Multi-passage muffler insert for exhaust pipe

Claim 1

A MUFFLER COMPRISING: AN ELONGATED SHELL ADAPTED TO BE POSITIONED LENGTHWISE WITHIN AND EXHAUST PIPE OF AN INTERNAL COMBUSTION ENGINE, SAID SHELL FLARED OUTWARD AT ONE END TO FORM A FUNNEL-LIKE STRUCTURE WHOSE MAXIMUM DIAMETER IS GREATER THAN THAT OF THE MAIN BODY OF THE SHELL BUT LESS THAN THE INTERNAL DIAMETER OF SAID PIPE; A PLURALITY OF LOUVERS IN THE WALL OF SAID SHELL HAVING THEIR EXTERNAL DIVERGING PORTIONS DIRECTED TOWARD THE EXTERIOR OF SAID FUNNEL-LIKE STRUCTURE; SAID SHELL CLOSED AT THE END OPPOSITE FROM SAID STRUCTURE; A PLURALITY OF FIRST LUGS CARRIED BY SAID SHELL AND SPACED THEREAROUND ADJACENT SAID OPPOSITE END; A PLURALITY OF SECOND LUGS CARRIED BY SAID SHELL AND SPACED THEREAROUND INTERMEDIATE SAID LOUVERS AND SAID FUNNEL-LIKE STRUCTURE; SAID FIRST AND SECOND LUGS ACTING TO POSITION SAID SHELL COAXIALLY OF SAID PIPE; AND SAID LOUVERS ACTING TO PERMIT THE GASES RECEIVED WITHIN SAID SHELL THROUGH SAID FUNNEL-LIKE STRUCTURE TO ESCAPE TO THE EXTERIOR OF THE SHELL AGAINST THE GASES MOVING THROUGH SAID PIPE TOWARD SAID FIRST LUGS FROM THE REGION AROUND SAID FUNNEL-LIKE STRUCTURE, THEREBY CREATING TURBULENCE IN THE GASES AROUND THE SHELL TO BREAK UP THE SOUND WAVES IN SAID GASES.