Patents Assigned to Wagner & Brown, Ltd.
  • Patent number: 5351726
    Abstract: A system and method for refueling vehicle storage tanks with compressed natural gas (CNG) are provided that utilize a single stage compressor operable at suction pressures ranging from about 330 to about 3600 psig and discharge pressures ranging from about 330 to about 4500 psig in combination with a temporary storage tank for CNG at an intermediate storage pressure of from about 330 to about 4500 psig, preferably from about 1700 to about 2700 psig, selectively filling vehicle storage tanks with CNG from an inlet source, from the compressor discharge and from the intermediate storage tanks, and selectively supplying CNG to the compressor inlet at either the available line pressure or the intermediate storage pressure.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: October 4, 1994
    Assignee: Wagner & Brown, Ltd.
    Inventor: David A. Diggins