Liquid heaters and vaporizers inventions 03/07

20070062463 - Fuel-fired dual tank water heater having dual pass condensing type heat exchanger: A fuel-fired commercial water heater has upper and lower communicated tank portions which are separated by a plenum forming a vertically intermediate portion of a dual pass condensing type heat exchanger. A lower portion of the heat exchanger is defined by a series of vertical flue tubes extending through the... Agent: Haynes And Boone, LLP

20070062464 - High efficiency tank type continuous flow and self cleaning water heater: A water heater comprising a closed tank having a water inlet for connection with a water supply, and a hot water outlet connected to the tank interior; a flue pipe extending vertically through the tank and having an upper portion for connection with a vent pipe; a cylinder having a... Agent: Blake D. Frasure

20070062465 - Methods of operating a liquid vaporizer: The present invention is generally directed to a vaporizer with positive liquid shut-off. In one illustrative embodiment, the vaporizer is comprised of a body, a liquid inlet and a carrier gas inlet coupled to the body, a nozzle positioned within the body, the nozzle having at least one opening formed... Agent: Williams, Morgan & Amerson

20070044736 - Hot water dispenser: A hot water dispensing system includes a water tank having a heat source for heating water in the tank. The tank has a cold water inlet and a hot water outlet. An expansion chamber is connected to the water tank and situated above the water tank for receiving heated water... Agent: Locke Liddell & Sapp LLP Attn. Docketing