Claims
- 1. A carbon monoxide gas detector and controller for controlling a device producing the carbon monoxide gas and for decreasing the concentration of carbon monoxide in an affected space, the controller comprising:
- a detector for measuring the concentration of the gas, the detector capable of producing a signal when the carbon monoxide concentration reaches predetermined levels, a microprocessor in electrical communication with the detector for receiving the signals from the carbon monoxide detector;
- means for visually or audibly indicating a first predetermined level of carbon monoxide gas said means operatively connected to the microprocessor;
- a relay in electrical communication with the microprocessor and including a first normally open contact for activating the electrical power circuit of a device for decreasing the concentration of gas in an affected space and a second normally closed contact for deactivating the electrical power circuit of a device producing the gas, when the detector senses a second predetermined level of gas, said microprocessor energizing the relay when the detector senses second predetermined level of gas;
- the microprocessor operative to actuate the visual or audible indicating means when it receives a signal from the detector representing the first predetermined level of gas and activating the relay when it receives a signal representing the second predetermined level of gas;
- means for deactivating the detector and controller in the event of a malfunction;
- the microprocessor capable of sensing a malfunction of the detector and activating visual or audible means for indicating the malfunction.
Parent Case Info
This is a continuation-in-part of application Ser. No. 07/900,325, filed Jun. 18, 1992, now abandoned.
US Referenced Citations (13)
Non-Patent Literature Citations (5)
Entry |
"Coal Miners may get a firealarm they can trust"; Business Week Jul. 16, 1990; p. 167. |
"How to prevent this Silent Killer from Invading Your Home"; The Family Handyman; Jan. 1992; pp. 50-55. |
Product Brochure; "GHD2001 Carbon Monoxide Gas-Alarm"; PAMA Electronics Ltd; Israel; undated. |
Diller; "The Availablity of CO.sub.2 Detectors"; J.A.M.A. vol. 266 No. 23 p. 3286; Dec. 18, 1991. |
E. M. Dolnick et al.; "Carbon Monoxide Safety Shutoff: Meeting the AGA Requirements"; IEEE Transactions on Industry Applications; vol. 24, No. 6, Nov./Dec. 1988. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
900325 |
Jun 1992 |
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