Abstract: An angular cylinder piston combination is disclosed for providing compression and expansion chambers in a large number of items, such as compressors, pumps, internal and external combustion engines, hydrostatic generators, air motors, and the like, in which compression and expansion chambers are formed angularly, inside a cylindrical drum which rotates at substantially uniform velocity "Wo" and connected to the output shaft. The chambers are formed between N outer radial pistons provided by the drum and N inner radial pistons attached to an inner rotor which accelerates and decelerates from zero velocity to a velocity "2Wo" with respect to a stationary housing. The inner rotor comprises a sleeve overlaying the output shaft and rotatably displacable in relationship therewith. A single port per chamber provides intake and exhaust as it comes into juxtaposition with slots, azimouthally cut on the base of a stationary housing.

Abstract: An internal ballistic engine for providing high thermal efficiency comprising a housing, a powering chamber, a ballistic piston, not directly engaged with the output shaft in the state of motion of the piston, primarily depending on its mass moment of inertia and the internal forces provided by the powering chamber, this piston is disposed in, and movable in the powering chamber, for accumulating a substantial portion of the internal energy in the powering chamber as kinetic energy in conjunction with its mass moment of inertia, such transfer of energy causing the temperature and pressure in the powering chamber to be drastically reduced, therefore lowering the rate of loss of heat to the walls; a second chamber, in tandem with the powering chamber, so that the second chamber is being compressed as the powering chamber is being expanded, whereby the kinetic energy accumulated on the ballistic piston is being converted into potential energy temporarily stored in the second chamber; means of interaction between

Abstract: A closure and protector for covering an upper end of a conventional soft pack cigarette package is disclosed having a pair of parallel, spaced, U-shaped members with orthogonally extending upper portions forming a framework. A stationary cover member is fixed to the upper portions of the framework and extends over a major portion of the top surface of the cigarette package. A smaller lid portion is hinged to the stationary cover portion and includes a catch means engageable with the frame to maintain the lid portion in a closed position. A lid biasing means is included for biasing the lid portion toward an open position. A book-match retaining means is pivotally attached to an exposed portion of the frame in an aperture in the stationary cover member.