Patents by Inventor David Francis Kofflin

David Francis 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).

  • Push-pull type pre-conditioned air adapter
    Patent number: 6116300
    Abstract: A pre-conditioned air adapter chute to connect an aircraft to a pre-conditioned air unit on the ground. The adapter is a type which can be attached to the aircraft by pushing up on the adapter's handles to cause the safety latches to engage the aircraft, and can be removed from the aircraft by pulling down on the handles.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: September 12, 2000
    Inventor: David Francis Kofflin
  • Pre-conditioned air connection ring
    Patent number: 5915654
    Abstract: A pre-conditioned air connection ring designed to adapt the PCA connection port of an Airbus aircraft to the configuration which is standard in the industry. The connection ring includes a plurality of projections and slots which allow a standard pre-conditioned air adapter chute to be fitted onto an Airbus PCA connection port.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: June 29, 1999
    Inventor: David Francis Kofflin