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| Number | Title | Issue Date |
| 7855641 | Window fan security system A window fan security system comprises a window fan housing, fan assembly, motion detector, audible alarm, light, and control panel, whereby the system is placed in a window, and when motion is detected proximate to the exterior of the window an alarm and/or light i... | 12/21/2010 |
| 7352284 | Security material and fasteners therefor Security material such as cloth, either normal strength or armored, or fragile webbing into which electronic micro-devices are woven to detect and react to tampering of the monitored article at the scene or via a network. Also disclosed are fasteners that permit reu... | 04/01/2008 |
| 7132768 | Human body detecting device A human body detecting device for detecting an approach of a human body includes a sensor electrode provided in a housing and having detecting portions for detecting the approach of the human body to the housing. Each of the detecting portions is provided at a respe... | 11/07/2006 |
| 7119681 | MEMS based garage door sensor A MEMS based overhead garage door intrusion sensor for a security system, such as a residential/home security system, for detecting an intrusion through an overhead garage door. In one embodiment, a MEMS sensor accelerometer is mounted with a sensitive axis of the M... | 10/10/2006 |
| 6859145 | Safety system A safety system that is configured to enhance the ability of individuals to identify points of egress in the case of actual fires or emergency situations. The safety system may include a power source, memory, a central processing unit (CPU), sensor(s), audible indic... | 02/22/2005 |
| 6774791 | Method and apparatus for detecting moving objects, particularly intrusions A method and apparatus for detecting movement of an infrared-radiating object within a monitored space is provided. The method of includes exposing the monitored space to a passive infrared sensor having a first sensor element generating a first polarity signal when... | 08/10/2004 |
| 6557611 | Security window screen 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 appara... | 05/06/2003 |
| 6388572 | Selectively positional intruder alarm for sliding windows and doors 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 ... | 05/14/2002 |
| 6348863 | Method and apparatus for detecting moving objects, particularly intrusions A method and apparatus for detecting for detecting intrusions, such as intrusions through a door or window of a room, in a manner which ignores movements in other adjacent regions, is provided. The method of detecting intrusions with respect to a monitore... | 02/19/2002 |
| 6054921 | Alarm for a roll shutter assembly An alarmed roll shutter assembly includes a frame, a shutter that moves along the frame from a closed position to an open position, a pressure actuated sensor disposed in close proximity to the shutter and an alarm that detects actuation of the pressure a... | 04/25/2000 |
| 5552769 | Combined alarm system and window covering assembly A combined alarm system and window covering assembly includes a top housing, a bottom rail having two ends, a covering, a conductive wire and two resiliently biased reed relay switches. The covering is mechanically coupled to the top housing and the botto... | 09/03/1996 |
| 5440289 | Combined alarm system and window covering assembly A combined alarm system and window covering assembly has a top housing assembly, a bottom housing and a covering. A conductive wire extends from the top housing assembly down to the bottom assembly and up from the bottom assembly to the top housing assemb... | 08/08/1995 |
| 5274357 | Combined alarm system and window covering assembly A combined alarm system and window covering assembly includes a top housing, a bottom rail, a covering, a continuous conductive wire which has a first end and a second end and an alarm device. The alarm device has a first input terminal and a second input... | 12/28/1993 |
| 5168258 | Protective device for padlocks for truck cargo doors A protective device for a padlock as typically used on the cargo doors of a trailer portion of a truck/trailer combination. Particularly, the device is intended to protect the lock from the environment and to provide a warning of unauthorized access. The ... | 12/01/1992 |
| 4758824 | Alarm for a blind An alarm device, suitable for use with venetian blinds and other retractable blinds and curtains, comprises, secured together as a single unit, a piezoelectric motion sensor, an amplifier circuit electrically connected to the piezoelectric sensor to ampli... | 07/19/1988 |
| 4347502 | Early warning electrical sound alarm system for pet door structure The present invention provides an early warning sound alarm system for signalling unauthorized entry or attempted entry through a pet door when the pet door is covered and not in use. The alarm system in accordance with the invention, comprises in combina... | 08/31/1982 |
| 4281320 | Combined protective barrier and burglar alarm A protective barrier and burglar alarm in the form of a window blind includes a plurality of slats which may be compacted to open the blind, the slats being supported by flexible cords including electrical conductors establishing an electrically-conductiv... | 07/28/1981 |
| 4160972 | Alarm apparatus for movable barrier members A normally-open magnetic reed switch is mounted on the bottom of a venetian blind or similar barrier and a magnet is mounted in the window sill to hold the switch closed when the barrier is in its normal position. When closed, the switch shorts a timing c... | 07/10/1979 |
| 4146293 | Entry detection screen An entry detection screen, sometimes called a protective screen, is formed having an alarm circuit sewed onto the screen to fix it in place. One form of the circuit includes double wires so that two series circuits can be provided. The double wires can be... | 03/27/1979 |
