Patents Assigned to Convoy Security Company
  • Roll-up door lock
    Patent number: 5063764
    Abstract: A lock is described which is adapted for use in combination with a conventional latching handle assembly mounted on the bottom panel of a roll-up door mounted on a truck or the like. The lock includes a laterally movable dead bolt which, when locked, is in the pivotal path of the latching handle assembly thereby preventing the latching handle assembly from being moved to its unlocked position. A counter is also associated with the lock which visually indicates the number of times that the lock has been actuated.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: November 12, 1991
    Assignee: Convoy Security Company
    Inventors: Lynn F. Amis, Jacob T. Crittenden, Raymond J. Dyer, John P. Glynn, Richard H. Hall, Dave L. Huebner, Brian W. Olsen, Sam C. O'Connor, Charles E. Robideaux, David E. Seeley, Steven J. Sousek, Mark A. Wightman, Ronald E. Wintermute
  • Sequential seal
    Patent number: 5006697
    Abstract: A sequential seal for use with a roll-up door positioned in a truck or van body and which indicates the number of times that the door has been moved from its closed position towards its open position. A sequential counter is mounted in the door and is actuated each time the door is moved from its closed position towards its open position.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: April 9, 1991
    Assignee: Convoy Security Company
    Inventors: Lynn F. Amis, Daniel R. Gee