Patents Assigned to Davis Energy Group, Inc.
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Patent number: 8397522Abstract: A dynamic system controls indoor relative humidity and temperature to achieve specified conditions by applying multiple stages of dehumidification. In addition to a stage that increases dehumidification by reducing the speed of the indoor blower, the system uses a reheat coil and multiple valves that allow the reheat coil to function as either a subcooling coil or a partial condenser. Thus the system can maintain specified indoor temperature and humidity conditions even at times when no heating or cooling is needed. The system may have an outdoor condensing unit including a compressor and a condenser operably connected via refrigerant lines to an indoor unit to form a “split system” refrigerant loop.Type: GrantFiled: June 23, 2009Date of Patent: March 19, 2013Assignee: Davis Energy Group, Inc.Inventors: David A. Springer, Marc A. Hoeschele, James H. Phillips
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Publication number: 20110247694Abstract: A device is provided for managing air flow in an air handling system. The device has a first movable air deflector and a separate second movable air deflector, each of which are movable between a first position and a second position. A linkage assembly is provided connecting the first movable air deflector and the second movable air deflector. The linkage assembly has a single actuator and is further configured to cooperatively move the first movable air deflector and the second movable air deflector between the respective first position and the second position for each of the first movable air deflector and the second movable air deflector, and to apply a sealing pressure to establish a substantially airtight seal around the each of the first movable air deflector and the second movable air deflector in the first position, around the first air flow deflector in the second position.Type: ApplicationFiled: April 6, 2011Publication date: October 13, 2011Applicant: DAVIS ENERGY GROUP, INC.Inventors: Gregory S. SHELDON, David A. SPRINGER, Joshua B. MCNEIL
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Patent number: 7992630Abstract: A method for nighttime pre-cooling of a building comprising inputting one or more user settings, lowering the indoor temperature reading of the building during nighttime by operating an outside air ventilation system followed, if necessary, by a vapor compression cooling system. The method provides for nighttime pre-cooling of a building that maintains indoor temperatures within a comfort range based on the user input settings, calculated operational settings, and predictions of indoor and outdoor temperature trends for a future period of time such as the next day.Type: GrantFiled: May 29, 2007Date of Patent: August 9, 2011Assignee: Davis Energy Group, Inc.Inventors: David A. Springer, Leo I. Rainer
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Publication number: 20090277193Abstract: A dynamic system controls indoor relative humidity and temperature to achieve specified conditions by applying multiple stages of dehumidification. In addition to a stage that increases dehumidification by reducing the speed of the indoor blower, the system uses a reheat coil and multiple valves that allow the reheat coil to function as either a subcooling coil or a partial condenser. Thus the system can maintain specified indoor temperature and humidity conditions even at times when no heating or cooling is needed. The system may have an outdoor condensing unit including a compressor and a condenser operably connected via refrigerant lines to an indoor unit to form a “split system” refrigerant loop.Type: ApplicationFiled: June 23, 2009Publication date: November 12, 2009Applicant: DAVIS ENERGY GROUP, INC.Inventors: David A. Springer, Marc A. Hoeschele, James H. Phillips
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Patent number: 7596915Abstract: A method of forming an insulated concrete foundation is provided comprising constructing a foundation frame, the frame comprising an insulating form having an opening, inserting a pocket former into the opening; placing concrete inside the foundation frame; and removing the pocket former after the placed concrete has set, wherein the concrete forms a pocket in the placed concrete that is accessible through the opening. The method may further comprise sealing the opening by placing a sealing plug or sealing material in the opening. A system for forming an insulated concrete foundation is provided comprising a plurality of interconnected insulating forms, the insulating forms having a rigid outer member protecting and encasing an insulating material, and at least one gripping lip extending outwardly from the outer member to provide a pest barrier. At least one insulating form has an opening into which a removable pocket former is inserted.Type: GrantFiled: May 29, 2007Date of Patent: October 6, 2009Assignee: Davis Energy Group, Inc.Inventors: Brain E. Lee, Stephan K. Barsun, Richard C. Bourne, Marc A. Hoeschele, David A. Springer
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Publication number: 20090126913Abstract: An evaporative plate-type heat exchanger is provided having a plurality of alternating first plates and second plates positioned in side-by side relationship to form a top surface, a bottom surface, a front surface and a rear surface. The first and second plates form a plurality of dry air flow passages, between first faces of the first plates and first faces of adjacent second plates, that are in communication with dry air flow inlet openings and dry air flow outlet openings formed in the front surface. The first and second plates form a plurality of dry air flow passages, between second faces of the first plates and second faces of adjacent second plates, that are in communication with wet air flow inlet openings formed in the bottom surface and with wet air flow outlet openings formed in the rear surface. A method of forming the plate-type heat exchanger includes forming alternating first plates and second plates in a continuous sheet, and folding the continuous sheet in a fan fold arrangement.Type: ApplicationFiled: November 16, 2007Publication date: May 21, 2009Applicant: DAVIS ENERGY GROUP, INC.Inventors: Brian E. Lee, Richard C. Bourne, Stephan K. Barsun
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Publication number: 20080083176Abstract: A roofing panel is provided with a deck having an upper surface that forms a plurality of tubing channels, tubing positioned within the tubing channels, and an upper roofing layer covering the deck, plate layer and tubing. The roofing layer may also have a photovoltaic array panel. The roofing panel may also have a plurality of truss braces, each truss brace being affixed to a lower surface of the deck. In some embodiments, the truss braces are positioned within one of a plurality of truss brace channels formed in a lower surface of the deck. The truss braces have a lower end that terminates in at least one projection extending from a bottom edge of the deck and an upper end forming an opening for slidingly receiving a lower end of a truss brace of an adjacent panel.Type: ApplicationFiled: October 5, 2007Publication date: April 10, 2008Applicant: DAVIS ENERGY GROUP, INC.Inventors: Stephan K. Barsun, Richard C. Bourne
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Patent number: 7322205Abstract: A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.Type: GrantFiled: July 7, 2004Date of Patent: January 29, 2008Assignee: Davis Energy Group, Inc.Inventors: Richard C. Bourne, Brian Eric Lee, Mark J. Berman
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Publication number: 20070289239Abstract: A method of forming an insulated concrete foundation is provided comprising constructing a foundation frame, the frame comprising an insulating form having an opening, inserting a pocket former into the opening; placing concrete inside the foundation frame; and removing the pocket former after the placed concrete has set, wherein the concrete forms a pocket in the placed concrete that is accessible through the opening. The method may further comprise sealing the opening by placing a sealing plug or sealing material in the opening. A system for forming an insulated concrete foundation is provided comprising a plurality of interconnected insulating forms, the insulating forms having a rigid outer member protecting and encasing an insulating material, and at least one gripping lip extending outwardly from the outer member to provide a pest barrier. At least one insulating form has an opening into which a removable pocket former is inserted.Type: ApplicationFiled: May 29, 2007Publication date: December 20, 2007Applicant: DAVIS ENERGY GROUP, INC.Inventors: Brian E. Lee, Stephan K. Barsun, Richard C. Bourne, Marc A. Hoeschele, David A. Springer
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Publication number: 20070227721Abstract: A method is provided for nighttime pre-cooling of a building comprising inputting one or more user settings, lowering the indoor temperature reading of the building during nighttime by operating an outside air ventilation system followed, if necessary, by a vapor compression cooling system. The method provides for nighttime pre-cooling of a building that maintains indoor temperatures within a comfort range based on the user input settings, calculated operational settings, and predictions of indoor and outdoor temperature trends for a future period of time such as the next day. The method reduces energy costs and minimizes energy consumption during periods of peak electric demand.Type: ApplicationFiled: May 29, 2007Publication date: October 4, 2007Applicant: DAVIS ENERGY GROUP, INC.Inventors: David Springer, Leo Rainer
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Publication number: 20070017095Abstract: A rapidly assembled pre-fabricated array of heating elements, such as tubing or wire, on a rigid mesh, for use in radiant panel heating and/or cooling systems, reduce costs by streamlining both the design layouts and the labor operations to fabricate and install the systems. The pre-fabricated arrays may be installed with the mesh on the finish floor side for additional protection of the heating elements during and after installation.Type: ApplicationFiled: June 28, 2005Publication date: January 25, 2007Applicant: DAVIS ENERGY GROUP, INC.Inventors: Richard Bourne, Marc Hoeschele
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Publication number: 20050235666Abstract: A dynamic system controls indoor relative humidity and temperature to achieve specified conditions by applying multiple stages of dehumidification. In addition to an optional stage that increases dehumidification by reducing the speed of the indoor blower, the system uses a reheat coil and multiple valves that allow the reheat coil to function as either a subcooling coil or a partial condenser. Thus the system can maintain specified indoor temperature and humidity conditions even at times when no heating or cooling is needed. The system may have an outdoor condensing unit including a compressor and a condenser operably connected via refrigerant lines to an indoor unit to form a “split system” refrigerant loop.Type: ApplicationFiled: April 27, 2005Publication date: October 27, 2005Applicant: DAVIS ENERGY GROUP, INC.Inventors: David Springer, Marc Hoeschele, Mark Berman, James Phillips
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Patent number: 6931883Abstract: A two stage indirect evaporative cooler that moves air from a blower mounted above the unit, vertically downward into dry air passages in an indirect stage and turns the air flow horizontally before leaving the indirect stage. After leaving the dry passages, a major air portion travels into the direct stage and the remainder of the air is induced by a pressure drop in the direct stage to turn 180° and returns horizontally through wet passages in the indirect stage and out of the unit as exhaust air.Type: GrantFiled: December 18, 2003Date of Patent: August 23, 2005Assignee: Davis Energy Group, Inc.Inventors: Richard C. Bourne, Brian E. Lee, Duncan Callaway
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Publication number: 20050132738Abstract: A two stage indirect evaporative cooler that moves air from a blower mounted above the unit, vertically downward into dry air passages in an indirect stage and turns the air flow horizontally before leaving the indirect stage. After leaving the dry passages, a major air portion travels into the direct stage and the remainder of the air is induced by a pressure drop in the direct stage to turn 180° and returns horizontally through wet passages in the indirect stage and out of the unit as exhaust air.Type: ApplicationFiled: December 18, 2003Publication date: June 23, 2005Applicant: DAVIS ENERGY GROUP, INCInventors: Richard Bourne, Brian Lee, Duncan Callaway
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Publication number: 20050056042Abstract: A roof top cooling unit has an evaporative cooling section that includes at least one evaporative module that pre-cools ventilation air and water; a condenser; a water reservoir and pump that captures and re-circulates water within the evaporative modules; a fan that exhausts air from the building and the evaporative modules and systems that refill and drain the water reservoir. The cooling unit also has a refrigerant section that includes a compressor, an expansion device, evaporator and condenser heat exchangers, and connecting refrigerant piping. Supply air components include a blower, an air filter, a cooling and/or heating coil to condition air for supply to the building, and optional dampers that, in designs that supply less than 100% outdoor air to the building, control the mixture of return and ventilation air.Type: ApplicationFiled: July 7, 2004Publication date: March 17, 2005Applicant: DAVIS ENERGY GROUP, INC.Inventors: Richard Bourne, Brian Lee, Mark Berman
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Publication number: 20050016197Abstract: An evaporative heat exchanger having parallel plates that define alternating dry and wet passages. A water reservoir is located below the plates and is connected to a water distribution system. Water from the water distribution system flows through the wet passages and wets the surfaces of the plates that form the wet passages. Air flows through the dry passages, mixes with air below the plates, and flows into the wet passages before exiting through the top of the wet passages.Type: ApplicationFiled: July 23, 2003Publication date: January 27, 2005Applicant: DAVIS ENERGY GROUP, INC.Inventors: Richard Bourne, Brian Lee, Duncan Callaway
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Patent number: 6845629Abstract: An evaporative heat exchanger having parallel plates that define alternating dry and wet passages. A water reservoir is located below the plates and is connected to a water distribution system. Water from the water distribution system flows through the wet passages and wets the surfaces of the plates that form the wet passages. Air flows through the dry passages, mixes with air below the plates, and flows into the wet passages before exiting through the top of the wet passages.Type: GrantFiled: July 23, 2003Date of Patent: January 25, 2005Assignee: Davis Energy Group, Inc.Inventors: Richard C. Bourne, Brian Eric Lee, Duncan Callaway
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Patent number: 6814070Abstract: A solar water heater has a rotationally-molded water box and a glazing subassembly disposed over the water box that enhances solar gain and provides an insulating air space between the outside environment and the water box. When used with a pressurized water system, an internal heat exchanger is integrally molded within the water box. Mounting and connection hardware is included to provide a rapid and secure method of installation.Type: GrantFiled: January 6, 2003Date of Patent: November 9, 2004Assignee: Davis Energy Group, Inc.Inventors: Richard C. Bourne, Brian E. Lee
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Publication number: 20040129267Abstract: A solar water heater has a rotationally-molded water box and a glazing subassembly disposed over the water box that enhances solar gain and provides an insulating air space between the outside environment and the water box. When used with a pressurized water system, an internal heat exchanger is integrally molded within the water box. Mounting and connection hardware is included to provide a rapid and secure method of installation.Type: ApplicationFiled: January 6, 2003Publication date: July 8, 2004Applicant: Davis Energy Group, Inc.Inventors: Richard C. Bourne, Brian E. Lee
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Patent number: 6574975Abstract: A dual evaporative pre-cooling system is installed packaged air conditioning units. The dual evaporative pre-cooling system includes an evaporative media disposed in a housing through which incoming condenser air flows. A water distribution device is disposed above the evaporative media. A sump and a pump are located below the evaporative media to recirculate water through the water distribution device and a ventilation air pre-cooling coil. A plurality of pipes connect, and allow circulation of, a water source discharged from the pump through the ventilation air pre-cooling coil, and to the water distribution device.Type: GrantFiled: December 19, 2001Date of Patent: June 10, 2003Assignee: Davis Energy Group, Inc.Inventors: Richard C. Bourne, Marshall B. Hunt