Patents by Inventor Walter Duane Ollinger

Walter Duane Ollinger 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).

  • Oil separator and cooler
    Patent number: 6579335
    Abstract: Oil which has been heated by use in a gas compressor is cooled by transferring the heat from the oil to gas upstream from the compressor. Specifically, the hot oil and gas leaving the compressor are separated by feeding the oil-gas mixture along a tangent of a cylindrical chamber. The oil drops through holes in the bottom of the chamber into a upper reservoir. The oil flows from the upper reservoir into a tube which extends through a heat exchange having cold natural gas outside the tube. The oil flows from the tube into a lower reservoir and from there into the compressor.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: June 17, 2003
    Inventor: Walter Duane Ollinger
  • Oil separator and cooler
    Patent number: 6521023
    Abstract: Oil which has been heated by use in a gas compressor is cooled by transferring the heat from the oil to gas upstream from the compressor.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: February 18, 2003
    Inventor: Walter Duane Ollinger
  • Oil separator and cooler
    Publication number: 20030005667
    Abstract: Oil which has been heated by use in a gas compressor is cooled by transferring the heat from the oil to gas upstream from the compressor.
    Type: Application
    Filed: September 6, 2002
    Publication date: January 9, 2003
    Inventor: Walter Duane Ollinger