Patents by Inventor R. Craig Kauffman

R. Craig Kauffman 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).

  • Keyboard mounting mechanism
    Patent number: 6135404
    Abstract: A keyboard supporting mechanism employs a parallelogram linkage secured to a mounting member by a single pivot connection for supporting the whole of the linkage and a keyboard support for vertical swinging movement relative to a base, and a locking mechanism for retaining the keyboard support in a desired vertical position, which includes cooperating locking surfaces carried by the linkage and mounting member.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: October 24, 2000
    Assignee: Weber Knapp Company
    Inventors: Michael G. Wisniewski, Carl H. Little, R. Craig Kauffman