Abstract: A freeze-resistant fluid composition has the capacity to deform in response to continuously applied pressure and has the ability to maintain its shape and position in the absence of continuously applied pressure. The composition contains a freeze point depressant effective to make the composition resistant to freezing as measured by a penetrometer measurement of at least 13 millimeters at 25° F. (−4° C.). In another embodiment, the composition comprises a fluid mixture of a relatively saturated oil, a relatively unsaturated oil, a block copolymer, and a freeze point depressant. In another embodiment, the composition comprises a fluid mixture of 20%-70% of a relatively saturated oil, 20%-70% of a relatively unsaturated oil, and 0.3%/-10% of a block copolymer.

Abstract: A pressure compensating padding device comprising a flexible envelope and a deformable composition within said envelope, wherein said composition deforms in response to continuously applied pressure; but tends to maintain its shape and position in the absence of applied pressure; said composition comprising a fluid formed from a mixture of an oil and a thickener, wherein said composition maintains its fluid characteristic.

Abstract: This heat engine, uses a Stirling cycle design, wherein a cold exchanger section of a cylinder and a hot exchanger section of the same cylinder are attached to an axis in an off-center positioned. The axis is preferably capable of rotation, but in some embodiments may be fixed. When a rotatable axis is used, a liquid acting as a piston moves within a portion of the cylinder against centrifugal force, and is driven by a working gas which is used in the same cylinder. By oscillating the liquid in the cylinder outwardly in the cylinder during a downward, or "power", stroke and inwardly in the cylinder during an upward, or "drag", stroke the center of mass of the liquid in the cylinder provides a greater moment of force during the downward power stroke than during the upward drag stroke. When used with a rotating axis and subjected to heating at a hot exchanger section and to cooling at a cold exchanger section at selected times it produces continuous power producing rotary motion about the axis.