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Class Information
Number: 340/506
Name: Communications: electrical > Condition responsive indicating system > With particular system function (e.g., temperature compensation, calibration) > Alarm system supervision
Description: Subject matter where there is continuous monitoring of the operativeness of the alarm circuits in the system.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4947162 |
Terminal device for a monitoring and control system |
Aug. 7, 1990 |
| 4933667 |
Graphic annunciator |
Jun. 12, 1990 |
| 4933668 |
Aircraft security system |
Jun. 12, 1990 |
| 4931769 |
Method and apparatus for controlling the operation of a security system |
Jun. 5, 1990 |
| 4926162 |
High security communication line monitor |
May. 15, 1990 |
| 4924417 |
Environmental abnormality alarm apparatus |
May. 8, 1990 |
| 4916432 |
Smoke and fire detection system communication |
Apr. 10, 1990 |
| 4908602 |
Apparatus and method of testing a portable held button for emergency response system |
Mar. 13, 1990 |
| 4901316 |
Disaster prevention monitoring and control facility |
Feb. 13, 1990 |
| 4893324 |
Portable fire detection system |
Jan. 9, 1990 |
| 4887291 |
System for annunciating emergencies |
Dec. 12, 1989 |
| 4884222 |
Fire alarm system |
Nov. 28, 1989 |
| 4881060 |
Fire alarm system |
Nov. 14, 1989 |
| 4866594 |
Gas cylinder monitor and control system |
Sep. 12, 1989 |
| 4864519 |
Information transmission system |
Sep. 5, 1989 |
| 4855713 |
Learn mode transmitter |
Aug. 8, 1989 |
| 4853685 |
Switch monitoring arrangement with remote adjustment capability having debounce circuitry for accurate state determination |
Aug. 1, 1989 |
| 4849734 |
Self-diagnostic circuit for alarm-systems |
Jul. 18, 1989 |
| 4850018 |
Security system with enhanced protection against compromising |
Jul. 18, 1989 |
| 4847593 |
Transmission circuit of fire protection/security system |
Jul. 11, 1989 |
| 4847595 |
Alarm system |
Jul. 11, 1989 |
| 4833450 |
Fault detection in combination intrusion detection systems |
May. 23, 1989 |
| 4831361 |
Environmental abnormality alarm apparatus |
May. 16, 1989 |
| 4829283 |
Supervision arrangement for smoke detectors |
May. 9, 1989 |
| 4823089 |
Burglar alarm fault detector |
Apr. 18, 1989 |
| 4821027 |
Voice interactive security system |
Apr. 11, 1989 |
| 4812819 |
Functional relationship-based alarm processing system |
Mar. 14, 1989 |
| 4804942 |
Verifying automatic line integrity diagnostic (V.A.L.I.D.) apparatus and methods for intrusion detection systems |
Feb. 14, 1989 |
| RE32856 |
Alarm system |
Feb. 7, 1989 |
| 4803465 |
Apparatus for improving the reliability of an alarm circuit |
Feb. 7, 1989 |
| 4801924 |
Transmitter programmer connect system |
Jan. 31, 1989 |
| 4796010 |
Intrusion alarm and automatic illumination system |
Jan. 3, 1989 |
| 4796012 |
Perimeter surveillance system with sectional inhibition |
Jan. 3, 1989 |
| 4796205 |
Fire alarm system |
Jan. 3, 1989 |
| 4785284 |
Fire monitoring system |
Nov. 15, 1988 |
| 4772875 |
Intrusion detection system |
Sep. 20, 1988 |
| 4772876 |
Remote security transmitter address programmer |
Sep. 20, 1988 |
| 4768021 |
Safe for loaded hand gun |
Aug. 30, 1988 |
| 4764754 |
Fail-safe alarm circuit |
Aug. 16, 1988 |
| 4758823 |
System for protecting a group of locations of a network by anticipating vandalism |
Jul. 19, 1988 |
| 4755792 |
Security control system |
Jul. 5, 1988 |
| 4755797 |
Fire alarm apparatus |
Jul. 5, 1988 |
| 4752698 |
Emergency supervisory system |
Jun. 21, 1988 |
| 4751498 |
Single-wire loop alarm system |
Jun. 14, 1988 |
| 4749985 |
Functional relationship-based alarm processing |
Jun. 7, 1988 |
| 4745398 |
Self-powered sensor for use in closed-loop security system |
May. 17, 1988 |
| 4742337 |
Light-curtain area security system |
May. 3, 1988 |
| 4740787 |
Centralized monitoring method for security system |
Apr. 26, 1988 |
| 4737770 |
Security system with programmable sensor and user data input transmitters |
Apr. 12, 1988 |
| 4733215 |
Remote control apparatus for a property protection device |
Mar. 22, 1988 |
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