Abstract: An improved inspection apparatus includes a control apparatus, a tractor apparatus comprising a tractor and a drive mechanism connected together, the drive mechanism being connected with the control apparatus, a tether apparatus disposed on the tractor and being movable between a deployed position and a retracted position, and a buoy apparatus. The buoy apparatus is connected with the tether apparatus and includes a buoy and a camera apparatus, the buoy in a condition submerged in a fluid applying a buoyant force to the camera apparatus whereby in the deployed position of the tether apparatus the buoy apparatus is in an elevated position situated relatively higher in a vertical direction than in the retracted position of the tether apparatus wherein the buoy apparatus is in another position situated relatively lower in the vertical direction, the camera apparatus being structured to provide a visual output signal to the control apparatus.

Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a metal core PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom of the PCB. A thermally-conductive material abuts the bottom surface of the PCB and the back shell portion. A watertight underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. In one embodiment, a quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.

Abstract: An improved inspection apparatus includes a control apparatus, a tractor apparatus comprising a tractor and a drive mechanism connected together, the drive mechanism being connected with the control apparatus, a tether apparatus disposed on the tractor and being movable between a deployed position and a retracted position, and a buoy apparatus. The buoy apparatus is connected with the tether apparatus and includes a buoy and a camera apparatus, the buoy in a condition submerged in a fluid applying a buoyant force to the camera apparatus whereby in the deployed position of the tether apparatus the buoy apparatus is in an elevated position situated relatively higher in a vertical direction than in the retracted position of the tether apparatus wherein the buoy apparatus is in another position situated relatively lower in the vertical direction, the camera apparatus being structured to provide a visual output signal to the control apparatus.

Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom surface of the PCB. A thermal bridge abuts the bottom surface of the PCB on one side and a heat sink on the other. A thermally conductive potting material fills spaces between the heat sink and the back shell portion. An underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. A quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.

Abstract: A modular light unit for illuminating a hazardous underwater environment includes a housing having a front portion with a light transmissive window and a back shell portion which enclose a layered lighting assembly. The layered lighting assembly includes a PCB with an array of LEDs mounted thereon with the LEDs in thermal communication with a bottom surface of the PCB. A thermal bridge abuts the bottom surface of the PCB on one side and a heat sink on the other. A thermally conductive potting material fills spaces between the heat sink and the back shell portion. An underwater connector provides releasable connection to an electrical cable for providing power to drive the plurality of LEDs. A quick-release mechanical fastener is attached to the housing for releasably attaching the modular light unit to a support structure installed within the hazardous underwater environment.