Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7349213 | Coolant control unit, and cooled electronics system and method employing the same A coolant control unit for a liquid cooled electronics system is provided, which includes an external coolant inlet and outlet for receiving and returning external coolant; an internal coolant loop for circulating coolant to the electronics system; a first and secon... | 03/25/2008 |
| 7264042 | Spray cooling system for extreme environments A spray cooling system for extreme environments for providing a desired enclosed environment for electronic devices regardless of external environmental conditions. The spray cooling system for extreme environments includes an enclosure that isolates the electronic ... | 09/04/2007 |
| 7119306 | Food thawing cabinet and related methods In one aspect, a food thawing cabinet includes at least one thawing chamber and one or more wall blowers and a heater for producing a controlled high volume of air flow over food product, with the heater controlled in a cyclic manner. In another aspect, various adva... | 10/10/2006 |
| 7113888 | Performance prediction program and performance prediction system for ground source heat pump system A computer which functions by a performance prediction program for a ground source heat pump system of the present invention and a performance prediction system constructed thereby include a dimensionless distance calculating means, a first dimensionless time calcul... | 09/26/2006 |
| 7106590 | Cooling system and method employing multiple dedicated coolant conditioning units for cooling multiple electronics subsystems A cooling system is provided employing multiple coolant conditioning units (CCUs). Each CCU, which is coupled to a different, associated electronics rack of multiple electronics racks to be cooled, includes a heat exchanger, a first cooling loop with a control valve... | 09/12/2006 |
| 7085626 | Method and apparatus to prevent low temperature damage using an HVAC control A heating control method is provided for a multi-stage heating system including a heating circuit having a compressor, a condenser and an evaporator. An auxiliary heater is provided that is selectively controlled independently of the heating circuit. During a heatin... | 08/01/2006 |
| 6966358 | Portable augmented silent cooling docking station A system is provided including a cooling station with a fluid reservoir containing a cooling fluid, a circulating pump, and a first fluid circuit including first couplers. A portable computer has a second fluid circuit with second couplers coupling to first couplers... | 11/22/2005 |
| 6802367 | Rethermalization system and method for use with food trays having a hot food side and a cold food side A rethermalization system for food trays having a hot food side and a cold food side, the system includes a first thermal system having a heating source, a refrigeration coil and a blower; a second thermal system having first and second refrigeration coils and a blo... | 10/12/2004 |
| 6742583 | Cooling system for a cabinet A bipartite cooling system comprises a first set of cooling equipment that provides for closed cooling air circulation inside a cabinet and a second set of cooling equipment that provides for open cooling air circulation inside the cabinet. For most of the year, coo... | 06/01/2004 |
| 6450409 | Method and apparatus for wiring room thermostat to two stage HVAC system A control used in a two stage HVAC system has a power supply from a 24 VAC transformer which is full wave rectified (D1, D2, D3, D4) to create DC voltages for a microcontroller (U1) and relays (K1-K3). All of the control information needed for the two sta... | 09/17/2002 |
| 6423268 | Blood heating system with mutually exclusive relay-controlled heat exchangers A blood heating system for use in open heart surgery including an arterial/venous fluid circuit, a cardioplegia fluid circuit independent of the arterial/venous fluid circuit, a first heater in heat exchange relationship with the arterial/venous fluid cir... | 07/23/2002 |
| 6179212 | Variable output multistage gas furnace A high turn down ratio furnace is attained by plural burners or burner stages having control valves operated by thermal sensors. Heat output control is by a variable pressure device for the fuel supplied to the burners and individual on-off valves for som... | 01/30/2001 |
| 5607014 | Multi-staging of supplemental heat in climate control apparatus An improved heat pump system of the type having a thermostat capable of generating at least three stages of demand signals, outdoor and indoor heat exchange coils, at least one fan, a compressor, an expansion device, with the flow of refrigerant being rev... | 03/04/1997 |
| 5383336 | Automatic control address setting type distributively arranged air conditioner group apparatus A distributively arranged air conditioner group apparatus includes plural groups of air conditioners distributively arranged at remote locations wherein each group consists of a plurality of units on the heat source side and a plurality of units on the ut... | 01/24/1995 |
| 5211713 | Temperature control method with simultaneous heating and cooling near the set-point A temperature control method for controlling a temperature in a chamber comprises the steps of: providing heating means which can select large and small heating powers for heating the chamber and refrigerating means for cooling the chamber; detecting a pr... | 05/18/1993 |
| 4984628 | Apparatus for maintaining liquid temperature at a constant level An apparatus for maintaining liquid temperature at a constant level comprises a reaction vessel for containing liquid, a cooling device connected with the reaction vessel for cooling the liquid, a heating device connected with the cooling device for heati... | 01/15/1991 |
| 4911358 | Temperature recovery system for an electronic programmable thermostat A method of controlling a multistage heating system so as to minimize the energy required to bring the temperature of a predetermined volume of space to a predetermined temperature level is provided. The multistage heating system includes an energy effici... | 03/27/1990 |
| 4732318 | Velocity controlled forced air temperature control system A building temperature control system is velocity based, employing the velocity of air flowing into individual zones of temperature control to control temperature of the individual zones, total amount of air supplied to all zones from the air supply syste... | 03/22/1988 |
| 4729424 | Cooling system for electronic equipment A cooling system for maintaining the temperature within electronic equipment has a circulation system for pumping a cooling liquid, such as water, through the electronic equipment where it picks up heat generated by the electronic equipment. The cooling l... | 03/08/1988 |
| 4442972 | Electrically controlled programmable digital thermostat and method for regulating the operation of multistage heating and cooling systems 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 part... | 04/17/1984 |
| 4441545 | Air conditioning thermostatic control system having modular inclusion of remote temperature set-back capability Methods and circuits for providing auxiliary or remote temperature set or set-back capability in comparator-based thermostatic temperature control systems. In particular, the invention is applicable to thermostatic control systems of the general type incl... | 04/10/1984 |
| 4379483 | Method of controlling heating and cooling sources A method of controlling heating and cooling sources utilizes a computer or an electronic thermostat to control a plurality of heating or cooling resources for regulating indoor temperature within a narrow temperature range. The method maintains a temperat... | 04/12/1983 |
| 4353409 | Apparatus and method for controlling a variable air volume temperature conditioning system Apparatus and method for controlling a temperature conditioning system in which a plurality of stages of temperature conditioning apparatus may be selectively energized to meet a temperature conditioning demand in a comfort zone into which the flow of tem... | 10/12/1982 |
| 4270597 | Thermostat and circuit A thermostat adapted to regulate the operation of a heating system and a cooling system in response to the temperature in a space conditioned by the systems. The thermostat has a pair of means selectively movable to respective ones of adjusted positions a... | 06/02/1981 |
| 4019569 | Burner control circuit A novel control circuit for heating and heating/cooling systems wherein in a heating mode the circuit controls a valve means comprising a main valve and a modulating valve through which gas is supplied to a burner. The main valve is a normally closed, sol... | 04/26/1977 |
| 3993120 | Space thermostat A space thermostat for controlling the two-stage operation of both heating and cooling apparatus includes two single-pole, double-throw mercury type switches operatively connected to a single bimetallic coil. One switch energizes stage one of the heating ... | 11/23/1976 |
| 3949807 | Air conditioning system with integral energy conserving elements There is disclosed an air conditioning control system for a building which has zone temperature sensing means for generating a plurality of DC analog signals proportional to the deviation of the air temperature in a controlled zone from first and second s... | 04/13/1976 |
