Abstract: A fully-integrated flow-control valve assembly for top-filled fuel tanks incorporates both a float valve assembly and a shut-off valve assembly in a single unit that screws into a threaded aperture in the top of the fuel tank. Whereas all other systems having similar function rely on an inlet valve and a level control/vent positioned apart from one another and intercoupled with a bleed line that runs either inside or outside the fuel tank, the device of the present invention directly mounts the two devices together and allows a simple installation. There is no need for a line that couples two remotely positioned units of the prior art flow-control assemblies.

Abstract: There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest from a fluid utilizing the chromatographic separation member.

Abstract: A gas-fired unit heater (10) is provided and includes a burner (20), a heat exchanger tube (18) located to receive a flow of the combustion products from the burner (20), the tube (18) including at least one linear tube run (30) extending along a longitudinal axis (18), and a corrugated baffle (40) received in the tube run (30).

Abstract: There is described a chromatographic separation member including a substrate carrying on at least one surface a thin layer of a chromatographically active capture material. Also described is a chromatographic separation method for separating a component of interest from a fluid utilizing the chromatographic separation member.

Abstract: A customized method and apparatus for the design and manufacture of a prosthesis utilizing optical surface mapping of the patient's residuum while the residuum is under pressure; conventional positioning software followed by other conventional software to produce a three dimensional representation; and utilizing conventional CAD/CAM procedures for further design modification and fabrication of the prosthesis. In the preferred embodiment, uniform and non-uniform elevated air pressures are used to simulate the shape that the residuum will take when the patient is walking. To accomplish this the patient's residuum is inserted into a pressure chamber that can be sealed around the patient's upper leg. Alternatively or in combination with the pressure within the chamber, a rubber sock or band may be used to apply pressure to selected areas of the residuum. Also located within the chamber is the equipment used to optically measure the residuum while it is under pressure.