Patents by Inventor John G. Crandall

John G. Crandall 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).

  • Publication number: 20230287874
    Abstract: A system, apparatus, and method for improving performance of a pressurized system that attenuates pulsations in gases having varying acoustic velocities.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 14, 2023
    Inventors: Glen F. Chatfield, John G. Crandall, Dale K. Wells
  • Patent number: 11692533
    Abstract: A natural gas pumping system that includes six reciprocating compressor cylinders, the reciprocating pistons of the six compressors having cycles offset by 60 degrees one from another.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: July 4, 2023
    Assignee: Optimum Power Technology, L.P.
    Inventors: Glen F. Chatfield, John G. Crandall, Dale K. Wells
  • Publication number: 20220136493
    Abstract: A natural gas pumping system that includes six reciprocating compressor cylinders, the reciprocating pistons of the six compressors having cycles offset by 60 degrees one from another.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 5, 2022
    Inventors: Glen F. Chatfield, John G. Crandall, Dale K. Wells
  • Publication number: 20190178239
    Abstract: A natural gas pumping system that includes a reciprocating compressor having at least two cylinders, a first conduit in fluid communication with an outlet of the first cylinder, a second conduit in fluid communication with an outlet of the second cylinder, and a junction in fluid communication with the first conduit and the second conduit.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 13, 2019
    Inventors: Glen F. Chatfield, John G. Crandall, Dale K. Wells
  • Patent number: 9567996
    Abstract: A system, apparatus, and method for attenuating pulsations in a pumping system.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: February 14, 2017
    Assignee: OPTIMUM Pumping Technology, Inc.
    Inventors: Glen F. Chatfield, John G. Crandall
  • Publication number: 20140154107
    Abstract: A natural gas pumping system that includes a reciprocating compressor having at least two cylinders, a first conduit in fluid communication with an outlet of the first cylinder, a second conduit in fluid communication with an outlet of the second cylinder, and a junction in fluid communication with the first conduit and the second conduit.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: OPTIMUM Power Technology, L.P.
    Inventors: Glen F. Chatfield, John G. Crandall, Dale K. Wells
  • Publication number: 20140127047
    Abstract: A pump efficiency improvement device. The pump efficiency improvement device includes first and second junctions having a main connector, a first branch connector, and a second branch connector; and first and second branches extending between the first and second junctions. A header has a first end coupled to the pump and a second end coupled to the main connector of the first junction, the header having a length that improves performance at the pump.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: OPTIMUM Power Technology L.P.
    Inventors: Glen F. Chatfield, John G. Crandall
  • Publication number: 20120325356
    Abstract: A system, apparatus, and method for attenuating pulsations in a pumping system. The apparatus includes two pipe loops in fluid communication with a pump. Each of the pipe loops includes two branches with the first branch being longer than the second branch by an amount equal to half of a primary wavelength within a range of wavelengths propagating in a fluid discharged from the pump.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 27, 2012
    Applicant: OPTIMUM POWER TECHNOLOGY L.P.
    Inventors: Glen F. Chatfield, John G. Crandall
  • Patent number: 7765175
    Abstract: An expert system having a data storage device and a processor. The data storage device stores models having attributes, objectives having rules for evaluating the models, and strategies having rules for modifying the attributes. The processor evaluates a selected model in accordance with a selected objective and having the variable attribute set in accordance with a selected strategy to determine a characteristic value associated with the selected model and the variable attribute setting. The processor also stores information associated with improved results in the data storage device.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: July 27, 2010
    Assignee: OPTIMUM Power Technology, L.P.
    Inventors: John G. Crandall, Glen F. Chatfield
  • Publication number: 20100111713
    Abstract: A system, apparatus, and method for improving performance of a pressurized system.
    Type: Application
    Filed: January 12, 2010
    Publication date: May 6, 2010
    Applicant: OPTIMUM POWER TECHNOLOGY L.P.
    Inventors: Glen F. Chatfield, John G. Crandall, Dale K. Wells
  • Publication number: 20090038684
    Abstract: A system, apparatus, and method for attenuating pulsations in a pumping system.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 12, 2009
    Applicant: OPTIMUM Power Technology L.P.
    Inventors: Glen F. Chatfield, John G. Crandall
  • Patent number: 7260516
    Abstract: An apparatus, system, and method for optimization. The apparatus, system, and method include a mechanism for ending an optimization when all models within one design tolerance of an optimum model have been simulated.
    Type: Grant
    Filed: August 31, 2002
    Date of Patent: August 21, 2007
    Assignee: OPTIMUM Power Technology, L.P.
    Inventors: Glen F. Chatfield, John G. Crandall
  • Publication number: 20040128117
    Abstract: A method, apparatus, and system for creating and operating an expert system.
    Type: Application
    Filed: September 18, 2003
    Publication date: July 1, 2004
    Inventors: John G. Crandall, Glen F. Chatfield
  • Publication number: 20030046049
    Abstract: An apparatus, system, and method for optimization. The apparatus, system, and method include a mechanism for ending an optimization when all models within one design tolerance of an optimum model have been simulated.
    Type: Application
    Filed: August 31, 2002
    Publication date: March 6, 2003
    Inventors: Glen F. Chatfield, John G. Crandall