Abstract: A concealable burglar alarm system for automatically generating a warning in response to either unauthorizd opening of a window or breakage of the associated window pane. The system includes a translucent, generally rectangular sending unit which is adapted to be permanently secured upon a window sill adjacent to a window being monitored. The sending unit includes a generally planar mounting base, and an associated magnetic reed switch having a stationary portion and a pivotally deflectable portion. Relative displacement between the reed switch moveable portion and the stationary portion causes an electrical circuit to close, activating a remotely disposed electronic circuit. The base of the sending unit preferably includes an integral, outwardly extending cylindrical projection upon which the coiled portion of a reed switch activation spring is mounted and flangeably secured. The spring includes a pair of outwardly extending first and second ends which are biased apart.

Abstract: An accident data recorder for short-time recordation and storage of data and events relating to an accident of motor vehicles, comprising pickups for sensing, for example, wheel revolutions to determine the travelled distance and speed of the vehicle. In addition to these wheel sensors, capacitance-based acceleration sensors are provided whose output signals along with the output signals of the wheel sensors and with other status data relating to the operation of the vehicle, are continuously recorded at storage locations of a fixed storage. For this purpose, an addressing logic is provided which operates in a closed counting loop and, as soon as a final address is reached, jumps back to the starting address to overwrite the initially stored data. This cyclic data storage is interrupted by the occurrence of a trigger event defining an accident, with the result that the last recorded data, including a predetermined after-travel time, are freezed.

Abstract: An emergency exit device of the push bar type to control entry and exit of personnel, including a crossbar which may be pushed toward a door to actuate mechanisms which retract a latch bolt, and an alarm and key system for selective alarm actuation. The alarm and key system includes internal control mechanisms which are mounted in a tamper-proof housing, which may be accessed only by operating the push bar and actuating the alarm. A light emitting diode in the alarm assembly indicates alarm state, the presence of power, and a preset delay interval for alarm actuation. A variety of internal and external key operation configurations may be employed. A fastening arrangement for the exit device housing provides security against unauthorized manipulation of alarm components. Where mounting the alarm assembly within the exit device frame, an internal mounted guard member may include a protection flange to block access to the alarm.

Abstract: A fire detecting arrangement has a longitudinal fire detector having conductors separated by a substance whose resistance decreases with temperature and whose charge acceptance capability increases with temperature. The detector is supplied with a rectangular waveform swinging between +5 and -5 volts through resistors, one of which is high compared with the other. High temperature will therefore cause a greater volt drop across the detector during positive waveform portions than during negative waveform portion, the potential division effect of the unequal resistors being enhanced by the increased charging current. Contamination or damage merely decreases the resistance of the detector and the lack of charging current means that the inequality of the voltage drops during positive and negative portions of the drive waveform is not so marked.

Abstract: A heat detection system comprised of a length of thermocouple cable positioned proximate to the area to be controlled, said cable having the capacity to detect hot spots or areas, said cable being electrically connected to a plurality of transmitters for generating signals as a function of excessive temperature and/or line break, said transmitters, in turn, being electrically connected to one or more of a plurality of alarms adapted to indicate said excessive temperature and/or line break.

Abstract: A winker device comprising a left winker having a left winker lamp for a turning to the left and a left position lamp, a right winker having a right winker lamp for a turning to the right and a right position lamp, a winker switch means adapted for a switching for the left and right position lamps, and a position lamp relay for connecting a power source to the left and right position lamps.The position lamp relay opens when the winker switch means is operated for the turning to either the left or right.The invention comprises a winker device, in which, in a travelling state, a pair of position lamps are constantly lit on both sides and, in a cornering state, either of the position lamps at the corresponding side to a winker to be then caused to flash is extinguished while the winker is flashing, thus favorably reducing the power consumption of a battery.

Abstract: A compliance aid for medication including electronic circuitry to remind the patient when the next dose is due, in which removal of a dose of medicine interrupts individual conductors within the medication package and resets a timer and alarm. The electronic circuitry may be integrally housed within an original medication package or the electronic circuitry may be housed so as to be added to an existing medication package. Additionally, a radio telemetry linkup may be established between some electronic circuitry associated with the medication packaging and other electronic circuitry including the timer and alarm system. The compliance aid may be particularly adapted for use with a medication packaging system conventionally known as a blister package, which is a multi-layered strip packaging technique.

Abstract: At least two magnetic-reed switches are mounted at spaced angular locations beneath the scale of a Bourdon-type pressure gage wherein the needle tip carries a permanent magnet. The reed switches change their respective states upon sensed-pressure descent to first and second predetermined levels of pressure, respectively indicative of different impending needs to switch a new container into the line of pressure delivery to beverage-dispensing apparatus. In one form, the impending needs reflect corresponding situations of remaining gas content of the cylinder, for room temperature storage and for cold-room storage, respectively; and a manual switch at the gage enables the gage to perform, as is appropriate for the particular situation of stored-container temperature. In another form, the second or additional magnetic-reed switch is positioned beneath the scale for operation upon a sensed low level of gas-pressure effectiveness for beverage dispensing.

Abstract: An alarm system and method for monitoring the temperature of a liquid contained in a reservoir. The system comprises a temperature sensing probe for sensing the temperature of the liquid. A sensing circuit is associated with the probe to generate a temperature indicating signal representative of the liquid temperature. A calibration circuit is provided for calibrating the temperature signal relative to a reference signal. Converter means is provided to convert the calibrated temperature signal to a binary signal indicative of sensed temperatures of the liquid whereby to feed comparator circuits having preset limit detectors to initiate an alarm signal when the temperature signal exceeds a predetermined value. The comparator circuits also feed a display device to indicate the temperature of the liquid.

Abstract: A spring loaded lever is tied down by a resistor and released when an over supply of voltage is applied to the resistor from a command source. The lever can have a string attached to it such that it will open a container when the resistor breaks. Or the lever can have a weight on it which will break a rod which is being used to tie down a load. A rod can be a fuse such that when the fuse is broken an electrical signal can be generated to give an indication of the release.

Abstract: A ski tracking alarm comprises a self-contained unit for mounting on a ski between the toe and heel bindings so that it is located beneath the ski boot during skiing. The unit comprises an audible alarm device and a triggering device for actuating the alarm to produce an audible alarm signal on separation of the ski boot from the ski. The triggering device includes a spring-loaded actuator which is held in an inoperative position by pressure of the ski boot acting on the unit, but springs up into an operative position when the ski boot is separated from the ski.

Abstract: The present invention provides a security panel in the form of a hybrid integrated circuit, comprising a plurality of laminae, at least one of which is provided with a semiconductive coating, said coating not being on the outside of the panel, the semiconductive coating not being present on a narrow edge zone of the lamina to which it is applied, electrodes being provided close to two opposite edges of the panel, one of said electrodes being continued along the narrow edge zone from which the conductive coating has been omitted to an area provided with integrated circuitry necessary for the operation of an alarm system, said area being provided within the laminae and also being connected with the second of said electrodes, electric connections being attached to the integrated circuitry area.

Abstract: A pressure monitor is provided for gas pressure supplied to a patient. The monitor includes a pair of spaced contacts in the form of crank arms. A spring member is fixed at one end and is deflectable by a pneumatic cushion supplied with air from the gas supplied to a patient. The pneumatic cushion interacts with the resiliency of the spring member to urge the spring member to an intermediate position between a pair of fixed contacts. Too low a gas pressure will permit the spring member to engage one contact, while too high a gas pressure will cause the spring member to engage the other contact. Closure of the spring member against either contact energizes a respective alarm. In addition, there is provided a preset pneumatic-electrical switch connected to an oxygen supply line to indicate low oxygen pressure.