Patents by Inventor Dennis Armstrong

Dennis Armstrong 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: 9489929
    Abstract: An improved tuning and tensioning apparatus for an electric guitar equipped with a tremolo system, the plurality of guitar strings being tensionly secured between the tremolo bridge and a combination lug guide/nut secured below the headstock of the guitar, the strings secured in the lug guide/nut to a plurality of heaving lugs, each An improved tuning and tensioning apparatus for an electric of the heaving lugs being rigidly secured to a tension post on the headstock, the tension post being rotatable by a selective tensioner, thus allowing the musician to retune and retension the guitar strings in an uninterrupted manner while playing the guitar and utilizing the tremolo system.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: November 8, 2016
    Inventor: Dennis Armstrong
  • Patent number: 9330639
    Abstract: An adjustable pitch stop for a tremolo bar of an electric guitar, the adjustable pitch stop having a generally C-clamp or U-shaped clamp and set screw to secure the pitch stop to the tremolo bar, the C-clamp having a tubular member attached thereto, there being a threaded male member slidably secured through the tubular member, the threaded male member having an adjustment knob positioned at one end to adjust the positioning of the male threaded member, the male threaded member having a stop member at the opposing end for contact with the body of the electric guitar, the being interposed between the adjustment knob and the tubular member, a first locking nut, there being disposed a second locking nut and biasing component secured between the stop member and the tubular member allowing the presetting of two descending notes.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: May 3, 2016
    Inventor: Dennis Armstrong
  • Publication number: 20140165823
    Abstract: A removable inline signal interrupter having a male/female combination plug, the male portion of the plug insertable into an electric guitar output receptacle, the female portion of the male/female plug having an internal negative-negative connection and an internal positive-positive connection, the positive-positive connection extending externally from the female portion of the male/female plug, and having a spring loaded on/off switch incorporated into the circuitry, the female portion of the male/female plug serving as a receptacle for the insertion of a male plug from the amplifier, the spring-loaded on/off lever switch allowing the guitarist to selectively interrupt the signal from the guitar to the amplifier.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Inventor: Dennis Armstrong
  • Patent number: 8183455
    Abstract: A removable inline signal interrupter having a male/female combination plug, the male portion of the plug insertable into an electric guitar output receptacle, the female portion of the male/female plug having an internal negative-negative connection and an internal positive-positive connection, the positive-positive connection extending externally from the female portion of the male/female plug, and having an inline minimum volume dial and spring loaded on/off switch incorporated into the circuitry, the female portion of the male/female plug serving as a receptacle for the insertion of a male plug from the amplifier, the spring-loaded on/off lever switch allowing the guitarist to selectively interrupt the signal from the guitar to the amplifier.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: May 22, 2012
    Inventor: Dennis Armstrong
  • Publication number: 20080178727
    Abstract: A removable inline signal interrupter having a male/female combination plug, the male portion of the plug insertable into an electric guitar output receptacle, the female portion of the male/female plug having an internal negative-negative connection and an internal positive-positive connection, the positive-positive connection extending externally from the female portion of the male/female plug, and having an inline minimum volume dial and spring loaded on/off switch incorporated into the circuitry, the female portion of the male/female plug serving as a receptacle for the insertion of a male plug from the amplifier, the spring-loaded on/off lever switch allowing the guitarist to selectively interrupt the signal from the guitar to the amplifier.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 31, 2008
    Inventor: Dennis Armstrong