Abstract: People carry electronic devices on their person which have cases to protect electronic devices from falls. People also carry a variety of tools on their persons. Existing cases rarely have integrated tools and when they do the utility of the case and the tool are both reduced. The present invention is a protective case for electronic devices which securely stores tools inside the case. The tools are fully removable from the case. The tools are retained in the case by geometric interference between the tool and the case.

Abstract: A heat exchanger device having a plurality of substantially parallel tubes. Each tube has an outer diameter which is less than or equal to one millimeter and further includes a first end portion and a second end portion. A first manifold forms an inlet for the first fluid and further forms a plurality of first openings, whereby each of the first end portions of the parallel tubes is attached in a sealed manner to the first manifold so that each tube is in fluid communication with a respective one of the first openings. A second manifold spaced from and opposing the first manifold forms an outlet for the first fluid and further forms a plurality of second openings, whereby each of the second end portions of the parallel tubes is attached in a sealed manner to the second manifold so that each tube is in fluid communication with a respective one of the second openings.