Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8151872 | Method and apparatus for controlling temperature Apparatus to control a temperature of a device that includes: a thermal head adapted to be thermally contacted to the device; a combined path to the thermal head; a first path maintained at a first temperature and connected to the combined path; a second path mainta... | 04/10/2012 |
| 7721797 | Refrigerator-oven combination for an aircraft galley food service system A refrigerator-oven combination for an aircraft galley food service system includes a housing with a thermally insulated compartment, a heating device for heating the compartment in a heating mode, and a refrigeration device for cooling the compartment in a refriger... | 05/25/2010 |
| 7337695 | Transmission casing A casing has casing parts and fastening elements, wherein the casing parts are connected to one another by the fastening elements. The fastening elements are located inside the casing so that the exterior of the casing is free of projections and recesses. A first on... | 03/04/2008 |
| 7278475 | Control arrangement for cooling power electronic components A control arrangement (10) comprises a first selectable controller (12) for controlling an action, and a second selectable controller (14) for controlling the action. The arrangement also includes a selector (22) for selecting one of the ... | 10/09/2007 |
| 7278587 | Thermal treatment apparatus and thermal treatment method A thermal treatment apparatus and method of thermal treatment are provided wherein the apparatus includes a treatment chamber used to thermally treat an object material held therein, fluid passages formed so as to extend along an outer surface of the treatment chamb... | 10/09/2007 |
| 7258839 | Temperature controlled microfabricated two-pin liquid sample dispensing system A cooled liquid sample dispensing system comprises a pair of pins for holding a droplet of liquid therebetween and a cooling element. Each pin includes a tip spaced predetermined distance from the other pin to define a sample acquisition region. The pins acquire and... | 08/21/2007 |
| 7252803 | Heating of microtitre well plates in centrifugal evaporators A method of protectively heating a microtitre well plate from below using infra-red radiation in a centrifugal evaporator, wherein a barrier plate is placed in contact with and surrounding the lower ends of the wells. The barrier plate is adapted to convey heat ener... | 08/07/2007 |
| 7243004 | Self-configuring controls for heating, ventilating and air conditioning systems A system for self-configuring complex HVAC systems has each of several units provided with a microprocessor control. The several units are each available in various optional styles, sizes, etc. The microprocessors provide information to a central control of the part... | 07/10/2007 |
| 7223949 | Analysis apparatus having improved temperature control unit An apparatus for use in controlling the temperature of one or more substances passing through one or more microfluidics channels in an analysis device is set forth. The apparatus includes a heating unit having first and second surfaces. The first surface of the heat... | 05/29/2007 |
| 7119308 | Forced-air heater control system and method The present invention relates to a forced-air electric heater control system for HVAC systems. One embodiment utilizes two heat sensors which are positioned upstream and downstream, equidistant from the heating element(s). The control system, in this embodiment, tak... | 10/10/2006 |
| 7114554 | Controller interface with multiple day programming A controller equipped with a user interface having multiple-day programming capabilities, including methods of programming such devices, are disclosed. The user interface may include one or more menus or screens that can be used to program a schedule for one or more... | 10/03/2006 |
| 7096936 | Refrigerator with quick chill and thaw system A quick chill and thaw system includes an air handler mounted in a fresh food compartment of a refrigerator and drawing air from a freezer compartment for rapid chilling of items inside a slide-out pan. The air handler produces convective airflow at temperatures wit... | 08/29/2006 |
| 7082352 | Temperature control apparatus for a heater using an encoder switch and method thereof Disclosed is a temperature control apparatus for a heater using an encoder switch and method thereof that controls an indoor temperature by driving a burner in accordance with a change of an indoor temperature and ventilating heated air indoors. The temperature cont... | 07/25/2006 |
| 7012223 | Forced-air heater control system and method The present invention relates to a forced-air electric heater control system for HVAC systems. One embodiment utilizes two heat sensors which are positioned upstream and downstream, equidistant from the heating element(s). The control system, in this embodiment, tak... | 03/14/2006 |
| 6965515 | Thermoelectric cooling of low-noise amplifier transistors in wireless communications networks A base station for a wireless communications system having a tower-mounted amplifier system with a low-noise amplifier transistor and a thermoelectric cooler that reduces the operating temperature of the low-noise amplifier transistor. The amplifier system has addit... | 11/15/2005 |
| 6867611 | Temperature-controlled thermal platform for automated testing A temperature-controlled system and method for supporting a wafer or packaged integrated circuit (IC) under test are described. The system includes a thermal platform having a top surface assembly on which the wafer or IC can be mounted. A thermal plate is located u... | 03/15/2005 |
| 6835307 | Thermal water treatment A thermal treatment system for supplying thermally conditioned or purified water for human or animal consumption, industrial processes, environmental containment, or removal of foreign species. The water purifier includes a heat exchanger for exchanging heat between... | 12/28/2004 |
| 6758266 | Work machine having a hydraulic liquid cooling and heating system A work machine, such as a wheeled loader or dumper, has a cooling and heating system comprising a main line (2) arranged to contain a fluid, a first heat exchanger (4) which is connected to the main line (2), and a charge-air cooler (8) f... | 07/06/2004 |
| 6640891 | Rapid thermal cycling device A thermal cycling device consisting of a plate containing a plurality of wells to hold liquid and a lid that covers the plate and contains a number of "pins" that insert into the wells of the plate to control the temperature of the sample in the well. Bio... | 11/04/2003 |
| 6569696 | Device and method for manufacturing semiconductor A heat exchange section (72) is provided in the middle of a circulation water path (58, 59) connecting between a temperature-controlled water tank (71) and a semiconductor manufacturing apparatus body (4) so as to perform a heat exchange with air of a cle... | 05/27/2003 |
| 6446716 | Working enclosure provided with means for recycling the atmosphere A working enclosure includes a working chamber whose walls delimit a confinement space for working in and an exterior branch loop for recycling the atmosphere of the confinement space. The branch loop opens at each end into the confinement space and inclu... | 09/10/2002 |
| 6213199 | Temperature selectable water supply device A temperature selectable water supply device for one of heating and cooling water provided by a water supply system to an outlet in a structure. The device includes a main water tank including an inlet conduit for receiving water from a water supply tank ... | 04/10/2001 |
| 6210958 | Temperature regulating block with receivers A temperature regulating block for lab thermostatting systems has a receiving side with two kinds of seats in the form of differently shaped recesses to implement large-area contact-making seating of filled lower zones of two differently shaped kinds of r... | 04/03/2001 |
| 6121061 | Method of processing wafers with low mass support A method is provided for treating wafers on a low mass support. The method includes mounting a temperature sensor in proximity to the wafer, which is supported on the low mass support, such that the sensor is only loosely thermally coupled to the wafer. A... | 09/19/2000 |
| 6089310 | Thermostat with load activation detection feature A thermostat for control of an AC-operated HVAC unit (or a unit providing only heating or only cooling) is provided with load activation detection sensing for increased reliability of latching relay activation. The thermostat includes a sensing transforme... | 07/18/2000 |
| 6054263 | Thermal cycler including a temperature gradient block A method in which a temperature gradient is generated across a "gradient" block, and an apparatus comprising a block across which a temperature gradient can be generated. By setting up such a gradient, multiple reaction mixtures held in wells on the gradi... | 04/25/2000 |
| 5971068 | Method and system for temperature control of hydraulic oil A combination of setting a correction value of an atmospheric temperature for each temporal section in response to a predicted value of a variation of the atmospheric temperature in a day and a delayed variation of a temperature of hydraulic oil due to th... | 10/26/1999 |
| 5896915 | Rethermalization system A rethermalization system for heating refrigerated food on trays, maintaining the food in a refrigerated condition until heated, and heating some of the food to a desired temperature at a serving time while maintaining the rest of the food in a refrigerat... | 04/27/1999 |
| 5771959 | Rethermalization system A rethermalization system for heating refrigerated food on trays, maintaining the food in a refrigerated condition until heated, and heating some of the food to a desired temperature at a serving time while maintaining the rest of the food in a refrigerat... | 06/30/1998 |
| 5560422 | Controller for air conditioner A controller for an air conditioner is provided wherein an operation mode is not unnecessarily changed in accordance with variations in temperature. When room temperature t is in a range of T+3.0>tࣙT+1.5, and when a timer expires (steps 212, 214), it is... | 10/01/1996 |
| 5439049 | Method for controlling sluggish heating and cooling systems for buildings In a method of controlling a sluggish heating and cooling system for buildings, that due to a high heat capacity reacts with delayed temperature changes, the exterior temperature is measured, an average projected temperature value of the exterior temperat... | 08/08/1995 |
| 5372011 | Air conditioning and heat pump system utilizing thermal storage A method and apparatus for controlling temperature and humidity of an air stream by chilling a cold storage material and warming a heat storage material by evaporation and condensation respectively from a fixed capacity refrigeration cycle, and selectivel... | 12/13/1994 |
| 5224649 | Digital thermostat with single rotary encoder switch for establishing set point temperature A digital thermostat includes a microcontroller and a single rotary encoder switch having an adjusting shaft and a knob connected to the shaft. The shaft of the switch is rotatable by the knob to a plurality of discrete angular positions, each of which en... | 07/06/1993 |
| 5127464 | Thermostat providing electrical isolation therein between connected heating and cooling transformers A low voltage space thermostat adaptable for controlling a heating-only apparatus or a heating and cooling apparatus. The thermostat includes a DC power supply and a voltage step-up transformer having two primary windings and a secondary winding for suppl... | 07/07/1992 |
| 5115968 | Method and apparatus for controlling a heating/cooling system based on a temperature error A temperature control system has a thermostat which provides an on/off signal. The on/off signal has an on period and an off period and is indicative of a temperature error. The temperature control system is suitable for controlling temperature control eq... | 05/26/1992 |
| 5088098 | Thermoelectric cooler control circuit A thermoelectric cooler temperature control circuit provides a periodic control signal having a substantially constant peak-to-peak magnitude and an average value dependent on a sensed temperature to be regulated. The control signal is coupled to control ... | 02/11/1992 |
| 4993480 | Temperature controlling means for a thermostat for use in measuring viscosity Temperature controlling means for a thermostat for use in viscosity measurement including: a first thermometer detecting the temperature of a fluid sample which is immersed in a thermostat and whose viscosity is measured; a first controller obtaining the ... | 02/19/1991 |
| 4951476 | Mode switching arrangement for automotive air conditioner An automatic air conditioner is arranged to be responsive to external air temperature in a manner wherein, if the atutomatic mode is interrupted and manual control instigated and the external temperature is low (viz., below a predetermined level), the mod... | 08/28/1990 |
| 4905894 | Refrigerant heating type air conditioner The delivery side of a refrigerant compressor is connected through an inside heat exchanger to a refrigerant heater, the outlet side of the refrigerant heater being connected with the suction side of the compressor. First and second temperature sensors ar... | 03/06/1990 |
| 4889179 | Two wire adaptive system for interconnecting a four wire thermostat and a four wire, heating/cooling system An apparatus for interconnecting a four wire control such as a thermostat and a four wire system such as a heating/cooling system with two wires. An encoder encodes signals provided by the thermostat so that four encoded signals may be transmitted over a ... | 12/26/1989 |
