Piston for internal combustion engine

Claim 1

IN AN INTERNAL COMBUSTION ENGINE, INCLUDING: (A) WALL MEANS DEFINING A CYLINDER HAVING A PISTON RECEIVING BORE OPEN AT THE INNER END, SAID CYLINDER HAVING (A) AT LEAST ONE EXHAUST PASSAGE THEREIN COMMUNICATING WITH THE PISTON RECEIVING BORE BY MEANS OF AN EXHAUST PORT, (B) AN INLET PASSAGE COMMUNICATING WITH SAID PISTON RECEIVING BORE BY MEANS OF AN INLET PORT SPACED CLOSER TO THE INNER END OF SAID CYLINDER THAN SAID EXHAUST PORT, (C) AT LEAST ONE BLISTER POSITIONED AT AN ANGLE TO SAID PORTS, (D) AT LEAST ONE TRANSFER PASSAGE IN SAID BLISTER FOR THE FLOW OF FUEL AND OIL INTO THE CYLINDER BORE, THE INNER END OF SAID PASSAGE TERMINATING SHORT OF THE INNER END OF THE CYLINDER; (B) AND A PISTON RECIPROCABLY DISPOSED IN THE PISTON RECEIVING BORE OF THE CYLINDER, SAID PISTON INCLUDING (A) A PISTON HEAD, (B) MEANS FOR OPERABLY CONNECTING SAID PISTON WITH AN ENGINE CONNECTING ROD, (C) AND A GENERALLY CYLINDRICAL SKIRT DEPENDING FROM SAID PISTON HEAD, SAID SKIRT HAVING AT LEAST ONE OPENING THEREIN ADAPTED FOR COMMUNICATION WITH THE TRANSFER PASSAGE WHILE THE PISTON IS WITHIN A PREDETERMINED RANGE OF MOVEMENT IN THE BORE OF THE CYLINDER SO THAT FUEL AND OIL MAY FLOW THROUGH SAID OPENING, ABOUT THE MEANS FOR OPERABLY CONNECTING SAID PISTON WITH AN ENGINE CONNECTING ROD, INTO SAID TRANSFER PASSAGE, AND THENCE INTO THE CYLINDER BORE OUTWARDLY OF THE PISTON, THE MEANS CONNECTING SAID ROD TO SAID PISTON INCLUDING A PAIR OF LATERALLY SPACED BOSSES DEPENDING FROM SAID PISTON HEAD AND A WRIST PIN IN SAID BOSSES WITH ITS ENDS IN SPACED RELATION ALIGNED OPENINGS THEREIN WHICH ARE ALSO BOSSES HAVING ALIGNED OPENINGS THEREIN WHICH ARE ALSO ALIGNED WITH THE OPENINGS IN THE SKIRT, SAID BOSSES BEING SPACED INWARDLY FROM THE PLANE OF INSIDE CONFIGURATION OF THE SKIRT, THE FREE END OF SAID SKIRT HAVING NOTCHES IN PARALLEL ALIGNMENT WITH RESPECTIVE OPENINGS IN SAID SKIRT.