Rotating internal combustion engine

Claim 1

I am requesting that claim 1 be cancelled and amended as follows: a rotary internal combustion engine comprising a housing means defining a cylindrical chamber with open ends disposed within the housing, means defining an inner cylinder concentrically positioned within said chamber with its ends protruding beyond the open ends of said chamber to be supported by the housing, thus forming an annular working channel, two centrally bored toothed disks journalled on said inner cylinder and positioned to cover the open ends of said cylindrical chamber for rotation about the chamber axis, two pairs of diametrically opposed vane-type pistons, sector shaped to fit in said annular working channel, each pair fixed to one of said disks so that the pistons intermesh but each pair is free to rotate about the chamber axis independently through an angle with relation to the other and in cooperative relation with the wall of the channel, means for permitting one-way rotation of said disks, control gearing for causing said disks to rotate and stand alternately and in the meantime for causing both disks to rotate simultaneously, thus effecting the replacement of rotating and stationary piston pairs, in such manner that the four spaces confined between said pistons are alternately expanded and contracted so that a four-stroke cycle mode of operation is obtained, said control gearing comprising a power output shaft journalled in said housing outside of said cylindrical chamber and parallel to the chamber axis, two sectional gears mounted on said power output shaft in opposite relation to one another, each sectional gear engaging a respective one of said toothed disks so that the alternative rotation of saId disks as induced by the expansion force impels the continuous rotation of the power output shaft, means for introducing a fuel-air mixture into said chamber, means for igniting it, and means for exhausting the spent gases, an intake port on the circumference of the chamber at a point between the faces of two adjacent pistons in their closest approach, an ignition device recess between the faces of the diametrically opposite piston pair, an exhaust port at a point adjacent the position of the stationary piston of said first piston pair, which piston acts as a seal in this position between the exhaust port and the intake port.