Patents by Inventor Yves Albert Robert Lassarat

Yves Albert Robert Lassarat 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).

  • Automatic tube puller
    Patent number: 4095335
    Abstract: An improved tool is provided for the removal of tubes from heat exchangers. First a mandrel is threaded into the end of a tube. The present tool is then fitted over the mandrel and is responsive to trigger-actuated hydraulic and/or pneumatic control means to automatically cause the tool to grip the mandrel and thereafter move the mandrel with its attached tube away from the tube sheet of the heat exchanger.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: June 20, 1978
    Assignee: Trouvay & Cauvin
    Inventor: Yves Albert Robert Lassarat