Patents by Inventor Jon J. Radosay

Jon J. Radosay 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).

  • Emergency seal
    Patent number: 4449719
    Abstract: A safety seal for a shaft passing through a housing. The seal is normally maintained in a non-sealing relationship to the shaft, but may be actuated during emergency conditions by levers. The seal includes an annular, split housing having a radially extending compartment which contains at least two seal members which are held together by a bias to define a seal annulus. The seal members are radially contracted into sealing engagement and expanded to a non-sealing position by cams or levers mounted in the seal members.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: May 22, 1984
    Assignee: John Crane Houdaille, Inc.
    Inventors: Jon J. Radosay, John R. Wilson