Abstract: In an engine, blow-by is substantially eliminated and friction is significantly reduced using one or more combinations of non-metallic rings. By substantially eliminating blow-by and by reducing friction, certain engine parameters may be changed. In addition, by substantially eliminating blow-by and by reducing friction, pollution may be reduced, fuel economy may be increased and power may be increased.

Abstract: Basketball training systems and methods are disclosed herein. In one embodiment, a basketball training apparatus includes a first rim and a second rim. The first rim has a center and the second rim has a center. The first rim rotates about its center and the second rim revolves about the center of the first rim.

Abstract: Basketball training systems and methods are disclosed herein. In one embodiment, a basketball training apparatus includes a first rim and a second rim. The first rim has a center and the second rim has a center. The first rim rotates about its center and the second rim revolves about the center of the first rim.

Abstract: Basketball training systems and methods are disclosed herein. In one embodiment, a basketball training apparatus (200) includes a first rim (210) and a second rim (220). The first rim (210) has a center (230) and the second rim (220) has a center (240). The first rim (210) rotates about its center (230) and the second rim (220) revolves about the center (230) of the first rim (210).

Abstract: An internal combustion engine is disclosed that includes a piston construction having a compression ring sealing arrangement that prevents penetration of gases thereby, which gases normally produce pollution and inefficiency in gasoline consumption. The essential elimination of combustion gases and oil vapors from leaking through the compression rings effectively eliminates objectionable emissions that result in pollution and enables the vehicle in which the present invention is utilized to substantially increase its gasoline consumption efficiency; and in addition an engine incorporating the invention maintains its power output even while substantially increasing gasoline consumption efficiency.

Abstract: Basketball apparatus that includes a support member, a backboard mounted on the support member, and a hoop mounted on the backboard. The backboard is mounted on the support member for rotation with respect thereto, wherein the backboard is locatable in selected angular positions with respect to a predetermined location that is disposed remote from the support member and the backboard mounted thereon.A detecting device is mounted at the location remote from the support member for detecting the number of shots taken by a player and is also responsive to a device for indicating successful shots to the hoop, wherein the proficiency of a player in shooting the ball through the hoop is accurately calculated and recorded.