Abstract: A heat exchanger with a uniquely designed header system which allows tubes carrying independent products to exchange heat with a product in one common shell. Multiple tube sheets provide for tubes carrying different independent products to exchange heat with the product passing through the shell side of the exchanger. The design advantages to this heat exchanger system are threefold, this exchanger design eliminates the need for multiple heat exchangers that perform the same task, it greatly reduces the size and footprint of a traditionally designed multiple heat exchanger systems, which rely on multiple independent heat exchangers to perform the same task, and lastly this new designed heat exchanger reduces the high cost of having to use multiple exchangers to obtain the same results.

Abstract: A generator for fire retardant foam utilizes a foamable liquid in a fire hose terminating in a nozzle. The generator includes a housing having an inner chamber with a first entrance opening and a second exit opening. A moveable screen is disposed within the housing to aid in the generation of the foam. A connector is also employed for fastening the housing to the fire hose nozzle utilizing a plurality of hingable elements connected to the housing and a clamp for fixing the plurality of elements to the exterior of the fire hose.