Patents by Inventor Bill A. Bothe, II

Bill A. Bothe, II 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).

  • Purge gas system for welding pipes
    Patent number: 4723064
    Abstract: A purge gas system for welding pipes having a flat circular plate with a flat gasket adapted to engage the end of a pipe section and a pair of toggle joints positioned inside the end of the pipe and formed to have their knuckles press outwardly against the interior surface of the pipe upon rotation of a thumbscrew threadably engaged on a tube passing through the center of the plate, the tube being hollow for supplying purge gas and for permitting removal of ambient atmosphere displaced by the purge gas.
    Type: Grant
    Filed: August 2, 1986
    Date of Patent: February 2, 1988
    Inventor: Bill A. Bothe, II