Patents by Inventor Donald Ramsay

Donald Ramsay 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).

  • Adjustable tremolo bridge
    Patent number: 6989483
    Abstract: A tremolo assembly is implemented for modulating the string tension on a guitar by mounting a bridge carrier on a sliding mount with the fore and aft displacement thereof effected by a transverse cam implemented fulcrum piece opposing the string tension. The sliding mount limits the bridge translation to the string plane, thus resolving all bending and lateral string forced. A forwardly and rearwardly aligned set of manual levers is then useful in modulating downward and upward the tension of the strings in unison against a set of bias springs.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: January 24, 2006
    Inventor: Donald Ramsay
  • Adjustable tremolo bridge
    Publication number: 20050150350
    Abstract: A tremolo assembly is implemented for modulating the string tension on a guitar by mounting a bridge carrier on a sliding mount with the fore and aft displacement thereof effected by a transverse cam implemented fulcrum piece opposing the string tension. The sliding mount limits the bridge translation to the string plane, thus resolving all bending and lateral string forced. A forwardly and rearwardly aligned set of manual levers is then useful in modulating downward and upward the tension of the strings in unison against a set of bias springs.
    Type: Application
    Filed: January 12, 2004
    Publication date: July 14, 2005
    Inventor: Donald Ramsay