Abstract: A fuel conditioning device designed for interposition between an engine's fuel supply line and the engine's fuel combustion zone, which device has a cylindrical body portion, with an input end and an output end, and a flow through passageway in the body portion. The input end is in fluid communication with the fuel supply line, and the output end is in fluid communication with the fuel combustion portion of the engine. Disposed within the body portion is a series of only plastic disks at each end that move the incoming and outgoing fuel in a quasi-sinusoidal pattern, and such movement of fuel is also carried out through a series of cells formed of a pair of plastic spaced and opposed disks with a copper-based disk in intimate contact with a zinc-based disk between each such pair of opposed spaced disks, between the series of only plastic disks.

Abstract: A precisely controllable cut is made in a workpiece by ultrasonic equipment including a horn or other element which is vibrated at ultrasonic frequency along a predetermined axis, and which carries a cutter mounted for vibration with the horn along the axis, with the cutter having a leading cutting edge disposed at an angle of between about 30 degrees and 40 degrees (preferably between about 33 degrees and 37 degrees), with respect to the specified axis of vibration. The cutting edge should desirably be disposed approximately perpendicularly with respect to the surface of the workpiece as the cut is made, the preferred angle with respect thereto being between about 85 degrees and 105 degrees.