Silencer with outer housing contacting inner conduit to define resonance chambers

Claim 1

A GAS SILENCING DEVICE FOR SILENCING A NOT HAVING A PREDETERMINED FREQUENCY COMPRISING AN ELONGATED HOUSING, A CONDUIT INSIDE THE HOUSING AND EXTENDING SUBSTANTIALLY THE FUEL LENGTH THEREOF, SAID CONDUIT BEING SUBSTANTIALLY LESS IN WIDTH THAN SAID HOUSING, OPPOSITE SIDES OF SAID CONDUIT BEING IN ENGAGEMENT WITH OPPOSITE SIDES OF THE HOUSING TO DRIVE THE HOUSING INTO TWO LONGITUDIANAL SPACES SEPARATED BY SAID CONDUIT, THE FIRST OF SAID SPACES EXTENDING OVER A SUBSTANTIAL PART OF THE LENGTH OF THE HOUSING, SAID CONDUIT HAVING A WALL WITH A PERFORATE PORTION OPENING INTO SAID FIRST SPACE AND SAID FIRST SPACE BEING SUBSTANTIALLY ONE QUARTER THE WAVE LENGTH OF SAID NOT WHEREBY SAID FIRST SPACE ACTS AS A QUARTER WAVE LENGTH TURNING CHAMBER FOR SAID NOTE, THE SIDE OF SAID HOUSING OVER THE SECOND OF SAID SPACES HAVING INWARDLY EXTENDING PORTIONS AT A PLURALITY OF SECTIONS IN ENGAGEMENT WITH ONE SIDE OF SAID CONDUIT TO DIVIDE SAID SECOND SPACE INTO A SERIES OF SEPARATE CHAMBERS, SAID CONDUIT HAVING PERFORATE AREAS OPENING INTO EACH OF SAID SERIES OF SEPARATE CHAMBERS WHEREBY SAID CHAMBERS ACT AS A SERIES OF SPIT CHAMBERS TO SILENCE HIGH FREQUENCIES AND ROUGHNESS IN THE GAS.