Patents by Inventor Ahmad Sith

Ahmad Sith 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).

  • Safety interlock braking system for height adjustable table
    Patent number: 6443075
    Abstract: A height adjustable mechanism for supporting a work surface for vertical movement relative to a base includes a counterbalance mechanism for providing a force opposing a downward force tending to lower the work surface; a brake mechanism for releasably retaining the work surface in a desired vertical position; a user operated release mechanism for selectively releasing the brake mechanism to permit vertical movement of the work surface; and an interlock mechanism for preventing release of the brake mechanism if the force and the downward force are out of balance by some given extent.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: September 3, 2002
    Assignee: Weber Knapp Company
    Inventors: Christopher T. Hahn, Peter J. Kerl, Ahmad Sith, Holly M. Carlson
  • Flexible pipe coupling
    Patent number: D600784
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 22, 2009
    Assignee: Victaulic Company
    Inventors: Vance W. Henry, John W. Pierce, Douglas R. Dole, Scott D. Madara, Ahmad Sith
  • Rigid pipe coupling
    Patent number: D605734
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: December 8, 2009
    Assignee: Victaulic Company
    Inventors: Vance W. Henry, John W. Pierce, Douglas R. Dole, Scott D. Madara, Ahmad Sith
  • Flexible pipe coupling
    Patent number: D608865
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: January 26, 2010
    Assignee: Victaulic Company
    Inventors: Vance W. Henry, John W. Pierce, Douglas R. Dole, Scott D. Madara, Ahmad Sith
  • Flexible pipe coupling segment
    Patent number: D608866
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: January 26, 2010
    Assignee: Victaulic Company
    Inventors: Vance W. Henry, John W. Pierce, Douglas R. Dole, Scott D. Madara, Ahmad Sith