Patents by Inventor Michael Griswold

Michael Griswold 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 neck stiffener for stringed musical instruments
    Patent number: 9355619
    Abstract: An adjustable musical instrument neck stiffener includes a beam fabricated by embedding uni-directional material only at the upper portion of the beam, and constrained by braid or bias weave material. In a preferred embodiment, the uni-directional layers are preferably made from carbon fiber tow, cloth, or pultruded carbon fiber and the braid or bias weave material is made of carbon fibers. To reduce weight, the middle section of the beam is preferably hollow. A threaded rod and threaded sleeve provide a way to adjust the neck stiffener beam curvature so that it is straight while under string tension.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 31, 2016
    Assignee: Allred & Associates Inc.
    Inventors: Jimmie B. Allred, III, Michael Griswold
  • ADJUSTABLE NECK STIFFENER FOR STRINGED MUSICAL INSTRUMENTS
    Publication number: 20140298970
    Abstract: An adjustable musical instrument neck stiffener includes a beam fabricated by embedding uni-directional material only at the upper portion of the beam, and constrained by braid or bias weave material. In a preferred embodiment, the uni-directional layers are preferably made from carbon fiber tow, cloth, or pultruded carbon fiber and the braid or bias weave material is made of carbon fibers. To reduce weight, the middle section of the beam is preferably hollow. A threaded rod and threaded sleeve provide a way to adjust the neck stiffener beam curvature so that it is straight while under string tension.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Jimmie B. Allred, III, Michael Griswold