Patents by Inventor Thomas V. Labbe

Thomas V. Labbe 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).

  • Primary manway cover removal
    Patent number: 4398649
    Abstract: A method and apparatus for removing and replacing the primary manway cover (18) which is secured to the shell (10) of a nuclear steam generator by a multiplicity of nuts (24) and studs (22), including the steps of removing two of the studs and replacing them with two overlength special studs (30); removing the nuts (24) from all of the other studs (22); unthreading the nuts (24) on the overlength studs (30) until the cover (18) is positioned outside the ends (28) of the other studs (22); attaching (44) a cable (40) to the periphery of the cover; removing one of the overlength studs (30); and pivoting the cover (18) on the other of the overlength studs (30) out of alignment with the manway opening while supporting it by means of the cable (40).
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: August 16, 1983
    Assignee: Combustion Engineering, Inc.
    Inventor: Thomas V. Labbe