Patents by Inventor James E. Voelker

James E. Voelker 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).

  • Gasket for multiple groove pipe and method of using same
    Patent number: 4223895
    Abstract: A resilient gasket adapter to form a tight seal between pipes, said gasket having a plurality of projections which interact with cooperating pipe structure to retain the gasket in position as pipes are joined. This gasket overcomes the problem of fishmouthing, a situation in which a gasket is pushed out of a retaining groove as pipes are joined.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: September 23, 1980
    Assignee: Robintech, Inc.
    Inventors: James E. Roberts, Jr., James E. Voelker