Patents by Inventor Steve Pfister

Steve Pfister has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11982480
    Abstract: A refrigeration system includes a high-pressure side with a gas cooler configured, while the refrigeration system is powered by a main power supply and is operating to provide refrigeration, to cool refrigerant on the high-pressure side. The refrigeration system includes a low-pressure side with one or more evaporators. The refrigeration system includes an auxiliary compressor coupled to a backup power supply. An input of the auxiliary compressor is coupled to fluid conduit of the low-pressure side, and an output of the auxiliary compressor is coupled to fluid conduit of the high-pressure side. A controller is communicatively coupled to the auxiliary compressor. After determining that the main power supply is unavailable, the controller causes the auxiliary compressor to turn on to move refrigerant from the low-pressure side to the high-pressure side.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: May 14, 2024
    Assignee: Heatcraft Refrigeration Products LLC
    Inventors: Douglas Cole, Steve Pfister
  • Publication number: 20240053076
    Abstract: A refrigeration system includes a high-pressure side with a gas cooler configured, while the refrigeration system is powered by a main power supply and is operating to provide refrigeration, to cool refrigerant on the high-pressure side. The refrigeration system includes a low-pressure side with one or more evaporators. The refrigeration system includes an auxiliary compressor coupled to a backup power supply. An input of the auxiliary compressor is coupled to fluid conduit of the low-pressure side, and an output of the auxiliary compressor is coupled to fluid conduit of the high-pressure side. A controller is communicatively coupled to the auxiliary compressor. After determining that the main power supply is unavailable, the controller causes the auxiliary compressor to turn on to move refrigerant from the low-pressure side to the high-pressure side.
    Type: Application
    Filed: August 9, 2022
    Publication date: February 15, 2024
    Inventors: Douglas Cole, Steve Pfister
  • Publication number: 20160265814
    Abstract: The present application provides a condenser for a cascade refrigeration system. The condenser may include an outer shell, a microchannel coil, an ammonia refrigerant flowing through the microchannel coil, and a water based coolant flowing through the outer shell for heat exchange with the ammonia refrigerant.
    Type: Application
    Filed: March 11, 2015
    Publication date: September 15, 2016
    Inventor: Steve Pfister
  • Publication number: 20160178244
    Abstract: The present application provides a cascade refrigeration system. The cascade refrigeration system may include a first side cycle, a second side cycle with a second side cycle carbon dioxide refrigerant, and an auxiliary cooling system to cool the second side cycle carbon dioxide refrigerant in the event of a power outage. The auxiliary cooling system may include an auxiliary carbon dioxide refrigerant.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 23, 2016
    Inventors: Robert DelVentura, Ignacio Varela Chaparro, Steve Pfister
  • Publication number: 20120316626
    Abstract: A therapeutic device for providing cold or heat therapy is provided. The device includes solid spherical materials and a medium that may include an alcohol mixture. An impermeable enclosure contains the spherical materials and the medium to form the therapeutic device. The therapeutic device applies cold or heat therapy and is pliable to conform to curved contours of the body. The therapeutic device also has a weight which provides pressure to, and desired contact with, the injured area. Certain embodiments further include an accessory for holding the device in contact or otherwise close proximity to a body region being treated.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Inventors: MaryCarol Dolivier, Arthur Blackwood, Steve Pfister
  • Publication number: 20110186591
    Abstract: An on demand consumable product heating and/or cooling dispenser that relatively quickly adjusts the temperature of a consumable product to a desired temperature is provided. Fluid circulates around the consumable product in a heat transfer device. The heat transfer device controls the motion of the product to maximize heat transfer. The dispenser delivers the product to the heat transfer device, to a storage compartment, and/or to a consumer. The dispenser senses the product temperature and controls the circulation of a fluid until the desired temperature is reached. Also provided is an on demand consumable product heating and/or cooling dispenser that maintains a relatively small queue of consumable product at a desired temperature in an insulated storage device. Consumable product at an ambient temperature is transferred to the insulate storage device as conditioned consumable product is dispenser to the user.
    Type: Application
    Filed: July 20, 2009
    Publication date: August 4, 2011
    Inventor: Steve Pfister
  • Patent number: 7824725
    Abstract: The present disclosure relates a method for extending a shelf life of at least one packaged composition within a consumer accessible cooling device adapted to cool the at least one packaged composition to a composition temperature which is a first supercooled temperature. The method comprises storing the at least one packaged composition within the consumer accessible cooling device at a first supercooled temperature and increasing the composition temperature to a second temperature during a time period in which the at least one packaged composition will not be removed from the consumer accessible cooling device by a consumer. The at least one packaged composition comprises a pressurized composition in a liquid phase within a sealed container. The pressurized composition comprises a solvent and a solute substantially dissolved in the solvent and is at a pressure greater than atmospheric pressure.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: November 2, 2010
    Assignee: The Coca-Cola Company
    Inventor: Steve Pfister
  • Publication number: 20080241338
    Abstract: The present disclosure relates a method for extending a shelf life of at least one packaged composition within a consumer accessible cooling device adapted to cool the at least one packaged composition to a composition temperature which is a first supercooled temperature. The method comprises storing the at least one packaged composition within the consumer accessible cooling device at a first supercooled temperature and increasing the composition temperature to a second temperature during a time period in which the at least one packaged composition will not be removed from the consumer accessible cooling device by a consumer. The at least one packaged composition comprises a pressurized composition in a liquid phase within a sealed container. The pressurized composition comprises a solvent and a solute substantially dissolved in the solvent and is at a pressure greater than atmospheric pressure.
    Type: Application
    Filed: March 19, 2008
    Publication date: October 2, 2008
    Applicant: THE COCA-COLA COMPANY
    Inventor: Steve Pfister