Patents Assigned to Maritec Corporation
  • Variable inlet hydrojet boat drive
    Patent number: 4449944
    Abstract: A hydrojet boat drive for efficient transition from low to high speed boat operation, characterized by a conventional drive pump unit and prime mover installation in the "slot" of a "V" bottomed hull and featuring a low drag ram-scoop with a blow-in door or panel which is responsive to imbalance between internal flow pressure and external slipstream pressure, whereby intake volume is augmented for low speed operation and ram pressures contained for high speed operation.
    Type: Grant
    Filed: January 2, 1979
    Date of Patent: May 22, 1984
    Assignee: Maritec Corporation
    Inventors: Kenneth R. Baker, Robert T. De Vault
  • Non jamming reversible jet nozzle
    Patent number: 4315749
    Abstract: A reversible hydrojet boat drive for the substantially nonturbulent nozzling of water during the forward mode, and effective non jamming seal function during the reverse mode, and comprised of an exact nozzle continuation of the exit passage of the pump, particularly the top wall thereof, and the compatible eccentric relation of the surrounding seals of the reverse gate centered below the axis of gate rotation, thereby to avoid jamming and to eleviate strain on the control system therefor.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: February 16, 1982
    Assignee: Maritec Corporation
    Inventors: Kenneth R. Baker, Robert T. DeVault
  • Marine engine noise suppressor
    Patent number: 4184566
    Abstract: A noise suppressor for internal combustion engine exhaust, adapted for marine use wherein water coolant is discharged into the chamber of a single-walled riser and partially vaporized by the exhaust gases directed into the dome thereof for downward redirection and discharge from the lower portion of the riser chamber through a muffler element, and preferably through the hull chest and/or cover of a jet pump drive acting as the final noise barrier to atmosphere.
    Type: Grant
    Filed: May 10, 1978
    Date of Patent: January 22, 1980
    Assignee: Maritec Corporation
    Inventors: Kenneth R. Baker, Robert T. DeVault