Abstract: Apparatus for creating aerodynamic lift to a downhill skier is shown as having a harness adapted to be worn by the skier, a left wing structure is operatively carried by the harness, a right wing structure is operatively carried by the harness, the left wing structure has a first longitudinal axis extending generally transversely of the skier, the right wing structure has a second longitudinal axis extending generally transversely of the skier, the left wing structure is selectively rotatable about the first longitudinal axis, the right wing structure is selectively rotatable about the second longitudinal axis, and the left and right wing structures are respectively rotatable about the first and second axes independently of each other by the skier to respective selected positions, and batten-like members are provided to enhance the airfoil configuration of the wing structures.

Abstract: Apparatus for creating aerodynamic lift to a downhill skier is shown as having a harness adapted to be worn by the skier, a left wing structure is operatively carried by the harness, a right wing structure is operatively carried by the harness, the left wing structure has a first longitudinal axis extending generally transversely of the skier, the right wing structure has a second longitudinal axis extending generally transversely of the skier, the left wing structure is selectively rotatable about the first longitudinal axis, the right wing structure is selectively rotatable about the second longitudinal axis, and the left and right wing structures are respectively rotatable about the first and second axes independently of each other by the skier to respective selected positions.

Abstract: An engine is shown as having a ring-like cylinder with a ring type piston reciprocatingly received therein, connecting rods operatively interconnect the ring piston to a related crankshaft; the combustion chamber means is formed generally by two chamber volumes the first of which is defined by the annular space between the working surface of the ring piston and the juxtaposed cylinder head surface and the second of which is defined by a generally medially or centrally formed chamber of unexpandable volume; the two chamber volumes communicate with each other as by a relatively narrow opening formed generally peripherally about the chamber of unexpandable volume.

Abstract: An internal combustion engine is shown as including an annular or ring type cylinder and reciprocating piston therein, exhaust ports from the cylinder lead to an afterburner section situated generally medially of the annular cylinder; the exhaust gases from the annular cylinder are further burned in the afterburner section, at least one crankshaft is employed for connection as through connecting rods to the reciprocating piston; in one form a single crankshaft is employed and sliding guides are employed for precluding the occurrence of piston slap while in another form two parallel carankshafts are employed with both crankshafts being connected to the same piston; the crankshafts are shown as having large live bearing surfaces journalled in the cooperating portion of the engine housing.

Abstract: An internal combustion engine is shown as including an annular or ring type cylinder and reciprocating piston therein; exhaust ports from the cylinder lead to an afterburner section situated generally medially of the annular cylinder; the exhaust gases from the annular cylinder are further burned in the afterburner section; at least one crankshaft is employed for connection as through connecting rods to the reciprocating piston; in one form a single crankshaft is employed and sliding guides are employed for precluding the occurrence of piston slap while in another form two parallel crankshafts are employed with both crankshafts being connected to the same piston; the crankshafts are shown as having large live bearing surfaces journalled in the cooperating portion of the engine housing.

Abstract: An internal combustion engine includes an annular or ring-type cylinder and piston therein; exhaust ports from the cylinder lead to an afterburner reactor situated generally medially of the annular cylinder; the exhaust gases are further burned within the afterburner section; to further reduce pollutants during the afterburning process, additional air is pumped into the afterburner section as by the ring piston due to its special configuration enabling it to accomplish, for example, triple functions such as: (a) to act as a power transmitting means, (b) to act as a pumping means to supply the engine's combustion chamber with scavenging air and/or an air-fuel mixture, and (c) to act as an air pumping means to supply desired quantities of ambient air into the afterburner section even in timed intervals with a constant predetermined pressure and predetermined quantities in order to thereby maximize the degree of control of the temperature generated in the afterburner and thereby more nearly fully oxidize the unb

Abstract: An internal combustion engine includes an annular or ring-type cylinder and piston therein; exhaust ports from the cylinder lead to an afterburner reactor situated generally medially of the annular cylinder; the exhaust gases are further burned within the afterburner section; to further reduce pollulants during the afterburning process, additional air is pumped into the afterburner section by the ring piston due to its special configuration enabling it to accomplish, for example, triple functions such as: (a) to act as a power transmitting means, (b) to act as a pumping means to supply the engine's combustion chamber with scavenging air and/or an air-fuel mixture, and (c) to act as an air pumping means to supply desired quantities of ambient air into the afterburner section even in timed intervals with a constant predetermined pressure and predetermined quantities in order to thereby maximize the degree of control of the temperature generated in the afterburner and thereby more nearly fully oxidize the unburn