Abstract: A Reduced Boil-off Thermal Conditioning System (“RBTC System”) for transferring liquid natural gas (“LNG”) from a LNG supply tank to a LNG storage tank with reduced boil-off is disclosed. The RBTC System includes the LNG storage tank, a cryogenic fluid tank within the LNG supply tank, and a compressor. The LNG storage tank includes a first and second LNG pipe. The cryogenic fluid tank is configured to store a cryogenic fluid within the cryogenic fluid tank and the first and second LNG pipe are in fluid communication with to the cryogenic fluid tank. The first LNG pipe is in fluid communication with compressor.

Abstract: A refrigerated stainless steel shipping container for use in transporting and holding perishable foods in a refrigerated or frozen condition for offshore oil and gas and marine industries. The shipping container is comprised of an exterior box encasing an interior box enclosing a food refrigeration chamber. Spaced apart exterior and interior walls on the interior box create compartments for cooling material such as dry ice. Cooling material is selectively placed in the cooling compartments to control the temperature in the refrigeration chamber without electricity or other external power source. The cooling compartments are vented to the outside of the cooling container to avoid exposure of the refrigeration chamber to gases produced by dissipating cooling material. The shipping container is skid mounted and has lifting lugs for attachment to lifting slings.

Abstract: A Reduced Boil-off Thermal Conditioning System (“RBTC System”) for transferring liquid natural gas (“LNG”) from a LNG supply tank to a LNG storage tank with reduced boil-off is disclosed. The RBTC System includes the LNG storage tank, a cryogenic fluid tank within the LNG supply tank, and a compressor. The LNG storage tank includes a first and second LNG pipe. The cryogenic fluid tank is configured to store a cryogenic fluid within the cryogenic fluid tank and the first and second LNG pipe are in fluid communication with to the cryogenic fluid tank. The first LNG pipe is in fluid communication with compressor.

Abstract: A refrigerated stainless steel shipping container for use in transporting and holding perishable foods in a refrigerated or frozen condition for offshore oil and gas and marine industries. The shipping container is comprised of an exterior box encasing an interior box enclosing a food refrigeration chamber. Spaced apart exterior and interior walls on the interior box create compartments for cooling material such as dry ice. Cooling material is selectively placed in the cooling compartments to control the temperature in the refrigeration chamber without electricity or other external power source. The cooling compartments are vented to the outside of the cooling container to avoid exposure of the refrigeration chamber to gases produced by dissipating cooling material. The shipping container is skid mounted and has lifting lugs for attachment to lifting slings.

Abstract: A method of visually detecting defects in a printed circuit board comprising preparing a mask with a light blocking pattern corresponding to the desired printed circuit, illuminating the printed circuit board through the mask with the light of a color complimentary to the color of the printed circuit board and with the light blocking pattern in registry with the printed circuit and inspecting the printed circuit board for light reflected from defects in the printed circuit not present in the light blocking pattern on the mask. The defects are readily apparent as bright spots on a dark background.