Patents Assigned to Hydrostor, Inc.
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Patent number: 11835023Abstract: A hydrostatically compensated compressed air energy storage system may include an accumulator disposed underground and a compressor/expander subsystem in fluid communication. A compensation shaft may extend between an upper and a lower end and define a shaft depth. An upper end wall can cover the upper end of the shaft. A compensation liquid reservoir can be offset above the upper end wall by a reservoir elevation that is at least about 15% of the shaft depth. A compensation liquid flow path may extend between the compensation liquid reservoir and the accumulator and can include the compensation shaft and a liquid supply conduit extending between the compensation liquid reservoir and the upper end of the compensation shaft whereby a total hydrostatic pressure at the lower end of the shaft is greater than a hydrostatic pressure at a depth that is equal to the shaft depth.Type: GrantFiled: February 26, 2020Date of Patent: December 5, 2023Assignee: Hydrostor Inc.Inventors: Davin Young, Cameron Lewis
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Patent number: 11821584Abstract: A thermal storage subsystem may include at least a first storage reservoir configured to contain a thermal storage liquid at a storage pressure that is greater than atmospheric pressure. A liquid passage may have an inlet connectable to a thermal storage liquid source and configured to convey the thermal storage liquid to the liquid reservoir. A first heat exchanger may be provided in the liquid inlet passage and may be in fluid communication between the first compression stage and the accumulator, whereby thermal energy can be transferred from a compressed gas stream exiting a gas compressor/expander subsystem to the thermal storage liquid.Type: GrantFiled: February 13, 2023Date of Patent: November 21, 2023Assignee: Hydrostor Inc.Inventors: Daniel Stradiotto, Cameron Lewis, Davin Young, Andrew McGillis
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Patent number: 11767950Abstract: A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.Type: GrantFiled: September 26, 2022Date of Patent: September 26, 2023Assignee: Hydrostor Inc.Inventors: Cameron Lewis, Andrew McGillis, Davin Young, Curtis Vanwalleghem
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Patent number: 11644150Abstract: A thermal storage subsystem may include at least a first storage reservoir configured to contain a thermal storage liquid at a storage pressure that is greater than atmospheric pressure. A liquid passage may have an inlet connectable to a thermal storage liquid source and configured to convey the thermal storage liquid to the liquid reservoir. A first heat exchanger may be provided in the liquid inlet passage and may be in fluid communication between the first compression stage and the accumulator, whereby thermal energy can be transferred from a compressed gas stream exiting a gas compressor/expander subsystem to the thermal storage liquid.Type: GrantFiled: November 15, 2021Date of Patent: May 9, 2023Assignee: Hydrostor Inc.Inventors: Daniel Stradiotto, Cameron Lewis, Davin Young, Andrew McGillis
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Patent number: 11519393Abstract: A compressed air energy storage system may have an accumulator and a thermal storage subsystem having a cold storage chamber for containing a supply of granular heat transfer, a hot storage chamber and at least a first mixing chamber in the gas flow path and having an interior in which the compressed gas contacts the granular heat transfer particles at a mixing pressure that is greater than the cold storage pressure and the hot storage pressure and a conveying system operable to selectably move the granular heat transfer particles from the cold storage chamber, through the first mixing chamber and into the hot storage chamber, and vice versa.Type: GrantFiled: January 13, 2020Date of Patent: December 6, 2022Assignee: Hydrostor Inc.Inventors: Cameron Lewis, Andrew McGillis
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Patent number: 11473724Abstract: A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.Type: GrantFiled: October 6, 2020Date of Patent: October 18, 2022Assignee: Hydrostor Inc.Inventors: Cameron Lewis, Andrew McGillis, Davin Young, Curtis Vanwalleghem
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Patent number: 11274792Abstract: A thermal storage subsystem may include at least a first storage reservoir disposed at least partially under ground configured to contain a thermal storage liquid at a storage pressure that is greater than atmospheric pressure. A liquid passage may have an inlet connectable to a thermal storage liquid source and configured to convey the thermal storage liquid to the liquid reservoir. A first heat exchanger may be provided in the liquid inlet passage and may be in fluid communication between the first compression stage and the accumulator, whereby thermal energy can be transferred from a compressed gas stream exiting a gas compressor/expander subsystem to the thermal storage liquid.Type: GrantFiled: March 9, 2018Date of Patent: March 15, 2022Assignee: Hydrostor Inc.Inventors: Daniel Stradiotto, Cameron Lewis, Davin Young, Andrew McGillis
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Patent number: 10859207Abstract: A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.Type: GrantFiled: January 31, 2018Date of Patent: December 8, 2020Assignee: Hydrostor Inc.Inventors: Cameron Lewis, Andrew McGillis, Davin Young, Curtis Vanwalleghem
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Patent number: 10760739Abstract: A compressed gas energy storage system may include an accumulator for containing a layer of compressed gas atop a layer of liquid. A gas conduit may have an upper end in communication with a gas compressor/expander subsystem and a lower end in communication with accumulator interior for conveying compressed gas into the compressed gas layer of the accumulator when in use. A shaft may have an interior for containing a quantity of a liquid and may be fluidly connectable to a liquid source/sink via a liquid supply conduit. A partition may cover may separate the accumulator interior from the shaft interior. An internal accumulator force may act on the inner surface of the partition and the liquid within the shaft may exert an external counter force on the outer surface of the partition, whereby a net force acting on the partition is less than the accumulator force.Type: GrantFiled: July 31, 2019Date of Patent: September 1, 2020Assignee: Hydrostor Inc.Inventors: Cameron Lewis, Andrew McGillis, Davin Young, Curtis Vanwalleghem
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Patent number: 9784413Abstract: Method is for operating fluid-processing plant configured to generate and store pressurized fluid, and spaced apart from body of water.Type: GrantFiled: October 29, 2014Date of Patent: October 10, 2017Assignee: Hydrostor Inc.Inventors: Cameron Lewis, Curtis VanWalleghem, Kyle Ryan
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Patent number: 9416796Abstract: Disclosed is an energy-accumulation apparatus including an accumulator body assembly defining a pneumatically-pressurizable chamber. The pneumatically-pressurizable chamber is configured to communicate with a pneumatic-pressure source. The pneumatic-pressure source is positioned on a shore and being located away from a body of water. The energy-accumulation apparatus also includes an outer surface extending from the accumulator body assembly. The outer surface is configured to securely contact a sloped floor zone of a body of water at a position being spaced apart from a shore.Type: GrantFiled: January 29, 2014Date of Patent: August 16, 2016Assignee: Hydrostor Inc.Inventors: Curtis VanWalleghem, Cameron Lewis
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Patent number: 9410559Abstract: An energy-accumulation apparatus includes a variable-buoyancy assembly configured to be selectively buoyant in a body of water. The energy-accumulation apparatus also includes a delivery assembly coupled to the variable-buoyancy assembly. The delivery assembly is configured to deliver the variable-buoyancy assembly within the body of water between a first position to a second position.Type: GrantFiled: January 29, 2014Date of Patent: August 9, 2016Assignee: Hydrostor, Inc.Inventors: Curtis VanWalleghem, Cameron Lewis