Patents by Inventor David C. Broman

David C. Broman 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).

  • Automated door locking system for aircraft lavatory
    Patent number: 4994722
    Abstract: A system for automatically locking a lavatory door on an aircraft from a remote location comprises means for activating the system, means for sensing the presence of a person in the lavatory, means for locking the lavatory when it is unoccupied and means for selectively overriding the system to allow entry by authorized personnel.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: February 19, 1991
    Assignee: The Boeing Company
    Inventors: David C. Dolan, Jimmie L. Grimes, David C. Broman, Kwan-Ho Bae