Patents by Inventor Colin William Francis

Colin William Francis 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).

  • Pier
    Patent number: 7241079
    Abstract: A pier (10) to be driven into a ground surface includes an auger member (11) having a shaft (12) that is rotated in a first direction to drive the auger member into the ground surface, and a compaction member (16) having a sleeve (17) surrounding a portion of the shaft. The compaction member (16) includes a compaction part (18) attached to and extending laterally outwardly of the sleeve (17). A threaded rod (23) engages the shaft (12) and is rotated to cause the compaction member (16) to move down the shaft (12) and compact the soil around the shaft.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: July 10, 2007
    Inventor: Colin William Francis