US4361423A — Combination acoustical muffler and exhaust conver…

Claim 1

Independent Claim 221 words

A combination acoustical muffler and exhaust converter for use with internal combustion engines, comprising: A. an elongated hollow cylinder having an inlet end to receive exhaust gas, and having an outlet end; B. sets of filtering means positioned at a plurality of longitudinally spaced locations within the cylinder for filtering exhaust gas flowing therethrough and for partitioning the cylinder into a number of chambers arranged in series flow relation with one another, said filtering means being arranged and constructed to have a silencing action on the gas flowing through the cylinder without interfering with substantially straight axial gas flow therethrough, and each such set of filtering means comprising (1) a number of screen discs of different size mesh extending across the interior of the cylinder, (2) and the screen discs of each set of filtering means being arranged in a stack in contiguous relation to one another; C. packing material means in one of said chambers for condensing moisture in the exhaust gas and for removing hydrocarbon therefrom, said packing material means being comprised of fibers all disposed longitudinally of the cylinder; D. and means confined between two adjacent sets of screen discs which define a second one of said chambers, for removing carbon monoxide from the exhaust gas, said last named means extending completely across the interior of the cylinder.

Claim 2

Dependent Claim 221 words

A combination acoustical muffler and exhaust converter for use with internal combustion engines, comprising: A. an elongated hollow cylinder having an inlet end to receive exhaust gas, and having an outlet end; B. sets of filtering means positioned at a plurality of longitudinally spaced locations within the cylinder for filtering exhaust gas flowing therethrough and for partitioning the cylinder into a number of chambers arranged in series flow relation with one another, said filtering means being arranged and constructed to have a silencing action on the gas flowing through the cylinder without interfering with substantially straight axial gas flow therethrough, and each such set of filtering means comprising (1) a number of screen discs of different size mesh extending across the interior of the cylinder, (2) and the screen discs of each set of filtering means being arranged in a stack in contiguous relation to one another; C. packing material means in one of said chambers for condensing moisture in the exhaust gas and for removing hydrocarbon therefrom, said packing material means being comprised of fibers all disposed longitudinally of the cylinder; D. and means confined between two adjacent sets of screen discs which define a second one of said chambers, for removing carbon monoxide from the exhaust gas, said last named means extending completely across the interior of the cylinder.

Claim 3

Dependent Claim 51 words

A combination acoustical muffler and exhaust converter as defined in claim 1, comprising a one-way valve at the outlet end of said cylinder, and means lightly biasing said one-way valve to normally closed position, whereby said valve opens only when the exhaust gas at said outlet end has a predetermined pressure.

Claim 4

Dependent Claim 25 words

A combination acoustical muffler and exhaust converter as set forth in claim 1, in which said carbon monoxide removal means comprises a porous ceramic material.

Claim 5

Dependent Claim 90 words

A combination acoustical muffler and exhaust converter as set forth in claim 1, further comprising: E. a pair of permanent bar magnets in a third one of said chambers; F. said third chamber being located nearest to the inlet end of the cylinder; G. and nonmagnetic means mounting said magnets in said third one of said chambers in substantially closely spaced relation transversely of the cylinder, and cooperating with the magnets to define a narrow gas passage coaxial with the cylinder and bounded mainly by opposing surfaces of said magnets.

Claim 6

Dependent Claim 33 words

A combination acoustical muffler and exhaust converter as set forth in claim 4, wherein said nonmagnetic means mounts the magnets in a portion of said third chamber located intermediate substantially unrestricted portions thereof.

Claim 7

Dependent Claim 54 words

A combination acoustical muffler and exhaust converter as set forth in claim 5, further comprising: a second pair of said magnets and mounting means therefor arranged in series flow relation in said third chamber, said second pair of magnets and mounting means being also located axially between substantially unrestricted portions of said third chamber.

Claim 8

Dependent Claim 175 words

A muffler for use with internal combustion engines, comprising: A. an elongated tubular member having an inlet for exhaust gas at one end and an outlet at its other end; B. filtering means positioned at a plurality of longitudinally spaced locations within said member for partitioning the same into four chambers arranged in series flow relation with respect to each other, said filtering means having a silencing action on the exhaust gas; C. means in the first entered chamber defining a narrow gas passage coaxially of said member, a said means comprising a pair of bar magnets having opposing flat faces defining opposite sides of said passage, said magnets being operable to separate particles of ferrous material from exhaust gas flowing through said passage; D. a packing material means in the second entered chamber for condensing moisture out of exhaust gas and for removing carbon therefrom as it passes through the second entered chamber; E. the third entered chamber being substantially unrestricted; F. and a substantially fine porous ceramic material filling the fourth entered chamber.

Claim 9

Dependent Claim 175 words

A muffler for use with internal combustion engines, comprising: A. an elongated tubular member having an inlet for exhaust gas at one end and an outlet at its other end; B. filtering means positioned at a plurality of longitudinally spaced locations within said member for partitioning the same into four chambers arranged in series flow relation with respect to each other, said filtering means having a silencing action on the exhaust gas; C. means in the first entered chamber defining a narrow gas passage coaxially of said member, a said means comprising a pair of bar magnets having opposing flat faces defining opposite sides of said passage, said magnets being operable to separate particles of ferrous material from exhaust gas flowing through said passage; D. a packing material means in the second entered chamber for condensing moisture out of exhaust gas and for removing carbon therefrom as it passes through the second entered chamber; E. the third entered chamber being substantially unrestricted; F. and a substantially fine porous ceramic material filling the fourth entered chamber.

Claim 10

Dependent Claim 52 words

The muffler of claim 7, further characterized by a second narrow gas passage in said first entered chamber, downstream of and coaxial with the first such narrow passage, and defined by means comprising a second pair of said bar magnets located in axially spaced relation to said first designated pair of magnets.

Claim 11

Dependent Claim 37 words

The muffler of claim 8, further including a second such pair of magnets and mounting means therefor in said inlet chamber, in spaced relation to the downstream end thereof and to said first designated prior of magnets.

Claim 12

Dependent Claim 117 words

A muffler for use with internal combustion engines, comprising: A. an elongated tubular member having an inlet at one end and an outlet at its other end; B. means in said member defining an inlet chamber to initially receive exhaust gas entering the muffler; C. means in an upstream portion of said chamber constraining all gas entering the latter to flow through a substantially narrow longitudinally disposed central passage, said means comprising (1) a pair of permanent bar magnets in said chamber with one flat side of each substantially closely opposing one flat side of the other; D. and silencing means mounted within said member at a plurality of longitudinally spaced locations downstream of said inlet chamber.

Claim 13

Dependent Claim 117 words

A muffler for use with internal combustion engines, comprising: A. an elongated tubular member having an inlet at one end and an outlet at its other end; B. means in said member defining an inlet chamber to initially receive exhaust gas entering the muffler; C. means in an upstream portion of said chamber constraining all gas entering the latter to flow through a substantially narrow longitudinally disposed central passage, said means comprising (1) a pair of permanent bar magnets in said chamber with one flat side of each substantially closely opposing one flat side of the other; D. and silencing means mounted within said member at a plurality of longitudinally spaced locations downstream of said inlet chamber.

Claim 14

Dependent Claim 195 words

A combination acoustical muffler and exhaust converter for use with internal combustion engines, comprising: A. an elongated tube having inlet and outlet ends; B. a number of filtering units mounted in the tube at longitudinally spaced locations, said filtering units being constructed and arranged to have a silencing action on the gas flowing through the tube without interfering with substantially straight axial gas flow therethrough; C. packing material means mounted in the tube between two adjacent filtering units, for removing hydrocarbons from the gases flowing through the tube, said packing material means being comprised of fibers all oriented substantially longitudinally of the tube; D. means confined in the inlet end portion of the tube between two adjacent filtering units which are at the upstream side of said packing material means, defining a narrow gas passage which is coaxial with the tube and which has flat opposing walls disposed at opposite sides of the tube axis, through which narrow passage all gases entering the tube are compelled to flow; E. and means extending completely across the interior of the tube near its outlet end for removing carbon monoxide from the exhaust gases passing through the tube.

Claim 15

Dependent Claim 195 words

A combination acoustical muffler and exhaust converter for use with internal combustion engines, comprising: A. an elongated tube having inlet and outlet ends; B. a number of filtering units mounted in the tube at longitudinally spaced locations, said filtering units being constructed and arranged to have a silencing action on the gas flowing through the tube without interfering with substantially straight axial gas flow therethrough; C. packing material means mounted in the tube between two adjacent filtering units, for removing hydrocarbons from the gases flowing through the tube, said packing material means being comprised of fibers all oriented substantially longitudinally of the tube; D. means confined in the inlet end portion of the tube between two adjacent filtering units which are at the upstream side of said packing material means, defining a narrow gas passage which is coaxial with the tube and which has flat opposing walls disposed at opposite sides of the tube axis, through which narrow passage all gases entering the tube are compelled to flow; E. and means extending completely across the interior of the tube near its outlet end for removing carbon monoxide from the exhaust gases passing through the tube.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1985-11-29	1986-05-31	1986-11-30	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1989-11-29	1990-05-31	1990-11-30	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1993-11-29	1994-05-31	1994-11-30	$7700.00	Window Closed / Lapsed

Combination acoustical muffler and exhaust converter

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