Abstract: A magnet seat for engagement with a magnet in a warning system includes a base and a column extending upward from a side face of the base for extending through the magnet and having a stop formed on a free end of the bar for permanently fixing the position of the magnet on top of the base. Multiple slits are defined in the side face of the base for receiving therein glue. Supporting bars are concentrically located on the side face of the base for surrounding and supporting the magnet.

Abstract: A battery operated, portable alarm device integrated with a telescoping security bar containing a triggering switch and a tilt sensitive switch, either of which will activate the alarm circuit when an intruder tries to enter a room through the door. A pressure switch, located on the top section of the security bar, which is positioned just under the doorknob shaft, will be pressed in as the door is slightly opened. The opening action, of the door, causes the security bar to rotate through an arc until the distance from the floor to the pressure switch has been shortened and forces the shaft of the doorknob to press against the pressure switch and activates the alarm. The intruder might try to defeat the pressure action of the doorknob, by sliding a thin piece of cardboard or other thin material under the door in an attempt to push the security bar base away from the door, causing the bar to fall.

Abstract: A hidden security device for a container of cargo transportation includes a case provided with an electronic processing unit; a tightly-seized device, including a plate, extending from the case, on which a displacement sensor communicating with the electronic processing unit is provided at a predetermined place; and a tightly-seized part, perpendicularly extending from the plate and having a flexing end; and an antenna, communicating with the electronic processing unit and extending out from the case to the flexing end of the tightly-seized part. The present security device can accurately record the time and frequency of opening the door plates of the container, and meanwhile it is disposed on the inner side of the door plates, and is readily concealed.

Abstract: A portable security alarm system including a movement detecting and signal transmitting member for mounting on or proximate to the object whose movement is to be detected, a signal receiving and alarm generating member for receiving a signal from the movement detecting and signal transmitting member and producing a security response, a remote control for actuating and deactuating the signal receiving and alarm generating member, an environmental monitoring member for sensing an environmental condition and providing a signal to the signal receiving and alarm generating member, a visual information gathering member for gathering visual information and providing a signal to the signal receiving and alarm generating member, an audio output member for receiving a signal from the signal receiving and alarm generating member and generating an audio output, and components for delivering a security notification to remote recipients. A security network that includes the alarm system is also disclosed.

Abstract: A modular intrusion detection system that includes a base unit having a primary intrusion detection device and a housing. The primary housing includes a base housing section and an outer cover. The base housing section includes a first mounting interface. A plurality of different secondary housing sections having a second mounting interface which can be attached to the first mounting interface of the base housing section are provided. The secondary housing sections may have a functional device, such as a CCD camera or a microphone, associated therewith. The camera or microphone may be activated to an alarm signal generated by the intrusion detection device. A plurality of different base units, each having an intrusion detection device, may also be provided wherein each of the base units is attachable to each of the secondary housings, and secondary devices associated therewith, to provide flexibility in assembling individual devices.

Abstract: A portable security alarm device for use with personal baggage wherein the personal baggage includes an opening and closing mechanism, the security alarm device including a trigger mechanism for determining when the personal baggage is in at least a partially opened position, an alarm mechanism for emitting an audible alarm when activated, an operator input device operable for selectively activating various states of operation of the device including an activated state, an off state, and a programming stat wherein a user can reprogram the access code inputted into the operator input device to activate certain states of operation. The present device likewise includes a Panic button for immediately activating the alarm mechanism and a removably attachable/detachable mechanism which enables the present device to be portable for attaching and detaching to a plurality of different personal baggage.

Abstract: The present invention relates to a folding door brace to prevent unwanted entry of an intruder. The present invention is a folding, portable door brace that may be easily installed and removed on a wide variety of door types. The door brace also has a motion sensor and an alarm to alert any occupants of the room to any attempts to open the door. A number of interchangeable foot pads are provided to allow the door brace to be used with a variety of different floor surfaces.

Abstract: A wireless communication processing system for performing wireless communication processing operation between a plurality of apparatuses includes a first wireless communication processing device provided to first one of the plurality of apparatuses and having a first unique ID, and a second wireless communication processing device provided to second one of the plurality of apparatuses and having a second unique ID, in which in response to a connection request issued from a third wireless communication processing device to the first wireless communication processing device, the first wireless communication processing device transmits the unique ID of the third wireless communication processing device as a third unique ID to the second wireless communication processing device.

Abstract: An adjustable alarm device for windows and doors is installed between the door or window frame and the door or window sash. The longitudinal axis of the alarm device is preferably horizontal. When engaged, movement of the door or window in an open direction will activate the alarm. The body of the alarm device is elongate, tubular and telescoping. The body comprises an outer tube that receives an inner tube. The body of the alarm device may be locked in an extended position by way of a cam mounted on the inner tube and positioned within the body so that when the inner and outer tubes of the body are twisted about their longitudinal axis, the cam body will engage the inner surface of the outer tube in a releasable frictional locking engagement. The alarm device is coupled to one end of the inner tube.

Abstract: A portable security alarm system including a movement detecting and signal transmitting member for mounting on or proximate to the object whose movement is to be detected, a signal receiving and alarm generating member for receiving a signal from the movement detecting and signal transmitting member and producing a security response, a remote control for actuating and deactuating the signal receiving and alarm generating member, an environmental monitoring member for sensing an environmental condition and providing a signal to the signal receiving and alarm generating member, a visual information gathering member for gathering visual information and providing a signal to the signal receiving and alarm generating member, an audio output member for receiving a signal from the signal receiving and alarm generating member and generating an audio output, and components for delivering a security notification to remote recipients.

Abstract: The invention provides a security system comprising a security apparatus and a monitoring unit which provide a user with real time security information. The security apparatus comprises a housing, a mounting bracket attached to the outside of the housing, the mounting bracket configured for attachment to a secured item and comprising a switch, the switch configured to produce a first indication when the mounting bracket is attached to the secured item and a second indication when the mounting bracket is removed from the secured item, a power source positioned inside the housing, a transceiver positioned inside the housing and connected to the power source and an electronic circuit positioned inside the housing and connected to the power source, the transceiver and the switch of the mounting bracket. The transceiver is configured for communication with the monitoring unit.

Abstract: A remote intrusion detection radio appliance includes a housing having a passive motion detector and related circuitry to monitor and warn of unwanted intrusions, by operating an external radio unit or cellular telephone plugged into the appliance. The appliance, when activated, broadcasts an audio output and then monitors an area in which it is located by audio and/or video for an intruder.

Abstract: A security alarm with a wired remote triggering device consists of a triggering switch with two spring blades and a flexible sleeve tube holding both spring blades together. The security alarm with a strap is hung on the doorknob inside a door or placed inside a drawer, and the triggering device is set up from outside of the door or the drawer by pulling off the flexible sleeve tube. The two spring blades will thus be clipped in a gap between the door and its frame to keep the alarm circuitry open. When any unauthorized person opens the door or the drawer, the triggering device will fall off from the gap; thus the two spring blades will automatically open to keep the alarm circuitry in close status so as to activate the alarm, so the theft deterrent purpose is consequently achieve.

Abstract: A portable security alarm system which can be installed on a temporary basis and removed from an object whose movement is to be detected including a motion detecting and radio signal transmitting member for mounting proximate the object whose movement is to be detected, a member for selectively coupling and decoupling the motion detecting and radio signal transmitting member relative to the object whose movement is to be detected, a combined radio signal receiving and alarm generating member for receiving a signal from the combined motion detecting and radio signal transmitting member and producing an alarm, a remote control for actuating and deactuating the radio signal receiving and alarm generating member, and components for providing object identification information identifying the object whose movement is to be detected and distance measurement information for measuring the distance moved by the object.

Abstract: An open window security lock consisting of a staff having a suction cup for attachment of the staff to the window which allows a sliding window sash to open a small amount for ventilation but not opening enough to admit an intruder. The staff upper end has a switch to sound an alarm if the upper end is moved away from touching the fixed upper frame. An alarm switch can be a displacement detector, motion detector or vibration detector. The staff length is adjustable. A length clamping can be a detent button, staff wall set screw, metal collar with a set screw, hose clamp, or an eccentrically pinned lever. The alarm may include wireless transmitter communicating with a wireless receiver.

Abstract: A signaling retention device that is configured to retain an element in a particular position and to emit an audible and/or visual signal. The signaling retention device may include a power source, memory, a central processing unit (CPU), sensor(s), audible indicator(s), light source(s), switch(es), camera(s), a transceiver, a microphone, impact tool(s), and aromatic element(s) and may be configured in the form of a character, such as a cartoon character or the like. The power source may be any suitable power source, such one or more batteries (rechargeable or non-rechargeable) or the like, and may be removable or non-removable. Similarly, the memory, CPU, audible indicator(s), light source(s), switch(es), camera(s), transceiver, microphone, impact tool(s), and aromatic element (s) may be any types well known in the art.

Abstract: The present invention is an apparatus for securing a window or similar opening and includes a fair of frames slidably mated to one another. The apparatus further includes one or more sensors or switches that would be triggered in the event that the apparatus is moved or removed, thereby initiating an alarm.

Abstract: A portable security alarm system which can be installed on a temporary basis and removed from an object whose movement is to be detected including a motion detecting and radio signal transmitting member for mounting proximate the object whose movement is to be detected, a member for selectively coupling and decoupling the motion detecting and radio signal transmitting member relative to the object whose movement is to be detected, a combined radio signal receiving and alarm generating member for receiving a signal from the combined motion detecting and radio signal transmitting member and producing an alarm, a remote control for actuating and deactuating the radio signal receiving and alarm generating member, an information gathering device adapted to receive the predetermined signal, to gather information relating to the movement, and to transmit the information, and a remote notification device adapted to receive the information from the information gathering device, to establish data communication with a r

Abstract: A tilt switch includes an insulating housing with an inner peripheral wall surface which confines an accommodation chamber for rollably receiving an electrically conductive ball. First and second electric contact terminals have upper end portions inserted into the chamber and having contact surfaces to contact the ball when the housing is in an upright position so as to make an electrical connection therebetween. The inner peripheral wall surface includes a shoulder segment for facilitating the rolling movement of the ball to break the electrical connection when the housing is tilted to a predetermined angle.

Abstract: A portable information-providing apparatus comprising a position detector, a direction detector, a processor, a memory, and information output device. The position detector provides data of a use's position. The direction detector provides data of a direction as determined by the user. The processor operates to correlate said position and direction data with information of features in the user's surroundings as stored in the memory. The information output device provides the information to the user, the information being related to a feature in the user's surroundings generally along the direction determined by the user.

Abstract: A security spacer member (10) is provided for a security window (100) having a magnet (106) retained within its frame (104) and a magnet (110) retained within its sash (112) such that the two magnets (106, 110) mate upon closing of the security window (100) to maintain a security measure, such as an alarm, in a deactivated state. The security spacer member (10) has a shank portion (12) having first and second ends (14, 16) and one of the ends houses a magnet (30). In use, the security spacer member (10) is placed so as to prop open the security window (100), and the magnet (30) housed in the security spacer member (10) is positioned to mate with the magnet (106) in the frame (104) in order to maintain the security measure on its deactivated state despite the fact that the security window (100) is open.

Abstract: A portable selectively positional intruder alarm for sliding windows and doors is installed in a window or door frame with its longitudinal axis parallel to a sliding window sash or door at a selected distance therefrom to provide security while allowing the window to be partially open for ventilation and will emit an alarm either when the window or door is opened further or when the device is removed from the window or door frame. The device has a telescoping tubular housing with end plugs at each end. One end plug is fixed to the housing and the other is slidably mounted in the end of the housing. The end plugs are removably held against the opposed tracks of the sliding window sash or sliding door by the force of a compression spring within the housing. An alarm circuit disposed in the outer tube includes a battery, an audio transducer, a normally-open switch, a normally-closed switch, and may also include a visual alarm and battery condition indicator.

Abstract: A switch status monitoring system (10) includes a switch signal processor (16) that operates in either of a supervised mode or an unsupervised mode for each monitored switch (12). Selection of the operating mode is made via configuration data provided to the switch signal processor, for example, from an applications processor (20). In this manner, reconfiguration of the mode of monitoring, supervised or unsupervised, of any particular switch within a system is accomplished by providing revised configuration data and without changes or modifications to the switch signal processor hardware. As will be appreciated, the present invention has application in for example door or window monitoring systems and in other similar security system applications.

Abstract: The present invention is a method for monitoring equipment. A computer having an enclosure defining an enclosure space is initially provided. Disposed within the enclosure space is a central processing unit including a memory and an arithmetic logic unit. The computer is provided with communication means operably connected to the central processing unit for permitting communication between the central processing unit and a peripheral device. An alarm sensor is disposed within the enclosure space of the computer. When the alarm sensor senses an alarm condition, the security system outputs a data signal indicative of the alarm condition for sounding an alarm, for example.

Abstract: A warning light device attachable to, or as a permanent part of, a front door of an automatic dishwasher or oven, the front door being openable to a generally horizontal very low position above the floor. In one embodiment, the device includes a housing attachable to a surface of the front door. A warning light mounted on the housing receives electric power from a miniature storage battery mounted within the housing. An angle-sensitive switch mounted in the housing is operably interconnected between the warning light and the storage battery. The switch is open and the warning light off when the front door is closed, while the switch is closed and the warning light on when the front door is open. The warning light, when on, is sufficiently visible to warn or alert a person nearby the dishwasher that the front door is open and to be avoided. This invention may also be embodied in such appliances at time of manufacture.

Abstract: A device for indicating/limiting the overall displacement of a movable member from a preset position, wherein the device (1) is selectively positionable to accomodate variation in allowable displacement of the movable member (32, 38, 39, 42, 49, 50, 52) prior to preventing displacement of the movable member or for providing an indication of any such displacement of the member.

Abstract: A portable security alarm system which can be installed on a temporary basis and removed from an object whose movement is to be detected including a motion detecting and radio signal transmitting member for mounting proximate the object whose movement is to be detected, a member for selectively coupling and decoupling the motion detecting and radio signal transmitting member relative to the object whose movement is to be detected, a combined radio signal receiving and alarm generating member for receiving a signal from the combined motion detecting and radio signal transmitting member and producing an alarm, a remote control for actuating and deactuating the radio signal receiving and alarm generating member, an information gathering device adapted to receive the predetermined signal, to gather information relating to the movement, and to transmit the information, and a remote notification device adapted to receive the information from the information gathering device, to establish data communication with a r

Abstract: An anti-burglar alarming door bell is disclosed, and in particular, a door bell having dual wires non-polar, with anti-burglar and alarming function. The door bell comprises a detecting mechanism, a door bell/anti-burglar mode selection, a first voicing mechanism, a second voicing mechanism, a micro-computer controlled switch circuit and an alarming activation mechanism having a first indication mechanism and a second mechanism and a press button. The microcomputer receives triggered signals from the detecting mechanism (such as magnetic-spring switch or infrared detecting device) to cause the voicing mechanism to produce a sound. By means of the switching circuit, the first indication mechanism or the second indication mechanism of the alarming activation mechanism is lighted.

Abstract: A portable security alarm system which can be installed on a temporary basis and removed from an object whose movement is to be detected including a motion detecting and radio signal transmitting member for mounting proximate the object whose movement is to be detected, a member for selectively coupling and decoupling the motion detecting and radio signal transmitting member relative to the object whose movement is to be detected, a combined radio signal receiving and alarm generating member for receiving a signal from the combined motion detecting and radio signal transmitting member and producing an alarm, and a remote control for actuating and deactuating the radio signal receiving and alarm generating member.

Abstract: A removable security device for a portable article that includes an alarm housing with an audible electronic alarm circuit and a locking mechanism, a receiver that attaches to the portable article. The alarm housing has a pair of opposed rails that define a channel and the receiver has a pair of opposed flanges that mate with and that slide into the channel. A lock bolt, operated by the locking mechanism, extends from the alarm housing into a shaped depression in the receiver to secure the alarm housing to the receiver, and retracts from the depression to permit removal of the alarm housing from the receiver. The audible alarm is triggered by a motion detector or by cutting an attached cable.

Abstract: A portable room safety security system for use in hotel rooms, apartments, vehicles having sleeping areas (such as motor homes, RV's, trailers, etc.) and the like. The system integrates into a single housing a smoke detector and a movement sensor, both serially connected to an audio alarm and a visual alert. The system further includes a magnetically isolated slot for holding hotel key cards, as well as a series of hooks for holding several key rings. Also available is a bracket mounted to the housing for holding a flashlight. The system is optionally operated using a remote control device, and may include circuitry enabling automatic telephone dialing to alert outside assistance in the event of an alarm. Two types of structure may be used to suspend the device from an associated door. The first is a pliable extension bar and hook which suspends the device from a door knob. The second is a bracket extension piece enabling the device to be hung from the top of a door.

Abstract: The present invention is a method for monitoring equipment. A computer having an enclosure defining an enclosure space is initially provided. Disposed within the enclosure space is a central processing unit including a memory and an arithmetic logic unit. The computer is provided with communication means operably connected to the central processing unit for permitting communication between the central processing unit and a peripheral device. An alarm sensor is disposed within the enclosure space of the computer. When the alarm sensor senses an alarm condition, the security system outputs a data signal indicative of the alarm condition for sounding an alarm, for example.

Abstract: A shock-activated, sonic alarm is silent when in a stored or cocked condition. In the cocked or armed condition, a spring-loaded plunger (160) is restrained by a ring (200) from activating an alarm (100). When the alarm is dealt a sharp blow, the plunger (160) is dislodged and freed from the ring so that its spring (170) forces it against a cap (120) or a switch (410), resulting in a loud alarm. The alarm can be placed in any location where it is desirable to sound an alarm in response to a physical trauma, such as in a traffic barrier or dangerous goods shipment.

Abstract: A window mounted motion detector comprising a motion detector equipped with an upper and lower rod so that the assembly can be used to prop open a window sash and to detect potential intruders approaching the window.

Abstract: A portable door lock and alarm is adapted to connected to the hinge carried between a door and a doorjamb. The portable door lock and alarm provides an enclosure housing a lock mechanism which includes a claw defining small and large hinge passages adapted to surround small or large door hinges. A bolt, extending from the claw and through the enclosure, is threaded onto a knob. After attachment of the claw to the hinge, rotation of the knob retracts the claw into the enclosure, increasing the pressure between the door and doorjamb and the enclosure. An attempt to open the door will increase the pressure on the enclosure; however, in a typical application, the door will crack, break or deform before the enclosure of the lock is crumpled. A circuit provides a switch that is closed if an attempt is made to open the door, thereby resulting in activation of an annunciator.

Abstract: A marker is provided for use by emergency service personnel entering a room of a building, to keep the door from latching closed while he/she searches the room, and later help him find the door to exit the room, and to indicate to other rescuers that a search is in progress or has been completed. The marker includes a housing (12, FIG. 1) and a door clamp (14) mounted on the housing and constructed to fit on a door to prevent complete closing of the door. The housing holds an audible alarm generator (20) which generates sound beeps to help a searcher find the door in an environment of thick smoke. With the door clamp holding the door ajar, the sound beeps can be heard from outside the room, so another searcher can determine that a search is in progress. The alarm is settable to generate a different pattern of sound beeps, to indicate that a search is in progress, or has been completed. It also generates light flashes. The door clamp can include a length of wire that extends around the outer edge of a door.

Abstract: A gate opening alarm for swimming pool fences and the like will sound an audible alarm when the gate is opened without first pressing a reset/pass switch button that is mounted out of children's reach. An alarm housing and a magnetically actuatable switch are mounted on either the gate or frame, with a permanent magnet mounted closely adjacent to the switch on the other gate component so that they will be separated when the gate is opened. A reset switch button is provided so that an adult may disable the alarm for a short period to pass though the gate. If the gate is not then closed, the alarm will sound. Opening the gate without pressing the reset button will cause the alarm to immediately sound. The switch is rearmed when the gate is closed after opening or after a short period if the reset button is pushed but the gate is not opened. If the gate is left opened, the alarm will sound for a period of typically 3 minutes, then will stop to check whether the gate has been closed.

Abstract: An alarm and locking device for sliding doors and windows is provided. The device incorporates a suction pad for attachment to a fixed door or window frame adjacent to an edge of the sliding section of the door or window, such that movement of the sliding door or window into contact with the device actuates alarm means associated with the device. The method of attachment of the alarm and locking device employs a flexible suction pad enclosing the lower end of the device, which is applied to the glass panel of the door and then distended at its center by the action of an over-center lever, causing a partial vacuum between the pad and the glass panel.

Abstract: A small-sized alarm device is hung on a doorknob to emit an alarm sound upon detecting that a human body contacts or approaches the doorknob. The alarm device has data processor, such as a calculator and the like, in addition to an alarm and an electro-optic display for displaying data processed by the data processor and information related to the operation of the alarm. To the alarm device is rotatably mounted a hanging member for hanging the alarm device on a doorknob. The hanging member is fit into the case of the alarm device when in not use or is erected from the case when the alarm device is hung on the doorknob.

Abstract: A security apparatus for buildings, vehicles and the like includes a switch mounted adjacent to a closure access member. A housing mounted adjacent to the closure access member receives a member movable between first and second positions. When the movable member is in the first position, a magnet mounted in the member is disposed in close proximity to the switch to magnetically move the switch contact to an open position. When the movable member is moved to a second position, the magnet is magnetically decoupled from the switch enabling the switch contact to close to ground completing a circuit to activating the alarm. In another embodiment, the magnet is mounted in a body. A rod extends from the body and carries a holder and a lock cylinder engagement member at another end. The lock cylinder engagement member is releasibly insertible into a lock cylinder to position the magnet adjacent to a switch mounted on the closure member.

Abstract: A portable, battery operated personal alarm and motion detector has two passive infrared (PIR) elements for sensing motion in two corresponding and oppositely directed fields of view, with each field of view being easily and selectably variable during set-up. A rotatable turret is associated with each PIR element and has several windows such that each window is selectably alignable with the PIR element by manual rotation of the turret. Each of the windows is provided with a lens or lens cluster which, when aligned with the PIR element, defines a different field of view in which motion is detectable by that element. An integrally and pivotally attached base member provides a support by which the device can be tilted to, and maintained in, a selectable orientation for purposes of aiming. Different modes of operation are selectable, including a manually armed alarm mode in which the person carrying the device only needs to depress a panic button in order for the device to emit a high decibel alarm.

Abstract: An expandable intrusion detection screen for use with an audible electronic alarm has first and second screen panels slidably movable in parallel relation to each other to be expandable to fit within different sized window openings. The alarm is mechanically mounted and retained within an internal peripheral channel in the frame of one of the screen panels and has an intrusion detector extending outward through the frame of the screen panel for detecting the separation of the screen panel from any part of the window against which the detector is placed when positioned in a window opening.

Abstract: A device is mounted inside the interior space defined by a cabinet to alert a supervising adult that a child has opened the cabinet door. The device is mounted so that an outer face of its housing is directed outwardly adjacent to the opening closed by the door. A perpendicular mounting end is attached to an inner sidewall surface of the cabinet. An activator switch has a lever or button biased to project outwardly from the outer face of the housing. The closing of the cabinet door moves the projecting lever into a depressed position. When the cabinet door is opened, movement of the lever into a projecting position activates an audible alarm. In alternate embodiments, one or more of the components of the device may be provided in a separate housing part mounted outside the cabinet.

Abstract: A portable sliding window lock consists of a molded resilient triangular block having a suction cup securely fastened to its base. The suction cup is fastened to the base so that a jamming tapered tip on the triangular block is angled slightly toward the mounting surface. The portable sliding window lock is mounted on the vertical surface of a flat window pane adjacent the frame of a sliding window to intercept and jam the window frame with the sliding window partially open. This prevents forcing the partially open window any further open to gain access to an area. An optional feature includes an audible alarm mounted on the resilient triangular block which is set-off by a switch activated by force applied to a sliding glass window engaging the resilient triangular block. The audible alarm is activated by a contact switch, motion sensing switch or pressure switch embedded in the molded resilient triangular block.

Abstract: Alarm apparatus which generates a repetitive sound wave having at least two pulses of predetermined frequencies within a predetermined interval of time. A resonator generates the clock frequency therefor. The resonator may have a low tolerance of less than about 0.1 percent so that at least two pulses may be detected by a receiver having a similarly low tolerance so that false triggering of the receiver by other transmitters or background noise may be prevented. A plug is inserted into the alarm housing to maintain circuitry for initiating operation thereof open. Pulling of the plug from the housing allows the circuitry to close to initiate operation of the alarm. A push button is provided on the end of the plug to close the circuitry for initiating operation of the alarm while the plug is inserted into the apparatus. Once the alarm has been initiated, the circuitry is such that the alarm cannot be inactivated except by removal of the internal power source.

Abstract: An independent alarm system which is carried by a housing member designed to be located adjacent to or within building openings, and at various other site locations, or adjacent to specific to-be-protected objects. The housing member is free standing, for example, swingably suspended from a window frame, ceiling or a separate frame. The housing member has an agitation sensor and a proximity or tilt sensor incorporated therein and electrically wired to a first signal. When the housing member is agitated while in its original position, or when it is moved from its original position to a second position, the agitation sensor and/or the proximity/tilt sensor is activated, which in turn causes the first signal to be actuated. The agitation and proximity/tilt sensors are both battery powered. By being pulsed, the alarm circuit may be always "on", yet be fully operational for a period of thirty six months, and greater using a single set of batteries.

Abstract: The present invention provides a low burden visual POWER ON indicator for a self-powered electrical circuit protection device. The visual indicator includes a current transformer for producing an induced current in direct proportion to the current supplied to an electrical device protected by the protection device. The induced current is summed and rectified. An energy accumulator stores a predetermined voltage required to operate the protection device. The stored voltage is controlled by an accumulation switch which in turn is controlled by a hysteresis control circuit. The hysteresis control circuit includes an operational amplifier which is biased by a stable reference voltage. When the voltage on the energy accumulator is equal to the stable reference voltage the operational amplifier produces a HIGH output signal. When the voltage on the energy accumulator is less than the stable reference voltage the operational amplifier produces a LOW output signal.

Abstract: A generally rectangular housing defines an interior cavity therein. A conventional battery powered alarm circuit is supported within the interior cavity. A supporting suction cup is securable to the housing to permit attachment of the housing to a convenient surface. The housing defines an elongated slot in proximity to the circuit battery and a pair of spring contacts are provided for completing the battery power circuit connection to the alarm circuitry. An insulating tab is receivable within the alarm housing through the slot and extends between one of the spring contacts and its associated battery terminal to interrupt the battery power to the alarm circuit. The insulative tab is coupled to a second suction cup by a flexible line. The alarm system is installed by positioning the alarm housing and the second suction cup on opposite sides of a movable door or window portion.

Abstract: A security system and method for monitoring security in the vicinity of a location perimeter is provided. The security system includes security sensors positioned in a detecting relation to the location perimeter for detecting a condition indicating a potential violation of security in the vicinity of the perimeter. The security sensors have a normal, negative state indicative of no violation of security and a positive state indicative of a potential violation of security. A detection indicator operatively communicates with the security sensors for storing information indicating whether a security sensor is in the positive or negative state. A signal receiver operatively communicates with the detection indicator. A signal transmitter is activated from outside the location perimeter, and transmits a control signal to the signal receiver.

Abstract: A completely self-contained and portable alarm system that senses a condition in which a refrigerator or freezer door is not fully closed using a plurality of spring-tempered metallic sensor switches and which provides an audible tone from a piezoelectric transducer. By means of a selector switch, the alarm can occur either immediately upon opening the appliance door, after a predetermined delay has expired, or the alarm can be disabled by removing power from the electronic circuit. Compared to other refrigeration alarm systems this invention is not integral to the appliance itself; it senses only door-ajar conditions; is powered by common direct current means; and its mounting location is highly flexible. It can be easily installed by magnetic means on either side, or top of the appliance near the door by simply placing it where desired, accommodating a large number of new as well as older appliance models.