Brown Fintube Company

Other

John R Powell

An airship includes a substantially rigid keel with a balloon suspended from a fore of the keel and a balloon suspended from the aft of the keel. Motor booms extend laterally from the keel between the fore and the aft. Motors with propellers thereon are coupled to the end of each motor boom. The balloons are preferably coupled to the keel through cradles which support portions of the balloon above the keel and restrain the balloons to pivoting motion in a fore and aft pitching direction. A deployment system is disclosed including filing of the balloons within balloon deployment bags on the ground, and then opening the bags at time of launch. The keel and other structural elements can be in the form of a truss, rigid hollow cylindrical tubes, or air beams and stressed skin sheets, or combinations thereof. The airship achieves high altitude controlled flight above the stratosphere.

High altitude two balloon airship

The present invention relates to a heat exchanger tube support for supporting a plurality of heat exchanger tubes in a conduit of a heat exchanger. The heat exchanger tube support includes three identical elements each having a flattened W-shaped configuration defined by a central projection and two diverging leg sections. A channel is defined in the area between each leg section and the projection. The elements are secured together with a leg section of each element being welded to a leg section of each adjacent element and with the projections extending radially outward. The elements enclose an interior area through which a central heat exchanger tube passes. Six outer heat exchage tubes are supported in a radial array on the heat exchanger tube support within each channel. The leg sections of each element extend to the inside wall of the conduit to space the heat exchanger tubes from the inside wall.

Heat exchanger tube support

A closure for a heat exchanger of the shell and tube type in which fluid under high pressure is circulated through one or more tubes mounted in the shell. The pressure of the fluid flowing through the shell is lower than the pressure of the fluid in the tubes. The closure includes a single seal member for sealing between the tube sheet and the shell terminal member and between the tube sheet and the closure member and between the terminal member and the closure member. The tubes are bent in a hairpin shape with a separate closure at each end of the tubes. An opening in the end of the shell allows the tube and tube sheet to be inserted into and removed from the interior of the shell.

Growing community of inventors

Tulsa, OK, United States of America

John R Powell