Back to results
US 5,468,923 AGranted
Molded muffler
AssigneeKleyn Die Engravers, Inc.
InventorHendrik Kleyn
Life of this patent
Estimating the term…
Abstract
A polymeric muffler including two halves each with baffle walls and gas flow openings integrally molded therein. The gas flow openings do not intersect with the mating edges of the baffle walls. The muffler halves are joined along the mating edges of the baffle walls and the outer walls of the two muffler halves. In a preferred embodiment, the muffler includes a filter detachably mounted on the muffler for converting exhaust gases into less toxic products. The gas flow openings are positioned to force all exhaust gas to pass through the filter.
Claims15
A muffler comprising:
- an assembly of two polymeric muffler halves, said muffler halves each including an outer wall defining an interior and an exterior of said muffler, and a plurality of integral baffle walls disposed within said interior of said muffler, wherein said interior of said muffler is divided into a plurality of chambers, said outer walls and said baffle walls each including mating edges, said muffler halves being joined along said mating edges of said outer walls and said baffle walls;
- one input pipe and one output pipe each disposed on and extending through said outer wall of said muffler, wherein said interior of said muffler is in communication with said exterior of said muffler;
- and
- a plurality of gas flow openings disposed within said baffle walls, wherein said plurality of chambers are in communication with each other and said input and output pipes, said gas flow openings disposed such that they do not intersect said mating edges of said muffler halves.
1 more element
A muffler of the type used with internal combustion engines, said muffler comprising:
- first and second muffler halves, each a one-piece construction of polymeric material, each including a cup-shaped outer wall and a plurality of baffles therein, said baffles defining a plurality of chambers, the outer wall and baffles of each half being aligned and mating with the outer wall and baffles, respectively, of the other half;
- said baffles of at least one of said muffler halves defining passageways to permit gas flow between said chambers, each of said passageways being defined entirely by one of said baffle walls in one of said halves;
- and
- bonding means for bonding said mating outer walls and baffles of said two halves together.
1 more element
A muffler comprising:
- an assembly of two polymeric muffler halves, said muffler halves each comprised of an outer wall including a mating edge, a plurality of integral baffle walls including mating edges, and a plurality of gas flow openings;
- said muffler halves being joined along said mating edges of said outer walls and said baffle walls;
- said baffle walls being comprised of longitudinal walls which extend longitudinally along said muffler halves and lateral walls which extend laterally along said muffler halves, whereby said longitudinal and said lateral walls intersect to define a plurality of chambers;
- said gas flow openings defined within said baffle walls wherein said plurality of chambers are in communication with each other;
- said gas flow openings further disposed such that they do not intersect said mating edges of said muffler halves;
- an input pipe extending through said outer wall of said muffler being in communication with said plurality of chambers;
- an output pipe extending through said outer wall of said muffler being in communication with said plurality of chambers;
- said input pipe, said gas flow openings, and said output pipe cooperating to define a gas flow pathway into said muffler, through said plurality of chambers and out of said muffler.
5 more elements
A muffler comprising:
- two adjoined one-piece polymeric muffler halves each comprising an outer wall defining an interior and exterior of said muffler, said outer wall including an input means for allowing exhaust gas to flow from said exterior of said muffler to said interior of said muffler and an output means for allowing exhaust gas to flow from said interior of said muffler to said exterior of said muffler, a plurality of baffles walls defining a plurality of chambers within said muffler, and a plurality of gas flow openings in said plurality of baffle walls providing communication between said plurality of chambers, wherein said outer wall, said baffle walls and said openings cooperate to define a gas flow passageway between said input means and said output means;
- at least one of said muffler halves further including attachment means for detachably receiving a filter canister, said attachment means disposed along said gas flow passageway between said input means and said output means;
- a filter canister detachably mounted on said attachment means;
- and
- a filter media within said filter canister;
- said gas flow openings being arranged to force all gas flowing through said muffler to pass through said filter canister.
3 more elements
A muffler comprising:
- a muffler body having an input pipe for allowing exhaust gas to enter said muffler body and an output pipe to allow exhaust gas to exit from said muffler body;
- attachment means for detachably connecting a filter canister to said muffler body;
- a filter canister detachably connected to said attachment means, said canister defining a first gas port means for allowing gas to pass from said muffler body into said canister and a second gas port means for allowing gas to pass from said canister into said muffler body;
- a filter media within said filter canister;
- baffle means within said muffler body for causing all gas entering said muffler body through said input pipe to pass through said filter canister and exit said muffler body through said output pipe.
2 more elements
Dependencies are inferred from the claim text.