Patents by Inventor Francisco Membrive Martinez

Francisco Membrive Martinez 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: 7845613
    Abstract: A ground securing rod includes a hollow metal rod (1), whose drive-in end has a flat helical section whose diameter is slightly larger than that of the bar (2), terminating in a tip (3). The section is made with the body of the rod (1) itself by a reduction in its diameter in combination with stamping of the rod in order to flatten it, whereby it is twisted until the helical section is formed, which has a cone-shaped reinforcement at its base (4), while at its upper end the rod (1) has an attached upper reinforcing piece (5), having a seat (6) for a torsion lever (7) that can be inserted into a through opening (8) located at the upper end of the rod and is positioned in the area covered by the upper reinforcing piece (5).
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: December 7, 2010
    Inventor: Francisco Membrive Martinez
  • Publication number: 20100032540
    Abstract: A ground securing rod includes a hollow metal rod (1), whose drive-in end has a flat helical section whose diameter is slightly larger than that of the bar (2), terminating in a tip (3). The section is made with the body of the rod (1) itself by a reduction in its diameter in combination with stamping of the rod in order to flatten it, whereby it is twisted until the helical section is formed, which has a cone-shaped reinforcement at its base (4), while at its upper end the rod (1) has an attached upper reinforcing piece (5), having a seat (6) for a torsion lever (7) that can be inserted into a through opening (8) located at the upper end of the rod and is positioned in the area covered by the upper reinforcing piece (5).
    Type: Application
    Filed: August 7, 2008
    Publication date: February 11, 2010
    Inventor: FRANCISCO MEMBRIVE MARTINEZ
  • Patent number: D816982
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 8, 2018
    Assignee: Francisco Membrive Martinez
    Inventor: Francisco Membrive Martinez