Patents by Inventor David Steinbuhler

David Steinbuhler 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).

  • Sostenuto rod bracket
    Patent number: 6737567
    Abstract: In a piano that includes an action frame and a sostenuto rod bracket, the sostenuto rod bracket being adapted to accommodate a sostenuto rod, an improvement involving the attachment of the sostenuto rod bracket to the action frame. Increased access to the sostenuto rod bracket can be facilitated simply by detaching the action stack bracket from the action frame.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: May 18, 2004
    Inventor: David Steinbuhler
  • Portable keyboard
    Patent number: 6720492
    Abstract: An arrangement for facilitating the installation of an action in a piano body. The arrangement includes at least one adjusting medium being adapted to facilitate the positioning of the action with respect to a piano body, wherein the at least one adjusting medium is associated solely with the action.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: April 13, 2004
    Inventor: David Steinbuhler
  • Sostenuto rod bracket
    Publication number: 20030131709
    Abstract: In a piano that includes an action frame and a sostenuto rod bracket, the sostenuto rod bracket being adapted to accommodate a sostenuto rod, an improvement involving the attachment of the sostenuto rod bracket to the action frame. Increased access to the sostenuto rod bracket can be facilitated simply by detaching the action stack bracket from the action frame.
    Type: Application
    Filed: August 12, 2002
    Publication date: July 17, 2003
    Inventor: David Steinbuhler
  • Portable keyboard
    Publication number: 20030106412
    Abstract: An arrangement for facilitating the installation of an action in a piano body. The arrangement includes at least one adjusting medium being adapted to facilitate the positioning of the action with respect to a piano body, wherein the at least one adjusting medium is associated solely with the action.
    Type: Application
    Filed: August 12, 2002
    Publication date: June 12, 2003
    Inventor: David Steinbuhler
  • Stiffened key
    Patent number: 5847301
    Abstract: An improved key for keyboard musical instruments, being particularly suited for reduced width keys, provides for greater structural stiffness and torsional rigidity to improve the feel and response of the key. The key comprises a playing end member mounted on top of one end of a bracing member and a key shank mounted on top of the second end of the bracing member, with the free end of the key shank able to engage a capstan mechanism.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: December 8, 1998
    Inventor: David Steinbuhler