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| Number | Title | Issue Date |
| 7355521 | Method and system for heating dies A method and system for monitoring the temperature of dies during the processing of thermoplastics. A non-contact infrared remote sensor is configured to remotely monitor each die of a cuber extruder. The face of the cuber dies is divided into four quadrants. A sens... | 04/08/2008 |
| 7336160 | Device for reading out from sensors in the engine compartment of a motor-vehicle In a device for reading out from sensors in a motor vehicle, the sensors can be read out particularly easily if each sensor has a transponder, the motor-vehicle has a coil provided for the energy transmission and the motor-vehicle has at least one reading antenna fo... | 02/26/2008 |
| 7315246 | Security and monitoring for containers A container security system has a container interior monitor portion with a container interior light sensing portion responsive to visible light. A different embodiment involves a monitoring device with a support, a door engaging member movable to and from an operat... | 01/01/2008 |
| 7187285 | System to detect mail in a mailbox In a first embodiment, the system 10 includes a sensor 12, a transmitter 14 coupled to the sensor 12 and adapted to transmit a signal, a receiver 16 adapted to receive the signal, and a remote indicator 18 coupled to the rec... | 03/06/2007 |
| 7053794 | Parking assist device and method for assisting parking A parking assist device (1) includes a camera (3) for capturing an image of an exterior of a vehicle, and a monitor (4) for displaying the captured image, and sets a target parking position by moving a target parking frame (11) displayed ... | 05/30/2006 |
| 6924740 | Electrical resistance monitoring device A device for indicating whether a conductive element has an electrical resistance equal to or less than a predetermined value or whether the conductive element is reliably connected to earth reference potential by a resistance equal to or less than a predetermined v... | 08/02/2005 |
| 6812450 | Method and an apparatus for monitoring a protected zone A method for monitoring a protected zone in which a light ray is transmited by an apparatus in the direction of the protected zone, a light ray reflected/remitted by an object disposed in the protected zone is received and the distance between the apparatus and the ... | 11/02/2004 |
| 6484133 | Sensor response rate accelerator An apparatus and method for sensor signal prediction and for improving sensor signal response time, is disclosed. An adaptive filter or an artificial neural network is utilized to provide predictive sensor signal output and is further used to reduce senso... | 11/19/2002 |
| 6483442 | Parking aid system A parking aid system having a driver initially stop the subject vehicle alongside a target parking position so that a mark provided inside a door coincides with the central line of the target parking position when assisting the driver with left reverse pa... | 11/19/2002 |
| 6377166 | Omni-directional movement sensor A movement sensor has a spherical body freely movable within a chamber. Radiation is passed through the chamber from at least two different sources. Detectors opposite the radiation sources produce signals responsive to the amount of detected radiation wh... | 04/23/2002 |
| 6218939 | Security and monitoring device for an emergency exit system having a door light or a window light A security and monitoring device for an emergency exit door has an electrical control device 15 with a microprocessor, an LED current-status display device 11, an emergency off switch device 3, and a key switch device 12 are located in use in a door termi... | 04/17/2001 |
| 5828303 | Apparatus for facilitating instruction of electronic security and electronic access control An apparatus is disclosed for facilitating instruction of electronic security and electronic access control, wherein the apparatus of the present invention may be used to provide instruction in electrical circuit theory as well as practical design, instal... | 10/27/1998 |
| 5717380 | Monitor hinge A monitor hinge having a rotary switch or potentiometer that is concealed within knuckles of the hinge for providing an indication when a door or a window is open. A monitor cable connects terminals on the rotary switch or potentiometer through the hinge ... | 02/10/1998 |
| 5341123 | Portable door alarm A portable door alarm having an alarm pushbutton switch extending from the back of the housing of the alarm has a first L-shaped member hingeably attached to a bottom portion of the housing. At the top of the first L-shaped member is a bracket hanger whic... | 08/23/1994 |
| 5317303 | Batteryless sensor used in security applications A batteryless sensor includes a small and concealed permanent magnet motor which operates as a generator to convert rotational or translational energy to an ersatz Vcc transient power supply via a mechanical arrangement to radiate a coded VHF oscillator s... | 05/31/1994 |
| 5253735 | Apparatus to sense and annunciate truck brake condition Three adjacent disks carried by an "S" cam shaft of a truck brake system sense motion of system components beyond predetermined limits to indicate need for adjustment and parts replacement and annunciate such information at a distance from the brake syste... | 10/19/1993 |
| 5250927 | Inside mounting door stop and alarm A door-stop alarm has a frame adapted to be affixed to an inside surface of a door, and a rotatable lever carried on the frame rotatably movable between a position engaging a floor surface and a position away from engagement with the floor surface. Means ... | 10/05/1993 |
| 4977392 | Security alarm system and switch Generally there is provided a cabinet alarm device having a protruding switch lever arm arranged such that it is held open during closure of a cabinet door, but is allowed to close when the cabinet door is opened. The switch is pivotally mounted and urged... | 12/11/1990 |
| 4841283 | Security hinge utilizing concealed radiative sensing to detect hinge position A hinge construction having radiative emitter and detector concealed within the body of the hinge's knuckles so as to be in communication with each other when the hinge leaves, and therefore the door, are in a closed position. This communication is permit... | 06/20/1989 |
| 4763111 | Door closer having sound generating function A door closer which is capable of issuing a selected sound or remaining silent when the associated door is opened and which can be mounted on an existing door opener mechanism. Two covers are provided which are mounted on opposite ends of a door closer me... | 08/09/1988 |
| 4721946 | Door control device with alarm switch An apparatus for monitoring the condition of a door which is biased toward a closed position by a closer arm connected to and biased by a door control device including a switch responsive to the position of the closer arm and signaling means connected to ... | 01/26/1988 |
| 4665386 | Auxiliary knob for gas valve to annunciate open condition An electro-mechanical auxiliary knob structure, releasably attachable to a rotatable knob of a valve, to annunciate an open condition of that valve operated thereby. The auxiliary knob pivots relative to its attachment structure to switch electric circuit... | 05/12/1987 |
| 4532498 | Burglar alarm device The present invention relates to a burglar alarm system for a building characterized by an electric sign adapted to illuminate a distress message in response to an unauthorized entry into the building. Forming a part of the alarm system is a series of swi... | 07/30/1985 |
| 4528558 | Door-open alarm device for a refrigerating appliance A door-open alarm device comprises alarm means connected to an electric circuit which comprises, arranged on the stationary part (11), a voltage source, a switch (13) having two positions in which the circuit is interrupted and closed respectively, electr... | 07/09/1985 |
| 4465997 | Exterior mounted door and window alarm switch An alarm switch for indicating when a latch or dead bolt for a door or window is locked or unlocked comprises a switch casing adapted for mounting on the exterior portion of the door or window frame or door or window; an electrical contact assembly mounte... | 08/14/1984 |
| 4438428 | Multiple function personal security alarm A multiple function alarm (10) for the security of an individual within a preselected area, the alarm (10) having substantially all its electrical components mounted to a board (12), includes a switch (14) for selecting the function the alarm is to perfor... | 03/20/1984 |
| 4394584 | Switching device for checking the closed position of a folding door In the case of prison cell doors, strong room doors and the doors of safes and strongboxes the problem exists of protecting a switch fitted to the door or its frame and which as a result of the closing movement of the door releases an alarm signal from ma... | 07/19/1983 |
| 4376276 | Door alarm with flexible switch actuator The alarm mechanism is electrically operated and includes an electrical switch having an arm which projects beyond the alarm's housing. The arm is semi-rigid and flexible such that it may be engaged to actuate the switch yet will deflect to one side to pe... | 03/08/1983 |
| 4277781 | Closure alarm with three-way switch A closure alarm contains a switch formed of a pair of axially aligned rounded-end contacts spring biased into end-to-end contact. A pivoted operating arm has a thin, knife - like insulating portion which is interposed between the contacts when the lever i... | 07/07/1981 |
| 4271405 | Alarm control system In an alarm control system for protecting a premises, a four conductor bus line leading from a master control station is extended about the interior perimeter of the premises. Sensors positioned near each port of entry to be monitored are connected in par... | 06/02/1981 |
| 4196422 | Intrusion alarm system A lock mechanism is included within the outer knob of a latch assembly. Associated with the inner knob is an alarm apparatus that includes a battery, a sound generator and a transducer for delivering an audible signal. The different components of the alar... | 04/01/1980 |
| 4194193 | Self-contained door alarm device A self-contained door alarm device is constructed with a housing, preferably fabricated from a high-strength insulator, such as ABS plastic, adapted to be secured above the upper edge of the door, to the doorframe. The alarm device contains a battery-oper... | 03/18/1980 |
| 3971006 | Multi directional motion and vibration triggering device A motion detector and unique switch forming a part thereof in which the switch includes a glass housing with a spherically shaped, concave surface in which a pool of mercury rests and a pair of separated annular contacts extending in parallel planes above... | 07/20/1976 |
| 3968484 | Spring-actuated security alarm for a door A security alarm device includes a housing of an electrically conductive material having a horizontal bottom base, a pair of upwardly extending end walls; a front face, and an upper end. An elongated rod member of an electrically conductive material havin... | 07/06/1976 |
