Abstract: A saboted projectile comprises a sub-caliber, spin-stabilized warhead (usually an armor-piercing penetrator) and a full caliber spin-stabilized non-disintegrating sabot capable of being fired by airplanes. The sabot releasably receives the armor-piercing penetrator and is adapted to be mounted on a conventional ammunition cartridge. The sabot includes a novel method of holding the penetrator until firing, tightening a reverse threaded end cap against the aft end of the penetrator during firing and utilizing interior end cap geometry to utilize firing gas pressure to accelerate the penetrator forward in relation to the sabot after leaving the gun barrel. Accuracy is increased by maintaining axial symmetry and releasing the penetrator in substantially the same way each time. There are other novel features.

Abstract: The present invention is a nutating positive displacement device including a nutator with an inverted pendulous, low friction, substantially non sliding vertically elongated double pivoting nutator fulcrum. The fulcrum is one member comprising a bottom base coupled to a central beam coupled to a top nutator support bearing surface. The bottom of the fulcrum comprises a pivoting base pivotally and substantially non slidably mating with a base receptacle defined by a body interior surface. The base is coupled to the fulcrum beam which in turn supports the fulcrum nutator support bearing surface. The nutator support bearing surface pivotally and substantially non slidably mates with a nutator restraint defined by the center bottom surface of the nutator.

Abstract: A positive displacement device capable of performing the typical positive displacement device functions such as pump, generator, flow meter, etc. is presented. The device comprises a housing having interior surfaces defining an inlet and an outlet separated by two generally circular cylindrical fluid flow chambers. A fulcrum is near the center of the device. A positive displacement barrier separates the inlet from the outlet. The barrier which is the only moving part comprises two circular cylindrical pistons coupled by a generally planar plenum barrier. The plenum barrier slides back and forth and teeter totters on a fulcrum so that each piston is always sealing the inlet from the outlet along the inside of its associated cylinder while each piston orbits its cylinder in a different direction. Fluid is caused to move around the piston by the piston and its sealing point.

Abstract: A centrifugal positive displacement device is presented. It is believed that this is the first type device which has the advantages of both a centrifugal pump and a positive displacement pump without any substantial disadvantages. The device comprises a casing similar to that of previous centrifugal casings disposed around an impeller smaller than prior art centrifugal impellers and having cavities in the outer surface thereof. On each side of each cavity is coupled a flexible loop. In operation, as it passes the cam, the flexible loop is filled with incoming fluid which is then compressed out as the cam is approached near the discharge port.

Abstract: A visually and mechanically testable float switch composite is presented. The composite had a casing having one opening into a switch cavity containing a switch having leads potted to the outside. A float is coupled through the opening by coupling means to mechanically actuate the switch. The opening is closed by a bearing and bearing cap surrounded by and sealed by an elastomeric boot. Closing of the cap increases pressure on the fluid in the switch cavity thereby causing the boot to expand like a balloon thereby permitting visual or mechanical testing since the boot remains expanded if there is no leak. In like manner, any submersible component may be made visually and mechanically testable by inserting a cap thereby increasing the internal pressure and monitoring a balloon like expandable boot to determine whether the increase in pressure is maintained.

Abstract: Hydrojet drilling means and method are presented. The method varies the angle and direction from which fluid contacts the material to be cut. The variation in angle and direction also causes the fluid to be applied to selected points and then repeatedly reapplied from different angles and directions getting the advantages of pulsed hydrojet cutting. As a result, 10,000 psi fluid streams cut as well in certain strata as prior art 50,000 psi hydrojets. The means comprises a recyclable fluid supply, means to clean the fluid stream, stringer means which may comprises as little as a cable with the associated fluid flow and power flow lines, a down hole pressure intensification means, and a drill head disposed about an axis formed by the stringer having at least three orifices disposed at equal angles about the axis. In operation, the drill head both rotates and is swung in a complex three dimensional selected series of pendulum-like arcs as the drill head is lowered.