Abstract: A modular integrated cooling and heating system for effluents and other uses involving mixing tanks connected in series, hot water supply pipes connected to each of the mixing tanks in order to convey to each mixing tank a portion of the hot water effluent from a power plant. Cooling water pipes are connected to each of said mixing tanks in order to deliver cooling water from a river or other source to said mixing tanks whereby hot and cooling water mixes in said first tank with the water mixture being continuously passed into said second tank for mixing with additional cooling water from a cooling water pipe. The number of stages or mixing tanks will vary depending upon the cooling capacity desired.

Abstract: An intravenous feeding device including a hollow feeding needle having a right angle bend at the end removed from the feeding tip. A length of plastic tubing is connected to the remote end of the needle and extends through a post. The post is secured to a strap arranged for securement to the patient. The post and associated strap can be moved with respect to the needle to enable the strap to be positioned in contact with the patient for securement thereto when the feeding end of the needle is disposed centrally within the vein of the patient. A thumb screw is provided in the post to secure the needle in place once the needle is in position. All of the foregoing functions immobilize the needle so it can not be moved or pulled away from its proper position.