Patents by Inventor Walter B. Ingram

Walter B. Ingram 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: 4437813
    Abstract: A compressor that uses an excess of lubricant for sealing and cooling is driven by a natural gas engine and pumps natural gas to a transmission outlet, the lubricant drawing off moisture from the gas and portion then being pumped through a circuit in which moisture is removed after which the lubricant is returned to the compressor.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: March 20, 1984
    Assignee: Frick Company
    Inventor: Walter B. Ingram