Ray:
What are the eight patents and what countries patented the engine or did they just patent a concept, and for whom?
I don't think there are eight patents: IMO, I believe 8 countries (so far) have accepted one patent.
Cited Patents: US 4022167; US 4250843; US 4287858
question) What are these US patents, who do they belong to, and were they existing before Steve Manthey and Advanced Engine Technology applied for patents?
These are prior art patents. I have no idea how they affect the novelty of AENG's engine. You can do your own search here for your other questions
patents.cnidr.org
but here are the abstracts:
I will leave it to the mechanical engineers to debate the similarity of lack thereof to the abstract for AENG's.
However, wouldn't it have been simpler for the company to have DISCLOSEd this information, rather than for investors to dig it out. I'm sure engine manufacturers have far better resources than us to have the whole file sitting on their desk by morning and they always have.
USPTO 4022167
A pair of cylindrical rotors are mounted for rotation within a stator and each rotor including a plurality of cylindrical bores annularly around the axis thereof and parallel to the stator bore. Pistons reciprocate within these bores and connecting rods or links of the pistons engage within the profile of a pair of annular cams secured to the stator at opposite ends thereof so that as the rotors rotate, the pistons reciprocate due to the cam profile. By providing a set of pistons and cylinders, on each side of a central common cylinder head at each end, a pair of rotors and a pair of cams one at each end of the stator, balance is achieved. A common combustion chamber is provided in the cylinder head for the pistons on the opposite sides of the cylinder head. The cycle can be of a diesel type with a fuel injection or of the gasoline/air mixture type with conventional spark plugs. Of importance, is the ease with which the expansion ratio
can be made greater than the compression ratio thus utilizing more of the energy normally expelled and wasted in exhaust gases with the conventional cycles. Furthermore, timing is easily adjusted by rotating the cams and the compression ratio can be varied by moving the two cams further apart or closer together.
USPTO 4250843
An engine internal-combustion engine having cylinders secured symmetrically spaced on a wheel rotor equipped with a main shaft and with their piston rods extending outwardly against a substantially saddle-shaped cam. The operation of the engine will make the reciprocating piston rods confront the undulating top surface of the cam and therefore revolve the internal-combustion cylinders themselves together with the wheel rotor along the undulating surface. The invention also includes an oil pressure cam receiver to cushion the cam confronting the piston rods and push the pistons to their maximum inward position in the cylinder to achieve a desired compression ratio of the fuel-air mixture in the combustion chamber of the cylinder.
USPTO 4287858
Two piston plates are mounted for rotation and axial reciprocation in the bore of a cylindrical housing, and at right angles to each other. Each plate carries on opposite ends thereof a pair of pistons which reciprocate in spaced bores formed in a pair of rotary cylinder plates located in opposite ends of the housing. Each cylinder plate has an integral shaft projecting therefrom to the exterior of the housing. A plurality of roller cam followers project from opposite sides of the piston plates into a sinusoidally shaped cam track formed in the bore of the housing, so that when fuel is fed into the piston bores and properly ignited, the reciprocation imparted to the piston plates causes the cam followers to roll in the undulating cam track to impart rotation to the cylinder plates and to the shafts which project
therefrom.
For follow on readers, please remember the last three citations are prior art patents and are not AENG's
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