Technique for monitoring whether an individual is moving from a particular area
Patent 4175263 Issued on November 20, 1979. Estimated Expiration Date: 
April 25, 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.
April 25, 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.Patent ReferencesInventorsAssigneeApplicationNo. 05/790814 filed on 04/25/1977US Classes:340/573.4, House arrest system, wandering, or wrong place340/575, Sleep340/666WeightExaminersPrimary: Swann, III, Glen R.Attorney, Agent or FirmInternational ClassesA61B 5/11 (20060101)G08B 21/00 (20060101) G08B 21/22 (20060101) AbstractA first pressure sensor is positioned to sense the weight of part of the patient's body in the normal position and a second pressure sensor is positioned for sensing the weight of part of a patient's body when a patient begins to leave the bed. The device also includes an alarm and a pressure responsive switch connected to the first and second sensors to energize the alarm when the patient's weight is shifted from the first pressure sensor to the second pressure sensor. Another embodiment of the invention indicates when a patient moves from a recumbent to a sitting position or raises his head from a recumbent position. A further embodiment indicates when a child gets out of bed. Another embodiment of the invention indicates when a child moves out of an area where the child is supposed to be into an area where the child is not supposed to be. | |
