Catalytic muffler with end ports for emptying and filling

Claim 1

A CATALTIC MUFFER FOR AN INTERNAL COMBUSTION ENGINE EXHAUST SYSTEM WHICH COMPRISE: AN ELONGATED CASE HAVING A FRONT WALL AND A REAR WALL; PERFORATE PARTITION MEMBERS IN SAID CASE THAT ARE COEXTENSIVE IN LENGTH WITH THE CASE AND THAT, IN COOPERATION WITH SAID CASE, FRONT WALL AND REAR WALL, DEFINE FIRST, SECOND AND THIRD PARALLEL CHAMBERS EXTENDING THE LENGTH OF THE CASE, THE SECOND CHAMBER BEING DISPOSED BETWEEN THE FIRST AND THIRD CHAMBERS AND COMPRISING A CATALYST CHAMBER SAID PERFORATE PARTITION MEMBERS PERMITTING THE EXHAUST GASES TO PASS INTO AND OUT OF THE CATALYST CHAMBER BUT PRESENTING BARRIERS AGAINST THE PASSAGE OF CATALYST PARTICLES THERETHROUGH; AN EXHAUST GAS INLET OPENING IN SAID FRONT WALL COMMUNICATING WITH SAID FIRST CHAMBER; AN EXHAUST GAS OUTLET OPENING IN SAID REAR WALL COMMUNICATING WITH SAID THIRD CHAMBER; AN ACCESS PORT EXTENDING THROUGH EACH OF SAID END WALLS AND COMMUNICATING WITH SAID CATALYST CHAMBER; A PERFORATED WEB CONNECTED TO ONE OF SAID END WALLS AND EXTEND ING ACROSS THE RESPECTIVE ACCESS PORT; AND A REMOVABLE COVER MEMBER CONNECTED TO EACH OF SAID END WALLS IN COVERING POSITION OVER THE RESPECTIVE ACCESS PORT, WHEREBY WHEN THE COVER MEMBERS ARE REMOVED FROM THE PORTS, PARTICULATE CATALYST MATERIAL CAN BE BLOWN INTO SAID CATALYST CHAMBER THROUGH SAID PORT WITHOUT THE PERFORATED WEB AND EXCESS AIR RELIEVED THROUGH THE PORT WITH THE PERFORATED WEB SO AS TO SUBSTANTIALLY FILL THE CATALYST CHAMBER, THE PERFORATED WEB BLOCKING PASSAGE OF THE PARTICULATE CATALYST THROUGH THE PORT HAVING THE PERFORATED WEB, AND WHEREBY PARTICULATE CATALYST CAN BE BLOWN OUT OF SAID CATALYST CHAMBER BY BLOWING AIR THROUGH THE PORT WITH THE PERFORATED WEB SO AS TO BLOW THE CATALYST OUT OF THE PORT WITHOUT THE WEB SO AS TO SUBSTANTIALLY EMPTY THE CATALYST CHAMBER.