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Class Information
Number: 340/547
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Intrusion detection > Door or window movement > Specified sensor > Magnetic sensor
Description: Subject matter in which movement is detected by a device containing or responsive to, a magnet or electromagnet.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
6417770 Security spacer member for a window Jul. 9, 2002
6407660 Magnetic sensor Jun. 18, 2002
6400267 Wireless reed switch-based burglar alarm Jun. 4, 2002
6400266 Door sensor for a trailer Jun. 4, 2002
6348861 Binary multi-code combination sensor Feb. 19, 2002
6317048 Magnetic field sensor Nov. 13, 2001
6310549 Wireless security system Oct. 30, 2001
6310548 Method and system for door alert Oct. 30, 2001
6304177 Switching assembly for an exit alarm lock Oct. 16, 2001
6249224 Latch integrated, tamper resistant, electro-magnetic alarm switch Jun. 19, 2001
6218939 Security and monitoring device for an emergency exit system having a door light or a window light Apr. 17, 2001
6215396 Portable motion detector and alarm system and method Apr. 10, 2001
6185773 Remote control mechanism for a locker Feb. 13, 2001
6170273 Interactive display unit for refrigerated foods Jan. 9, 2001
6137403 Sash sensor and method of sensing a sash using an array of multiplexed elements Oct. 24, 2000
6124792 Latch integrated, tamper resistant, electro-magnetic alarm switch Sep. 26, 2000
6104288 Door mounted audio reminder Aug. 15, 2000
6100793 Integrated vehicle and building alarm system Aug. 8, 2000
6067014 Cord tamper method and apparatus May. 23, 2000
6061554 Electromagnetic interference suppressing device May. 9, 2000
6011469 Overhead door position sensor mounting device Jan. 4, 2000
6002332 Passive garage door operator system Dec. 14, 1999
5977873 Alarm switch Nov. 2, 1999
5963137 Alarm device for monitoring an individual's movement and/or need for assistance Oct. 5, 1999
5936522 Multiple movable windows for security system setup and operation Aug. 10, 1999
5905429 Audio label May. 18, 1999
5883579 Garage door status indicating system Mar. 16, 1999
5880659 Magnetic switch assembly for detecting unauthorized opening of doors or windows Mar. 9, 1999
5874878 Magnetic proximity switch system with slide-by anti-defeat machanism Feb. 23, 1999
5869934 Barricade light control switch apparatus Feb. 9, 1999
5856781 Refrigerator door alarm system Jan. 5, 1999
5844458 Resilient and compressible magnet module for door channel installation Dec. 1, 1998
5844481 Intrusion detector for security systems Dec. 1, 1998
5825289 Combined alarm system and window covering assembly Oct. 20, 1998
5786761 Gate opening alarm with resetting disable means Jul. 28, 1998
5777552 Curtain door alarm Jul. 7, 1998
5713621 Vehicle rolling shutter with door-ajar and compartment light switch Feb. 3, 1998
5712621 Security system with variable inductance sensor Jan. 27, 1998
5708409 Vehicle safety device Jan. 13, 1998
5705982 Intrusion detection, register and indication apparatus Jan. 6, 1998
5689236 Remote garage door position indicator Nov. 18, 1997
5673021 Magnetic switch assembly for detecting unauthorized opening of doors or windows Sep. 30, 1997
5668533 High security balanced-type, magnetically-actuated proximity switch system Sep. 16, 1997
5656990 Vehicle safety device Aug. 12, 1997
5633626 Self-testing security sensor for monitoring closure of vault doors and the like May. 27, 1997
5610581 Combination bar lock and electrical alarm system for doors and windows Mar. 11, 1997
5602526 Vehicle open door warning system Feb. 11, 1997
5576678 Apparatus and method for magnetic proximity switch alteration Nov. 19, 1996
5552769 Combined alarm system and window covering assembly Sep. 3, 1996
5534849 Time multiplexed, false alarm resistant magnetically actuated security system Jul. 9, 1996

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