Quotables
"There is no reason anyone would want a computer in their home."
Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7661469 | Synchronized thermal management method A method of cooling a plurality of devices operated in parallel and heated by relatively long duration pulses using a single coolant flow channel to the devices in series that transports the heat from the several devices in a contiguous series of heat pulses to the ... | 02/16/2010 |
| 7614444 | Rapid thermal cycling device A lid for a well plate is provided. A pin penetrates the lid and projects downwardly into a well of the well plate. An electrical charge is applied to the pin and an electrical charge of opposite polarity is applied to an electrically conductive portion of a corresp... | 11/10/2009 |
| 7373968 | Method and apparatus for manipulating an organic liquid sample A lid for a well plate, which has pins that penetrate the lid and project downwardly into the wells of the well plate. Thermal energy is applied to the upper end of the pin to regulate the temperature of liquid samples. Ultrasonic energy is applied to the upper end ... | 05/20/2008 |
| 6996999 | Method and apparatus for controlling humidity with an air conditioner Methods and apparatus for more effectively managing humidity of an inside space using an air conditioner are provided. In one illustrative embodiment, the system determines whether the humidity level in an inside space is above a predetermined humidity threshold, an... | 02/14/2006 |
| 6997389 | Method and apparatus for delivering conditioned air using pulse modulation A method and apparatus for delivering conditioned air using short duty cycles during which a damper is fully open for a time and fully closed for the remaining time. Conditioned air is continuously supplied to a plenum at low pressure and is applied to the space whe... | 02/14/2006 |
| 6931867 | Cooling system with isolation valve A cooling system including a pulse-width modulated variable capacity compressor operable between on-cycles and off-cycles, and in electrical communication with the compressor and operable to respectively synchronize opening and closing thereof with on- and off-cycle... | 08/23/2005 |
| 6868685 | Air conditioner and method of controlling the same Disclosed herein is an air conditioner and method of controlling the same. The air conditioner includes a compressor having a capacity variable according to a duty control signal. The duty control signal controls the compressor to undergo a loading time for maintain... | 03/22/2005 |
| 6766962 | Temperature maintaining apparatus and temperature control apparatus and method therefor A method and apparatus are provided for maintaining a temperature between a first value and a second value. The method and apparatus utilize a heat transfer device capable of cycling through a series of cycles, the device being capable of changing the temperature fr... | 07/27/2004 |
| 6584792 | Method for driving an output stage by pulse-width modulation In a method for driving an output stage by pulse-width modulation, which driving serves to supply a unit cooling the output stage during operation, at a higher temperature of the output stage a style of driving is performed which results in a low power lo... | 07/01/2003 |
| 6401976 | Electrically operated viscous fluid dispensing apparatus and method An electrically operated fluid dispenser for dispensing a pattern of viscous fluid onto a substrate during a run mode. The dispenser is turned off and does not dispense the viscous fluid during a standby mode of operation. The dispenser includes a dispens... | 06/11/2002 |
| 5971284 | Apparatus for regulating heater cycles to improve forced-air heating system efficiency A method and apparatus of regulating cycles of a burner in a forced air heating system. A control unit uses a sensor at an output of a heat exchanger to make measurements of a temperature of air output from the heat exchanger. The control unit observes te... | 10/26/1999 |
| 5960639 | Apparatus for regulating compressor cycles to improve air conditioning/refrigeration unit efficiency To regulate a cooling system operation, a value from an energy value sensor such as a thermostat or pressuretrol is sensed and, if the value warrants a call for compressor operation, the call is made. The last compressor off-call-time is stored in memory.... | 10/05/1999 |
| 5931011 | Low temperature storage cabinet A low temperature storage cabinet having a freezing cycle system composed of a compressor, a condenser, a throttle and an evaporator, a cabinet temperature sensor for detecting an inside temperature of the cabinet, and an electric fan provided in the cabi... | 08/03/1999 |
| 5799869 | Off-road heating control Apparatus for heating and cooling an enclosed operator space in an off-road vehicle controlling evaporator fan speed, compressor clutch and condenser fan operation, and having sensors for detecting operator space temperature and an evaporator freezing con... | 09/01/1998 |
| 5366003 | Automotive air conditioner compressor controller A fuel-saving air conditioner compressor timer is adapted for simple connection to motor vehicle air conditioner systems of the type that are manually controlled and not of the expensive climate control type. An adjustable timer may be set by the driver b... | 11/22/1994 |
| 5355938 | Temperature control device A temperature control device with high accuracy and stability comprising a heating device and a cooling device which are controlled by separate control circuits for performing proportional control, integral control, derivative control and the like. A rati... | 10/18/1994 |
| 5326026 | Energy and peak-load conserving thermostat and method with controlled deadband A thermostat is disclosed for controlling a heating system, particularly a forced hot-air furnace, so as to improve fuel efficiency and decrease peak fuel load. The thermostat controls the length of fuel-on cycles, so that the heat exchanger of the furnac... | 07/05/1994 |
| 5273105 | Air conditioning apparatus for an automobile A heater core 21 is connected to an engine cooling water line via an inlet passageway 43 and a return passageway 45. A first valve 25a is provided for controlling the amount of high temperature water introduced to the heater core 21, and a second valve 25... | 12/28/1993 |
| 5244146 | Energy-conserving thermostat and method A thermostat is described for controlling a furnace for a hot air, hot water, or steam heating system which delivers heat to a heated space via a delivery system. The thermostat causes the system to conserve energy by limiting the "burn" or on-time cycle ... | 09/14/1993 |
| 5192020 | Intelligent setpoint changeover for a programmable thermostat An apparatus to match initiation of temperature changeover settings of a thermostat to a duty cycle of an air temperature conditioning plant without degrading the comfort level of the area of temperature modification. The apparatus prevents short-cycling ... | 03/09/1993 |
| 4992965 | Circuit arrangement for the evaluation of a signal produced by a semiconductor gas sensor A circuit for the evaluation of a signal produced by a semiconductor gas sensor provides a reliable control for manipulating a recirculated air valve in motor vehicles and their air-conditioning systems and includes a voltage divider connected with an int... | 02/12/1991 |
| 4858676 | Airconditioning system for a vehicle An airconditioning system for a vehicle includes an air supply blower, an air chilling device, an air heating device, speed and power sensing systems for determining the speed and power levels at which the blower is operating, a speed governor for control... | 08/22/1989 |
| 4787555 | Environmental control system with condition responsive timer and method A controller (8) of air conditioning apparatus (18) with a cycle timer (12) for periodically actuating the apparatus (18) irrespective of temperature combined with a thermostat (10) for actuating the apparatus (18) in accordance with sensed temperature an... | 11/29/1988 |
| 4766950 | Controller for an air conditioner of vehicles In an air conditioner of vehicles including a fan for sending air, a cooling unit for cooling air sent by the fan, a heater for heating air sent by the fan, an air mix damper for adjusting the amount of air passing through the heater and cooled by the coo... | 08/30/1988 |
| 4759498 | Thermostatic control without temperature droop using duty cycle control The present invention is a technique for thermostatic control of a temperature modifying apparatus such as a heating unit or an air conditioning unit. This technique involves measuring the ambient temperature, generating an error signal based upon the dif... | 07/26/1988 |
| 4725001 | Electronic thermostat employing adaptive cycling Environmental heating/cooling systems are controlled by an interactive microprocessor and have continuous on-time and adaptive cycling modes wherein continuous on-time brings the temperature to a programmed set point and cycling precisely maintains that t... | 02/16/1988 |
| 4538672 | Tracking temperature controller apparatus Apparatus for controlling temperature in accordance with a source temperature that includes a clock pulse generating circuit that triggers each of first and second mono-stable multivibrators which provide opposite phase pulse outputs having durations cont... | 09/03/1985 |
| 4473183 | Temperature dependent duty cycler control system The invention disclosed herein is a temperature dependent duty cycler control system which provides a duty cycle off time locus responsive to a sensed temperature and is characterized by two selectable off time periods which are connected by slope control... | 09/25/1984 |
| 4453590 | Duty cycle controller A duty cycle controller for an air conditioning system. Solid state switches are connected in series with the heating and cooling switches of a thermostat in circuits for energizing the cooling and heating subsystems, respectively, of an air conditioner. ... | 06/12/1984 |
| 4401262 | Energy saving thermostat with means to shift offset time program An energy saving thermostat having a selected offset temperature time period previously programmed with means to shift the time period ahead or backward.... | 08/30/1983 |
| 4401149 | Method and device for controlling an air conditioning system A method of and a device for controlling an air conditioning system in which an air-flow proportioning door is positioned between a heater unit and a refrigerant evaporator unit and is movable into and out of an angular position shutting off the flow of a... | 08/30/1983 |
| 4388964 | Thermal control system In a space shuttle, payloads are individually temperature controlled by means of a liquid control loop in heat exchange relationship with both the payload and a radiator or shuttle cold plate. The liquid pump is driven at a variable speed to control the h... | 06/21/1983 |
| 4386650 | Temperature control system A temperature control system is disclosed which supplies a fluid which acts as a temperature effecting agent for the system. The fluid is conveyed through the system with a temperature control means regulating the temperature of the fluid and a fluid cont... | 06/07/1983 |
| 4383574 | Air conditioning system for automotive vehicles having discharge air temperature control function An air conditioning system for automotive vehicles, which includes a temperature control lever connected to the air-mix damper, and means for controlling the operation of the compressor. The air-mix damper is pivotally displaced between its maximum coolin... | 05/17/1983 |
| 4337818 | Vehicle temperature control system A heating and air conditioning control system havng a compressor clutch cycle control feature for controlling the in-car temperature of a vehicle passenger compartment is disclosed. The system comprises an automatic temperature control (ATC) sensor (32) w... | 07/06/1982 |
| 4335847 | Electronic thermostat with repetitive operation cycle An electronic multiple-setback thermostat for residential and commercial use includes an internal clock having a week-long cycle. The thermostat is programmed by the operator, usually manually actuable input devices, to control the furnace/air conditionin... | 06/22/1982 |
| 4333519 | Controller for air conditioning units, heating units and the like A controller (10) for air conditioning units, heating units, and the like is disclosed. The controller (10) regulates the activation and deactivation of an energy consuming component of the unit, such as a compressor (12) or heating coil (14). The control... | 06/08/1982 |
| 4314665 | Electronic thermostat 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 characteristi... | 02/09/1982 |
| 4292813 | Adaptive temperature control system A refrigerator includes a compressor, a condenser fan, and an evaporator fan simultaneously energized by a temperature control system which includes a thermistor located to sense the average temperature of the cabinet air and a potentiometer manually adju... | 10/06/1981 |
| 4272012 | Method and system for controlling a plurality of temperature conditioning units A plurality of temperature conditioning units are divided into groups with the groups being sequentially and repetitively, one after the other, enabled for a first preset number of timing intervals and then disabled for a second preset number of timing in... | 06/09/1981 |
