Burglar and intruder detection system
First Claim
1. A burglar and intruder detection system for photographing burglars and other intruders, said system comprising a mechanically trippable camera of the automatic advance type for sequentially taking a plurality of successive pictures upon being repeatedly tripped, an electric motor, a shaft for being rotatably driven by the motor, the shaft having a cam presenting at least one lobe, trip means actuatable by the cam lobe for repeatedly tripping the camera upon operation of the motor, first electric switching means for providing electric power for initiating operation of the motor in response to detection of the presence of an intruder, delay means driven by the shaft for establishing a predetermined time interval following the initiation of motor operation, second electric switching means operable in response to the delay means for de-energizing the motor after the predetermined time interval, and concealment means for concealing and protecting the camera including an enclosure for the camera, electric motor and shaft, and a cover movable between enclosed positions concealing and an open position uncovering said camera for picture taking, means for driving said cover between said positions, said driving means moving said cover to its closed position in response to operation of the second switching means.
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Accused Products
Abstract
A burglar and intruder detection system photographs burglars and other intruders by use of a mechanically trippable camera of the automatic advance type for sequentially taking successive pictures upon being repeatedly tripped. An electric motor drives a shaft having a cam. A lever arrangement is actuated by cam lobes to repeatedly trip the camera when the motor operates. Electric power for motor operation is provided by a switch mat or other switching device in response to detection of the presence of an intruder. A thread follower on the shaft establishes a predetermined time interval following the initiation of motor operation, operating a switching device for de-energizing the motor after the interval is timed out. An enclosure having a movable cover protects the camera and associated lighting. Solenoids control movement of the cover.
13 Citations
10 Claims
- 1. A burglar and intruder detection system for photographing burglars and other intruders, said system comprising a mechanically trippable camera of the automatic advance type for sequentially taking a plurality of successive pictures upon being repeatedly tripped, an electric motor, a shaft for being rotatably driven by the motor, the shaft having a cam presenting at least one lobe, trip means actuatable by the cam lobe for repeatedly tripping the camera upon operation of the motor, first electric switching means for providing electric power for initiating operation of the motor in response to detection of the presence of an intruder, delay means driven by the shaft for establishing a predetermined time interval following the initiation of motor operation, second electric switching means operable in response to the delay means for de-energizing the motor after the predetermined time interval, and concealment means for concealing and protecting the camera including an enclosure for the camera, electric motor and shaft, and a cover movable between enclosed positions concealing and an open position uncovering said camera for picture taking, means for driving said cover between said positions, said driving means moving said cover to its closed position in response to operation of the second switching means.
- 7. A burglar and intruder detection system for photographing burglars and other intruders, said system comprising a mechanically trippable camera of the automatic advance type for sequentially taking a plurality of successive pictures upon being repeatedly tripped, an electric motor, a shaft for being rotatably driven by the motor, the shaft having a cam presenting at least one lobe, trip means actuatable by the cam lobe for repeatedly tripping the camera upon operation of the motor, first electric switching means for providing electric power for initiating operation of the motor in response to detection of the presence of an intruder, delay means driven by the shaft for establishing a predetermined time interval following the initiation of motor operation, second electrical switching means operable in response to the delay means for de-energizing the motor after the predetermined time interval, and concealment means for concealing and protecting the camera, the motor shaft being threaded, the delay means comprising a thread follower threaded on the motor shaft and movable along the motor shaft over a fixed distance by the thread follower occurring in said predetermined time interval.
- 9. A burglar and intruder detection system for photographing burglars and other intruders, said system comprising a mechanically trippable camera of the automatic advance type for sequentially taking a plurality of successive pictures upon being repeatedly tripped, an electric motor, a shaft for being rotatably driven by the motor, the shaft having a cam presenting at least one lobe, trip means actuatable by the cam lobe for repeatedly tripping the camera upon operation of the motor, first electric switching means for providing electric power for initiating operation of the motor in response to detection of the presence of an intruder, delay means driven by the shaft for establishing a predetermined time interval following the initiation of motor operation, second electrical switching means operable in response to the delay means for de-energizing the motor after the predetermined time interval, and concealment means for concealing and protecting the camera, the camera trip means comprising a first linkage element mounted for being movably contacted by the cam lobe, a second linkage element mounted for being movably engaged by the first linkage element each time the latter is contacted by the cam lobe, one end of the second linkage element including adjustable contact means for contacting a trip button of the camera, whereby the camera is tripped each time the first linkage element is contacted by the cam lobe.
Specification