Patent Application
20210047951
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The disclosure and prior art relates to mufflers and more particularly pertains to a new muffler for reducing noise and pollution from small gas engines such as those on landscaping tools.
An embodiment of the disclosure meets the needs presented above by generally comprising an outer housing being cylindrical and having an outer top side, an outer bottom side, and an outer sidewall extending therebetween defining an outer housing cavity. The outer bottom side has a central neck extension. A principal aperture extends through the neck extension into the outer housing cavity. The neck extension is selectively engageable with an exhaust of a small gas engine. The outer top side has a plurality of vent apertures extending through to the outer housing cavity. An intake extension tube is coupled to the outer housing. The intake extension tube has an intake sidewall and an intake top side. The intake sidewall is coupled to the outer bottom side within the outer housing cavity around the principal aperture and an intake top side. The intake extension tube has a plurality of intake apertures extending through the intake sidewall and the intake top side. A medial tube is coupled to the outer housing. The medial tube has a medial sidewall and a medial top side defining a medial cavity surrounding the intake extension tube. The medial sidewall is coupled to the outer bottom side within the outer housing cavity around the intake extension tube. The medial tube has a plurality of medial apertures extending through the medial sidewall and the medial top side. A first filtering medium is coupled within the medial cavity and filters pollutants passing therethrough. A second filtering medium is coupled within the outer housing cavity outside of the medial tube and dampens sound waves passing through the apparatus from the exhaust.
There has thus been outlined, rather broadly, the more important features of the disclosure in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the disclosure that will be described hereinafter and which will form the subject matter of the claims appended hereto.
The objects of the disclosure, along with the various features of novelty which characterize the disclosure, are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
With reference now to the drawings, and in particular to
As best illustrated in
In use, the apparatus 10 is engaged with the exhaust of a small gas engine, such as a weedwhacker, lawnmower, or other landscaping tool. The first filtering medium 52 filters pollutants and the second filtering medium 54 dampens the sound waves passing through the apparatus 10 to minimize noise from the engine.
With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.
Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements.
