Patents by Inventor Randal L. Custer

Randal L. Custer 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).

  • Method and apparatus for multiple-channel dispensing of natural gas
    Patent number: 5653269
    Abstract: A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the pressure of the CNG in the vehicle tank.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 5, 1997
    Inventors: Charles E. Miller, John F. Waers, James A. Magin, Randal L. Custer, John T. Lopez
  • Method and apparatus for dispensing natural gas with pressure sensor calibration
    Patent number: 5597020
    Abstract: A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the pressure of the CNG in the vehicle tank.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: January 28, 1997
    Inventors: Charles E. Miller, John F. Waers, James A. Magin, Randal L. Custer, John T. Lopez
  • Method and apparatus for dispensing natural gas
    Patent number: 5259424
    Abstract: A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the pressure of the CNG in the vehicle tank.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: November 9, 1993
    Assignee: DVCO, Inc.
    Inventors: Charles E. Miller, John F. Waers, James A. Magin, Randal L. Custer, John T. Lopez
  • Method and apparatus for dispensing natural gas
    Patent number: 5238030
    Abstract: A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing hose assembly. Pressure and temperature transducers connected to the supply plenum measure the stagnation pressure and temperature of the CNG and the ambient temperature, and a pressure transducer fluidically connected to the vehicle tank via the dispensing hose assembly monitors the discharge pressure of the CNG.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: August 24, 1993
    Assignee: DVCO
    Inventors: Charles E. Miller, John Waers, James A. Magin, Randal L. Custer