Patents by Inventor David M. Blackmore

David M. Blackmore 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).

  • Dual lost motion mechanism for an aircraft door
    Patent number: 4180943
    Abstract: A pair of four-bar linkages employing lost motion incorporated into an aircraft door construction which simultaneously are operable by a main door handle so that the output crank of each linkage has a dwell which is sequenced such that the operation of the associated latches and door hinges are properly timed and sequenced for opening and closing of the door.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: January 1, 1980
    Assignee: McDonnell Douglas Corporation
    Inventors: Hugh D. Smith, David M. Blackmore