Mufflers

Claim 2

In an improved muffler, toroidal chamber means, inlet means opening into one portion of the toroidal chamber means, outlet means opening into a second portion of the toroidal chamber means spaced around said toroidal chamber means from said one portion, a pair of partitions dividing the toroidal chamber means into an inlet chamber, an outlet chamber, and two side chambers between the inlet chamber and the outlet chamber, one of the partitions having inlets to the side chambers and the other partition having outlets to the outlet chamber, and baffle means in the side chambers between the inlets and the outlets.

Claim 3

In an improved muffler, toroidal chamber means, inlet means opening into one portion of the toroidal chamber means, outlet means opening into a second portion of the toroidal chamber means spaced around said toroidal chamber means from said one portion, a pair of partitions dividing the toroidal chamber means into an inlet chamber, an outlet chamber, and two side chambers between the inlet chamber and the outlet chamber, one of the partitions having inlets to the side chambers and the other partition having outlets to the outlet chamber, and baffle means in the side chambers between the inlets and the outlets.

Claim 4

In an improved muffler, toroidal chamber means, inlet means opening into one portion of the toroidal chamber means, outlet means opening into a second portion of the toroidal chamber means spaced around said toroidal chamber means from said one portion, a pair of partitions dividing the toroidal chamber means into an inlet chamber, an outlet chamber, and two side chambers between the inlet chamber and the outlet chamber, one of the partitions having inlets to the side chambers and the other partition having outlets to the outlet chamber, and baffle means in the side chambers between the inlets and the outlets.

Claim 5

The improved muffler of claim 1 including scrubbing means positioned in the inlet chamber.

Claim 6

The improved muffler of claim 2 wherein the scrubbing means comprises perforated plate means positioned obliquely to the gases coming through the inlet means.

Claim 7

The improved muffler of claim 3 wherein the perforated plate means includes a pair of perforated plates both oblique to the gases and positioned between the inlet means and the inlets to the side chambers.

Claim 8

The improved muffler of claim 4 wHerein each of the baffle means comprises a tube having perforations therein and extending from the inlet to the outlet and having a plug between the ends thereof.

Claim 9

The improved muffler of claim 4 wherein each of the baffle means comprises perforated tube means leading from the inlet into the side chamber and perforated tube means leading from that side chamber to the outlet thereof.

Claim 10

The improved muffler of claim 6 wherein the inlet means comprises a pair of inlet openings directed obliquely toward the pair of perforated plates in the inlet chamber.

Claim 11

The improved muffler of claim 4 wherein the inlet means comprises a single inlet opening positioned between and directed obliquely toward both of the perforated plates.

Claim 12

The improved muffler of claim 8 including a second pair of perforated plates in the outlet chamber positioned on opposite sides of the outlet means and obliquely relative to the outlet means.

Claim 13

In an improved muffler, an outer cylinder of a predetermined diameter, an inner cylinder of a diameter substantially less than that of the outer cylinder and positioned concentrically in the outer cylinder, top and bottom plates sealed to the cylinders and forming a toroidal chamber therewith, a pair of spaced partition plates joined tangentially to the inner cylinder and joined to the outer cylinder and the top and bottom plates to divide the chamber into an inlet chamber, an outlet chamber, and two side chambers, the partition plates having two pairs of aligned openings, a pair of perforated tubes blocked off at the central portions thereof extending through the pairs of aligned openings, inlet means leading into the inlet chamber, and outlet means leading out of the outlet chamber.

Claim 14

In an improved muffler, an outer cylinder of a predetermined diameter, an inner cylinder of a diameter substantially less than that of the outer cylinder and positioned concentrically in the outer cylinder, top and bottom plates sealed to the cylinders and forming a toroidal chamber therewith, a pair of spaced partition plates joined tangentially to the inner cylinder and joined to the outer cylinder and the top and bottom plates to divide the chamber into an inlet chamber, an outlet chamber, and two side chambers, the partition plates having two pairs of aligned openings, a pair of perforated tubes blocked off at the central portions thereof extending through the pairs of aligned openings, inlet means leading into the inlet chamber, and outlet means leading out of the outlet chamber.

Claim 15

The improved muffler of claim 10 including inlet scrubbing means positioned in the inlet chamber obliquely to the inlet means.

Claim 16

The improved muffler of claim 11 including outlet scrubbing means positioned in the outlet chamber between the tubes and the outlet means.

Claim 17

The improved muffler of claim 12 wherein the inlet serubbing means comprises a pair of perforated plates bracketing the inlet means.