Patents by Inventor Walter J. Vasoll

Walter J. Vasoll 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: 4485542
    Abstract: A pneumatically operated piston-cylinder is adapted via concentrically located bolts to be secured coaxially of a rotary shaft of machinery about which a force fit annular seal is to be installed or removed. An annular adapter positioned beyond the cylinder from a connection with the piston includes cap screws for fastener mounting of a seal thereon. By directional application of pneumatic pressure, the piston and adapter can be controllably extended toward or withdrawn from the seal cavity of the machinery to install or remove a seal thereat.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: December 4, 1984
    Assignee: Dresser Industries, Inc.
    Inventor: Walter J. Vasoll