Patents by Inventor John R. Bowlsbey

John R. Bowlsbey 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).

  • Filter element
    Patent number: 5639369
    Abstract: A support element is provided for a tubular filter device having an oversized filter sock. The support element provides relief portions within which excess filter media of the filter sock enters, during use of the tubular filter device, to eliminate detrimental wrinkling and compaction of the filter media.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: June 17, 1997
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: John R. Bowlsbey
  • Filter cap affixed to a filter sleeve
    Patent number: 5580456
    Abstract: Improved apparatus and method for installing a filter sleeve in filtration apparatus is provided. In its basic form, the present invention uses a filter sleeve with a pre-installed end cap bonded to at least one of its ends. Through use of a bonding process such as sonic welding, the end cap and filter sleeve form a tight seal with one another which is durable and quite resistant to leakage. The end cap can be provided with receptacles to allow for ready interface with existing filtration apparatus, eliminating presently utilized mounting procedures which can be ineffective, burdensome, and time consuming. Additionally, improved method is also provided for securely sealing the opposite end of the filter sleeve.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 3, 1996
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: John R. Bowlsbey
  • Device for mounting a filter sleeve to a filter apparatus
    Patent number: 5456834
    Abstract: Improved apparatus and method for installing a filter sleeve in filtration apparatus is provided. In its basic form, the present invention uses a filter sleeve with a pre-installed end cap bonded to at least one of its ends. Through use of a bonding process such as sonic welding, the end cap and filter sleeve form a tight seal with one another which is durable and quite resistant to leakage. The end cap can be provided with receptacles to allow for ready interface with existing filtration apparatus, eliminating presently utilized mounting procedures which can be ineffective, burdensome, and time consuming. Additionally, improved method is also provided for securely sealing the opposite end of the filter sleeve.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: October 10, 1995
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: John R. Bowlsbey