Patents by Inventor Larry O. Aulick

Larry O. Aulick 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).

  • Compliant doctor blade
    Patent number: 5085171
    Abstract: A doctor blade (1) has an outer metal surface (15) on a grit layer with flexible backing. The blade is pushed by foam (21) or, alternately by inherent resilience, onto a developer roller (7). The compliance reduces toner variations which result from surface variations of the blade and the roller.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: February 4, 1992
    Assignee: Lexmark International, Inc.
    Inventors: Larry O. Aulick, Donald W. Stafford, Ajay K. Suthar
  • Method of making coinjection molded daisywheel printhead
    Patent number: 4842795
    Abstract: A printhead is formed by injecting unfilled nylon by injection unit 1 and mineral filled nylon by injection unit 3. The filling adds impact resistance for printing, while the unfilled nylon is particularly resistant to flexural fatigue near the hub of the printwheel. Unit 1 is operated first to form an outer layer, with quantity limited so that the outer layer comes to about the middle of the arms of printheads. Unit 3 is then operated to form a core and to be the only material forming the character elements. The resulting printhead is durable and is capable of use at greater deflection than the same printhead made of only the impact resistant material.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: June 27, 1989
    Assignee: Internal Business Machines Corporation
    Inventors: Larry O. Aulick, Charles L. DeCoste Jr.