Fire and absence detection and alarm system for bed occupants
Patent 4195287 Issued on March 25, 1980. Estimated Expiration Date: 
November 28, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 28, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsApplicationNo. 05/855375 filed on 11/28/1977US Classes:340/521, Plural diverse conditions340/506, Alarm system supervision340/573.4, House arrest system, wandering, or wrong place340/666, Weight5/940WITH ALARM MEANSExaminersPrimary: Waring, Alvin H.Attorney, Agent or FirmInternational ClassesA61B 5/103 (20060101)G08B 17/06 (20060101) G08B 21/00 (20060101) A61G 12/00 (20060101) G08B 21/22 (20060101) G08B 19/00 (20060101) AbstractA bed mat having a sensor for detecting abnormally high temperatures and for detecting when the occupant of the bed is not in it is connected to a control console which has circuits for producing a first electrical signal having a first characteristic in response to the detection of an abnormally high bed temperature and a second signal having a second characteristic in response to the detection of the absence of the bed occupant. In one form of the invention, these signals are applied to the conventional nurse call system to produce sensory signals at the nurses' station, for example, indicative of the detection of high temperature or absence in a way such that they can each be distinguished from the the signal produced at the nurse's station by the use of the nurse call button by the patient. Provision is also made for coupling of a smoke detector into the system for actuating the high temperature alarm signaller if smoke is detected. | |
