Patents by Inventor David K. Harper

David K. Harper 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).

  • Formed seal ring for a liquid gas separating element
    Patent number: 8734554
    Abstract: A gas compression system includes a compressor operable to discharge a mixed flow of gas and lubricant, a separator tank including an opening having a first face, and a separator element including a disk portion having a second face and a third face. The separator element is positioned at least partially within the opening and is operable to separate at least a portion of the lubricant from the mixed flow of gas and lubricant. A lid is coupled to the separator tank and includes a fourth face. A one-piece seal ring is coupled to the disk and is compressed between the lid, the disk, and the separator tank to define a first airtight seal between the first face and the second face and a second airtight seal between the third face and the fourth face.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 27, 2014
    Assignee: Ingersoll-Rand Company
    Inventors: David K. Harper, Daniela Zinic, Wolfgang Heikamp
  • FORMED SEAL RING FOR A LIQUID GAS SEPARATING ELEMENT
    Publication number: 20120285559
    Abstract: A gas compression system includes a compressor operable to discharge a mixed flow of gas and lubricant, a separator tank including an opening having a first face, and a separator element including a disk portion having a second face and a third face. The separator element is positioned at least partially within the opening and is operable to separate at least a portion of the lubricant from the mixed flow of gas and lubricant. A lid is coupled to the separator tank and includes a fourth face. A one-piece seal ring is coupled to the disk and is compressed between the lid, the disk, and the separator tank to define a first airtight seal between the first face and the second face and a second airtight seal between the third face and the fourth face.
    Type: Application
    Filed: January 14, 2011
    Publication date: November 15, 2012
    Applicant: INGERSOLL-RAND COMPANY
    Inventors: David K. Harper, Daniela Zinic, Wolfgang Heikamp