to and...
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4996521 |
Intrusion deterrent apparatus
An intrusion deterrent apparatus which activates a water spraying device in a specific area to prevent unauthorized activities within that area such as the application of graffiti. Connected with...
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4992701 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Motion detecting light controller system
A motion detecting light controller system which includes a light bulb socket adapter having a control circuit for the light which is controlled. The control circuit utilizes a first LED and a...
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4990897 |
Method and apparatus for detecting and recognizing impacts by measuring impedance variation
The present invention relates to a method and apparatus for detecting and for recognizing impacts by measuring changes in impedance. The device comprises a sensor (6) and an external electronic...
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4990888 |
Unitary alarm sensor and communication package for security alarm system
A security alarm system includes a transponder having a housing enclosing both a sensor and associated circuit means in a unitary package. The housing base includes barrel-shaped connectors, and a...
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4978943 |
Method and apparatus for making a vibration-responsive intrusion detection barrier
A new and improved apparatus and process for continuously forming an intrusion detection barrier coil from a strip of barbed metal tape is provided. The apparatus includes a series of rollers for...
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4970436 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Motion detecting light controller system
A motion detecting light controller system which includes a light bulb socket adapter having a control circuit for the light which is controlled. The control circuit utilizes a first LED and a...
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4962473 |
Emergency action systems including console and security monitoring apparatus
There is described an emergency action system which is an integrated security control and communications system employed for relatively large and secure installations such as embassies, military...
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4952905 |
Data communication system
A communication system utilizing the electrical-supply wiring of mains circuit has an interface unit for an intruder-sensor. Unit has a transmitter for sending FSK-modulated messages and a...
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4949074 |
Method of intrusion detection
A method of intrusion detection which comprises the steps of: projecting a beam of infrared radiation toward a field of view from a detection device and receiving the radiation of the beam...
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4943799 |
Portable alarm system with sealed enclosure
A portable alarm system includes a compact portable sealed housing having an electronic alarm control circuit therein. An electrical a.c. cord supplies power to the control circuit and plugs into...
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4942464 |
Surveillance device for the protection of an automatic delivery apparatus
A surveillance device for the protection of an automatic delivery apparatus operable by code carriers, in particular of a money dispenser, has a video camera (12), which is arranged to be triggered...
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4942384 |
Composite type crime preventive sensor
A composite type crime preventive sensor processes output detection signals from a plurality of sensor units of mutually different detection systems for ranking the signals into a plurality of...
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4933668 |
Aircraft security system
An aircraft security system includes a central control unit, several remotely located cluster controllers and a plurality of intrusion sensors associated with and controlled by each cluster...
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4931770 |
Protection system
A system for transferring information stored on a disc, tape or film is provided which prevents unauthorized or unintentional use or disclosure to third parties of the information contained on the...
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4931769 |
Method and apparatus for controlling the operation of a security system
A security system includes a display for displaying user prompts to select from a set of alternative options for controlling the system, so that the user may respond by selecting one of the...
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4929926 |
Intrusion detection barrier
An intrusion detection barrier, comprises a coiled wire fence deployable over the ground or over another fence, a sensor wire tensioned between a pair of wire-supporting posts anchored in the...
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4929925 |
Alarm system
An alarm system monitors a region, and includes a transducer supported to aim toward a boundary of the region. The transducer transmits sonic waves and receives echoes. The system generates an...
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4920331 |
Security barrier with intrusion sesning and delaying means
A security installation for a property includes an imperforate protective barrier, a plurality of spaced posts extending upwardly from the top of the barrier and a plurality of spaced trip wires...
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4915359 |
Security apparatus
Security apparatus which has an outer concertina coil of barbed tape with an inner coiled electrical conductor, which may also be made from a concertina coil of barbed tape, positioned within the...
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4912455 |
Alarm systems
A detector for an alarm system receives a disturbance signal and transmits an alarm signal to a remote station. A group of such detectors can be connected in circuit to operate a common alarm. The...
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4906975 |
Vibration responsive intrusion detection barrier
An intrustion detection barrier is provided comprising inner and outer coils defined by helical barbed tape. The inner coil comprises a vibration-responsive intrusion detection cable securely...
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4903010 |
Intrusion detection switch housing
A threadably installable intrusion detection unit. The unit has a generally cylindrical housing with an exterior threaded surface and an end portion formed to receive a screw driver. An operative...
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4884064 |
Intruder detection and control apparatus
A method of and apparatus for detecting free-ranging pests, for example mice, without providing an attractant material. The presence of a pest is sensed by at least one of a plurality of sensors, a...
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4866426 |
Magnetic amplifier housing and detector for an improved tamper alarm system
A magnetic amplifier housing uses a base, dowel and shunt to magnetizable terial to concentrate the magnetic field of a ring magnet through a Hall Effect transistor to provide an improved detector...
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