Patents by Inventor David F. Kofflin

David F. Kofflin 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).

  • Pre-conditioned air adapter
    Patent number: 5927355
    Abstract: A pre-conditioned air adapter for attaching an air access port of an aircraft to a pre-conditioned air unit made of an integral one-piece plastic body, a clamp connected to the body, a hook connected to the clamp, a strengthening ring member secured to a top end of the adapter body, and a gasket secured to the ring member. The ring member may be metal and may be bolted to the top end of the adapter. Further, the hook may have a tip that is angled toward central longitudinal axis of the adapter body.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: July 27, 1999
    Assignee: Kofflin Equipment
    Inventor: David F. Kofflin
  • Pre-conditioned air adapter chute
    Patent number: 5355917
    Abstract: A pre-conditioned air adapter chute for attachment to an aircraft. The chute has a body which is cylindrical at the top and the bottom, handles on either side of the body, a clamp attached to each of the handles, and a hook attached to each of the clamps.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: October 18, 1994
    Inventor: David F. Kofflin