Timer Patents (Class 165/262)
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Patent number: 11726435Abstract: A method and apparatus for controlling power production. In one embodiment, the method comprises determining a predicted weather event; determining a predicted power production impact for a distributed generator (DG) array based on the predicted weather event; and controlling power production from one or more components of the DG array to compensate for the predicted power production impact.Type: GrantFiled: November 9, 2021Date of Patent: August 15, 2023Assignee: Enphase Energy, Inc.Inventors: Martin Fornage, Benjamin Smith
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Patent number: 11709461Abstract: A method and apparatus for controlling power production. In one embodiment, the method comprises determining a predicted weather event; determining a predicted power production impact for a distributed generator (DG) array based on the predicted weather event; and controlling power production from one or more components of the DG array to compensate for the predicted power production impact.Type: GrantFiled: August 17, 2021Date of Patent: July 25, 2023Assignee: Enphase Energy, Inc.Inventors: Martin Fornage, Benjamin Smith
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Patent number: 8246318Abstract: Provided is a water-cooled air compressor which is capable of restraining lowering of the performance of a plate type compressor for heat-exchanging compressed air from a compressor body, with cooling water due to clogging of gaps between plates in the heat-exchanger by dust or the like, incorporating a first solenoid valve and a second solenoid valve connected respectively in a cooling water supply pipe line and a cooling water discharge pipe line of the heat-exchanger, an air feed pipe line connecting between a compressed air supply pipe line on the outlet side of the heat-exchanger and the cooling water discharge pipe line, a third solenoid valve and a check valve connected in the air feed pipe line, a discharge pipe line connected in a discharge pipe line 18 so as to branch therefrom, a fourth solenoid valve connected in the discharge pipe line, and a control device for controlling opening and closing of the first to fourth solenoid valves.Type: GrantFiled: June 19, 2008Date of Patent: August 21, 2012Assignee: Hitachi Industrial Equipment Systems Co., Ltd.Inventors: Hideharu Tanaka, Masahiko Takano, Akihiro Nagasaka
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Patent number: 7743820Abstract: The circulation main loop supplies the liquid coolant by means of the main pump to the cooling plate which cools the electronic element, and then, dissipates the heat by the main heat exchanger 20 to return the same to the reservoir tank. The circulation sub-loop supplies the liquid coolant by means of the sub-pump, and after dissipating the heat by the sub-heat exchanger, returns the same to the refrigerant tank. The controller controls as required the supply flow rate from the main pump and the sub-pump.Type: GrantFiled: November 10, 2005Date of Patent: June 29, 2010Assignee: Fujitsu LimitedInventor: Jie Wei
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Patent number: 6994158Abstract: System and method for reducing temperature variation among components in a multi-component system. In this respect, component temperatures are controlled to remain relatively constant (approximately within 5° C.) with respect to other components, while allowing for multiple fluctuating heat loads between components. A refrigeration system possessing a variable capacity (speed) compressor and an electronic valve is utilized to control the flow of refrigerant through the refrigeration system. The temperature of the components is reduced by metering the mass flow rate of the refrigerant cooling the components to compensate for the heat load applied to the refrigeration system.Type: GrantFiled: October 15, 2003Date of Patent: February 7, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Abdlmonem H. Beitelmal, Cullen E. Bash, Chandrakant D. Patel
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Patent number: 6769482Abstract: A heating, ventilation and air conditioning (HVAC) device (104) which includes both heating and cooling operating modes provides an easy-to-use interface (110) for selecting the operating parameters of the device (104). The interface (110) allows the input of a setpoint temperature at which the HVAC device (104) conditions the ambient temperature of a space (102). A mode switch-over algorithm (200) uses the setpoint temperature, the sensed temperature from the conditioned space, and prestored threshold values that depend on the device's operating capacities, to determine when to change the device between heating and cooling modes. Also, within each of the respective modes, a heating (300) or cooling (400) algorithm controls the engaging and disengaging of the heating and cooling elements of the device (104) to maintain the temperature of the conditioned space (102) within a desired comfort zone.Type: GrantFiled: October 25, 2001Date of Patent: August 3, 2004Assignee: Ranco Incorporated of DelawareInventors: Phillip Ryan Wagner, John Gilman Chapman, Jr.
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Patent number: 6598671Abstract: An apparatus for heating the interior compartment of a vehicle, the apparatus has a primary heating system, a secondary heating system and an operating system. The primary heating system receives and circulates an engine coolant through a heater core. The secondary heating system receives and circulates a gas, the secondary heating system heats the gas and circulates the heated gas through a heat exchanger. The operating system for operating the heating systems, the operating system receives a plurality of inputs and in response to the inputs the operating system determines which of the heating systems is to be activated in response to a heating request. The operating system also determines whether or not to deactivate one or both of the heating systems.Type: GrantFiled: March 24, 2000Date of Patent: July 29, 2003Assignee: General Motors CorporationInventors: Xin Zeng, Gregory Alan Major
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Publication number: 20030070799Abstract: A method for cooking food in a refrigerated oven comprising a cool cycle, bake cycle, and warm cycle. The cool cycle maintains the food placed in the refrigerated oven at a temperature suitable to prevent the spoiling of the food prior to the initiation of the bake cycle. The food is cooked during the bake cycle. The warm cycle maintains the cooked food at a temperature suitable for serving on removal from the cooking chamber. In optional cool cycle can precede the warm cycle.Type: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Inventors: Dianne D. Mueller, Dale Lukens, David J. Anderson, Ralph Tate, Thomas J. Leichliter
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Publication number: 20020166659Abstract: A heating, ventilation and air conditioning (HVAC) device (104) which includes both heating and cooling operating modes provides an easy-to-use interface (110) for selecting the operating parameters of the device (104). The interface (110) allows the input of a setpoint temperature at which the HVAC device (104) conditions the ambient temperature of a space (102). A mode switch-over algorithm (200) uses the setpoint temperature, the sensed temperature from the conditioned space, and prestored threshold values that depend on the device's operating capacities, to determine when to change the device between heating and cooling modes. Also, within each of the respective modes, a heating (300) or cooling (400) algorithm controls the engaging and disengaging of the heating and cooling elements of the device (104) to maintain the temperature of the conditioned space (102) within a desired comfort zone.Type: ApplicationFiled: October 25, 2001Publication date: November 14, 2002Applicant: Ranco Incorporated of DelawareInventors: Phillip Ryan Wagner, John Gilman Chapman
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Patent number: 6230979Abstract: A controller for a two-stage heat source that can be used with a single stage or a two stage thermostat. The controller includes a second stage delay timer that initiates second stage heating when the timer is decremented to zero. The timer is reset when there is no longer a call for first stage heat, when there is a call for second stage heat, or if there is no call for second stage heat and the controller determines that it is connected to a two-stage thermostat. The controller can include an indicator such as a contact bar and jumper or a switch for indicating the type of thermostat connected to the controller. Alternatively, the controller can be programmed to “learn” whether it is attached to a single stage or two-stage thermostat, assuming that it is connected to a single stage thermostat, unless and until a call for second stage heating is received.Type: GrantFiled: January 20, 2000Date of Patent: May 15, 2001Assignee: Emerson Electric Co.Inventors: Stephen J. Vendt, William P. Butler, David M. Cenedella