Programmable thermostat
Patent 4606401 Issued on August 19, 1986. Estimated Expiration Date: 
March 8, 2005. 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.
March 8, 2005. 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 ReferencesThermostat with automatic heat/air conditioning changeover Energy management system with programmable thermostat Electrically controlled programmable digital thermostat and method for regulating the operation of multistage heating and cooling systems Patent #: 4442972 InventorsAssigneeApplicationNo. 06/709918 filed on 03/08/1985US Classes:165/238, Means storing set point for particular time of day (e.g., clock thermostat, etc.)165/11.1, WITH ALARM, INDICATOR, SIGNAL, REGISTER, RECORDER, TEST OR INSPECTION MEANS165/265, Manual changeover between heating and cooling modes (e.g., manual override, etc.)236/94With indicator or alarmExaminersPrimary: Wayner, William E.Attorney, Agent or FirmInternational ClassesG05B 19/04 (20060101)G05B 19/10 (20060101) AbstractA programmable thermostat employing means for sensing the ambient temperature on the thermostat, a clock for generating digital electrical signals representative of real time, a programmable digital memory for retaining a schedule of times and temperature ranges for a particular repetitive time cycle, display means for indicating selected information including programming mode, time, and temperature conditions during the programming and operation of the device, and control means for interrogating the current temperature range in the times-temperatures schedule, determining whether the ambient temperature on the thermostat is within that range, and generating a control signal to the furnace or air conditioner when appropriate. | |
