Synchronous Rotation Gapless Piston Rings

A piston ring, comprising:

• a non-continuous circular band of material having a first end and second end, a width, and a depth, where
• the width is defined as a distance between an inner circumference of the ring and outer circumference of the ring, and
• the depth is defined as a distance between a top surface of the ring and a bottom surface of the ring,
• the first end forming a first extension and a second extension,
• the first extension extending longer at the first end than the second extension, the first extension having a first width extending from one of the inner circumference or the outer circumference to a first position between the inner circumference and the outer circumference, and also having a first depth extending from the top surface of the ring to a second position between the top surface and the bottom surface, and
• the second extension having a second depth extending from the bottom surface of the ring to the second position, and
• the second end forming a third extension and a fourth extension,
• the third extension extending longer at the second end than the fourth extension, the third extension having a second width extending from an opposing circumference than that from which the first width is measured, where the second width and the first width equal the width of the ring, and also having a third depth extending from the top surface of the ring to the second position, and
• the fourth extension having a second depth extending from the bottom surface of the ring to the second position,
• where the first extension engages the fourth extension and the second extension engages the third extension, thereby sealing off any gaps from extending completely through the piston ring.