Patents by Inventor William R. Keelen

William R. Keelen 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).

  • Two-shot injection molding
    Patent number: 4460534
    Abstract: The complete, two-color, multiple keybutton array of a keyboard is molded by a two-shot injection molding method which uses a rotating, double female die means selectively cooperating with two male dies. The finished keybutton array is ejected to a carrier which then cooperates with a gathering fixture, which fixture is then movably adjusted to place the keybuttons in position for assembly to the keyboard.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: July 17, 1984
    Assignee: International Business Machines Corporation
    Inventors: Russell W. Boehm, William R. Keelen, Herbert Rees