Abstract: The invention comprises a high performance segmented baffled shell and tube heat exchanger in which baffles are oriented at angles less than 180.degree. adjacent one another.

Abstract: The invention relates to improved sealing means for shell and tube heat exchangers which means use only components which are external to the heat exchanger shell to mechanically compress a series of rubber type gaskets and incompressible tube sheets to thereby seal the tube to tube sheet joints and the tube sheet to shell joints in such a manner as to precisely control the degree of compression of the rubber type gaskets and eliminate the need for the retightening of bolts by the use of confining elements on the outer periphery of said gaskets.

Abstract: A belt-drive assembly for use on air-moving systems in corrosive atmospheres comprising a larger non-metallic driven sheave in conjunction with a smaller metallic driver sheave wherein the metallic sheave may be located in a vented enclosure is disclosed. This arrangement prevents corrosion of the drive system and prolongs belt life.

Abstract: This invention relates to a process for the application of organic materials, such as powders, to hot dip or electroplated galvanized metal which provides a finished material with a higher level of corrosion resistance than that obtained from organic coatings on mild or black steel. Because of the natural corrosion protection properties of the zinc cladding of galvanized metal, no additional passivation of the substrate is necessary as is required with existing processes on mild or black steel. Also, the invention relates to the hot dip or electroplated galvanized metal which has been pretreated by the process of this invention prior to application of an organic powder coating. Hot dip or electroplated galvanized metal treated by this process leads to a uniform coating which is virtually impervious to acid, basic and salt solutions, and which will not scratch or flake off on impact.

Abstract: Heat reclaiming method and apparatus for use with a vapor compression refrigeration circuit, a heat transfer fluid, and a heat storage facility. The heat reclaiming apparatus comprises a heat exchanger connected to a compressor and a condenser of the refrigeration circuit for receiving refrigerant vapor from the compressor and discharging refrigerant to the condenser, wherein refrigerant vapors pass in heat transfer relation with the heat transfer fluid to heat the fluid and cool the vapors. The heat exchanger is further connected to a source of the heat transfer fluid for receiving fluid therefrom; and still further connected to the heat storage facility for discharging the heat transfer fluid thereto.

Abstract: Apparatus for and a method of operating a high performance shell and tube type heat exchanger utilizing tubes having integral internal fins. A specific tube circuit configuration is selected to limit the temperature drop of the refrigerant within the tube to a preselected range as the refrigerant flows through the circuit.