Patents by Inventor Richard T. Gowen

Richard T. Gowen 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: 5145283
    Abstract: For gasketing slip joint applications, a method is disclosed for clean pipe laying involving shrink wrapping the bells and spigots of pipes and conduits prior to their installation in the field and circumferentially cutting an aperture in the shrink wrap at the end of the pipe to permit insertion of the end of a mating pipe. The above procedure provides a clean environment so that contaminants do not enter the pipe and eliminates the cleaning step normally necessary when joining or connecting water, sewer, or drainage pipe in an excavated trench. In the case of water, sewer, or drainage pipe, the O-ring seal of the bell is lubricated and then this end of the pipe is shrink wrapped, as is the mating tapered pipe to be inserted into the bell. The shrink wrap prevents contaminants from the excavation or otherwise from entering into either of the pipes to be joined, thereby eliminating joint failure due to contamination during installation as well as pipeline contamination in general.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: September 8, 1992
    Inventor: Richard T. Gowen