Patents by Inventor Mitchell Pratt

Mitchell Pratt 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: 8950441
    Abstract: Embodiments of the present invention are directed toward a reciprocating compressor having a high pressure storage vessel let down for a CNG station for refueling motor vehicles, wherein the CNG station design utilizes inlet gas from a local gas utility. By supplementing the inlet gas with a pressure let down in order to de-pressurize the gas from a high-pressure storage vessel, the CNG station has the ability to increase and adjust its flow capacity.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: February 10, 2015
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Patent number: 8875750
    Abstract: A reciprocating compressor comprises a gas inlet section including an inlet gas meter for metering inlet gas from a high pressure storage vessel, a compressor, a valve control panel and storage, a pressure let down that depressurizes the high pressure gas from the high pressure storage vessel to the inlet of the compressor section, a heat exchanger having thermal storage media, and a dispenser.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: November 4, 2014
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Patent number: 8839829
    Abstract: Embodiments of the present invention provide a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: September 23, 2014
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20130068345
    Abstract: A reciprocating compressor comprises a gas inlet section including an inlet gas meter for metering inlet gas from a high pressure storage vessel, a compressor, a valve control panel and storage, a pressure let down that depressurizes the high pressure gas from the high pressure storage vessel to the inlet of the compressor section, a heat exchanger having thermal storage media, and a dispenser.
    Type: Application
    Filed: November 16, 2012
    Publication date: March 21, 2013
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110303323
    Abstract: Embodiments of the present invention are directed toward a reciprocating compressor having a high pressure storage vessel let down for a CNG station for refueling motor vehicles, wherein the CNG station design utilizes inlet gas from a local gas utility. By supplementing the inlet gas with a pressure let down in order to de-pressurize the gas from a high-pressure storage vessel, the CNG station has the ability to increase and adjust its flow capacity.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 15, 2011
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110240139
    Abstract: Embodiments of the present invention provide a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Application
    Filed: May 16, 2011
    Publication date: October 6, 2011
    Inventors: Denis Ding, Mitchell Pratt
  • Patent number: 7967036
    Abstract: The present invention provides a natural gas compression system, comprising a gas inlet component for the entrance of natural gas into the system, a booster component for increasing the pressure of the natural gas, a drying component for drying the natural gas, a compressor component including a reciprocating compressor for further increasing the pressure of the natural gas, a valve control panel and storage component, and a dispensing component.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: June 28, 2011
    Assignee: Clean Energy Fuels Corp.
    Inventors: Denis Ding, Mitchell Pratt
  • Publication number: 20110101024
    Abstract: The present invention provides a modular natural gas compressor system or compressing natural gas so that it can be used to refuel motor vehicles. This system permits easy assembly and disassembly of compressor stations, as each individual compressor unit is shaped so that it will fit on a base structure. Specifically, the modular system is comprised of a prefabricated, mass produced base skid having at least one allowed space of standardized dimensions and at least one natural gas compressor unit, the base of which is shaped to fit in a allowed space of the base skid. Additional compressed natural gas compressor units or booster units, the bases of which are also shaped to fit in the allowed spaces of the base skid, may be added to increase the efficiency or functionality of the system. Liquefied natural gas dispenser units may also be designed to have bases that fit in the allowed spaces of the base skid, and can be added to the base skid to create a CNG compressor/LNG dispenser hybrid system.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 5, 2011
    Inventors: Denis Ding, Mitchell Pratt