1
Joseph D Riley, Marc H Popek: Apparatus and method for automatic climate control. Smart Systems International, Flehr Hohbach Test Albritton & Herbert, March 7, 1995: US05395042 (270 worldwide citation)

An apparatus and method for controlling the operation of (HVAC) equipment or other climate control equipment. The method is executed by a conventional computer with a memory storing a program. The system determines whether the space is not occupied and if the temperature drifts outside an allowed ma ...


2
Roger Garrett, Andre Liversain: Programmer. Browdy and Neimark, July 22, 1980: US04213562 (222 worldwide citation)

A programmer (controller) permits individual control of a plurality of devices associated with the same installation, such as an installation for heating residential rooms, offices, or the like. The programmer includes a clock, at least one counter which periodically receives pulses from the clock, ...


3
Bharat B Sahay, James J Jones: Electrically controlled programmable digital thermostat and method for regulating the operation of multistage heating and cooling systems. Texas Instruments Incorporated, John A Haug, James P McAndrews, Melvin Sharp, April 17, 1984: US04442972 (218 worldwide citation)

An electronically controlled programmable wall thermostat provides better control of comfort temperature and permits improved energy-saving temperature setback at selected intervals of the day or night in multistage heating and cooling systems and is particularly useful in achieving improved energy ...


4
Larry J Johnson, Joseph T Widunas: Apparatus and method for performing automated amplification of nucleic acid sequences and assays using heating and cooling steps. Cetus Corporation, Ronald C Fish, Kevin R Kaster, August 13, 1991: US05038852 (208 worldwide citation)

There is disclosed herein a machine for performing nucleic acid amplification under computer control. The machine utilizes any one of a number of heating and cooling systems under control of a host computer which directs the heating and cooling systems to heat and cool a reaction-chamber-containing ...


5
Ronald L Fox: Downhole steam generator with improved preheating, combustion and protection features. The United States of America represented by the United States Department of Energy, May 31, 1983: US04385661 (192 worldwide citation)

An apparatus for generation of steam in a borehole for penetration into an earth formation wherein feedback preheater means are provided for the fuel and water before entering the combustor assembly. First, combustion gases are conducted from the combustion chamber to locations in proximity to the w ...


6
Gilbert L Wedekind: Method and apparatus for adaptively optimizing climate control energy consumption in a building. Reising Ethington Barnard Perry & Milton, May 26, 1992: US05115967 (179 worldwide citation)

A computer (37) or microprocessor-based thermostat system (10) for automatically determining and implementing an optimum thermostat setback schedule (80) which, while maintaining a user-specified occupancy comfort schedule (39), minimizes the energy consumption of the climate control system (18) wit ...


7
Dipak J Shah: Thermostat system having an optimized temperature recovery ramp rate. Honeywell, John G Shudy Jr, September 17, 1996: US05555927 (164 worldwide citation)

An adaptive recovery method for a setback thermostat using the intersection of the space temperature with a sloped recovery temperature line which approximates the change in temperature as a function of time during recovery of the temperature controlled space from a setback temperature, to determine ...


8
Vinay Mehta: Auto-programmable electronic thermostat. Hunter Fan Company, Baker Donelson Bearman & Caldwell, July 21, 1998: US05782296 (148 worldwide citation)

The invention is a method for programming a programmable thermostat having a default program set and one or more pre-programmed program sets, wherein each pre-programmed program set has a plurality of times and a plurality of temperatures. The method includes the steps of selecting one of the plural ...


9
Michael R Levine: Electronic thermostat. Krass & Young, June 10, 1980: US04206872 (146 worldwide citation)

A thermostat for generating control signals for a furnace, air conditioner, or the like, employs a constant frequency, periodically alternating electrical source and an oscillator incorporating an element having a thermal-sensitive electrical characteristic so the oscillator frequency varies as a fu ...


10
Daniel T Uhrich: Thermostat with selectable temperature sensor inputs. Honeywell, Edward L Schwarz, March 18, 1997: US05611484 (137 worldwide citation)

A thermostat has terminals to receive at least two temperature sensor signals, and changes the one of these terminals which provides the feedback signal for temperature control responsive to a detected condition. This condition may be a manual input, expiry of a time interval, reaching a time of day ...



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