Patents Assigned to Navigation Technology Corporation
  • Underwater release mechanism
    Patent number: 5184328
    Abstract: An underwater acoustic release system includes a buoyed member with an attached line that is released from a preselected underwater location using an acoustic signal that activates a heating element to melt a volume of wax or like meltable substance. The wax expands, pushing a cylinder or like linkage to release the buoy and its attached line so that it rises to the surface identifying the location for a survey vessel.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: February 2, 1993
    Assignee: Navigation Technology Corporation
    Inventor: Alex Dumestre, III
  • Battery powdered acoustic transponder for use in underwater environment
    Patent number: 5175708
    Abstract: An acoustic transponder device includes waterproof housing that accepts a battery pack with a water displacing connection placing the housing and battery pack in communication. The housing carries an electronics package. Both the housing and battery pack can be disposable components, and can be sealed upon manufacture to prevent water ingress.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: December 29, 1992
    Assignee: Navigation Technology Corporation
    Inventor: Alex Dumestre, III