Patents by Inventor John C. Lockhart, Jr.

John C. Lockhart, Jr. 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).

  • Lock means and TV sync for air-to-surface missile
    Patent number: 5022079
    Abstract: 1.
    Type: Grant
    Filed: August 31, 1964
    Date of Patent: June 4, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John C. Lockhart, Jr.
  • Air-surface-missile data link system
    Patent number: 5004185
    Abstract: This invention relates to an aircraft missile communication system comprig means to generate a digital sequence corresponding to command signals, means in the aircraft to mix the digital command sequence with the code sequence and transmit the combination to an object; means to compare the received code sequence with the second digital code sequence and means in said object depended upon the comparing means to express said digital command sequence.
    Type: Grant
    Filed: August 31, 1964
    Date of Patent: April 2, 1991
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John C. Lockhart, Jr., Standish C. Hartman, Bruce R. Meuron, Joseph B. Lyons, Jr.
  • Missile command link with pulse deletion command coding
    Patent number: 3987447
    Abstract: A command data link between an aircraft and a missile having a high invulability to jamming by providing a communications system in which the missile receiver is normally off and is gated on only during a short time during which a signal is supposed to appear, as determined by the missile synchronizer. Coded information is transmitted to the missile by the absence of pulses in a pulse train so that spurious pulses received by the missile cannot result in undesirable missile commands.
    Type: Grant
    Filed: June 21, 1965
    Date of Patent: October 19, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John C. Lockhart, Jr., Standish C. Hartman, Carl F. Mattes, Bruce R. Meuron