Patents by Inventor John Plank

John Plank 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).

  • Split-E mechanism
    Patent number: 4759251
    Abstract: A split-E mechanism is provided for use on a flute having a right-hand steel, a left-hand steel, a first hinge rotatably mounted on the right-hand steel, a first key coupled to the first hinge, a second hinge rotatably mounted on the left-hand steel, and a second key. The split-E mechanism includes an actuator for actuating the second key in response to rotation of the second hand relative to the left-hand steel. The mechanism also includes a bridge device for interconnecting the first and second hinges for rotating the second hinge in response to actuation of the first key to operate the actuator.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: July 26, 1988
    Assignee: United Musical Instruments USA, Inc.
    Inventors: Rocco A. Giglio, John Plank, Frank Willard, Ronald Green
  • Shoe
    Patent number: D1062184
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: February 18, 2025
    Assignee: Under Armour, Inc.
    Inventors: John Humphrey, Kevin Plank, Marcus Cheatham, Ryan Drew