Patent ID: 6874547

Claim:
A nitrous oxide transfer system for facilitating the transfer of gas from a large supply tank to smaller end-user tanks in a safe and efficient manner comprising, in combination: a housing in a generally rectilinear configuration with a horizontal bottom wall and four vertical side walls including a front wall, a rear wall, an open side wall and a closed side wall, the housing also having a vertical separation wall forming a filling chamber on one side of the vertical separation wall and having a horizontal separation wall on the other side of the vertical separation wall, the horizontal separation wall forming a weighing chamber above and a cooling chamber below; a quantity of brine in the filling chamber with an apertured horizontal plate at about the middle elevation of the filling chamber and with a smaller end-user tank supported on the plate for being filled, the level of brine being sufficient to immerse the lower portion of the smaller end-user tank providing direct fluid-to-tank-wall contact, the smaller end-user tank having an upper end with a fitting and a gage with the size of the smaller end-user tank being sufficient to maintain the upper end above the brine and the housing; an air conditioning system for cooling the brine, the air conditioning system including a compressor unit located in the cooling chamber with an opening in the open side wall adjacent to the compressor unit for repair purposes as may be needed and a louver in the front wall adjacent to the compressor unit for ventilation, the air conditioning system also including a refrigerant coil in the filling chamber beneath the plate and with connecting lines extending through the vertical separation wall whereby the air conditioning system will cool the smaller end-user tank there above during the filling thereof; a scale located in the weighing chamber and supported upon the horizontal separation wall, the scale adapted to weigh the smaller end-user tanks prior to being filled and again after being filled; and a large supply tank of nitrous oxide remotely located from the housing and having an upper end with fittings and a gage and a supply tube connecting the large supply tank with the smaller end-user tank within the housing for the transfer of nitrous oxide from the large supply tank to the smaller end-user tank during operation of the air conditioning system whereby transfer of nitrous oxide gas from the large supply tank to the smaller end-user tanks is accelerated by the cooling of the smaller end-user tanks.