Noise arresting system

A noise arresting system includes a landscape maintenance implement that has an internal combustion engine and the internal combustion engine has an exhaust. A resonator has a first end, a second end and a peripheral wall extending therebetween. The first end and the second end each is open and the resonator is substantially hollow. An intake pipe is insertably positioned within the first end. The intake pipe is fluidly coupled to the exhaust to reduce a sound level of the exhaust. An exhaust pipe has a primary end, a secondary end and a flexible section extending between the primary end and the secondary end. The primary end is insertably positioned within the second end. The flexible section is bendable to direct the secondary end away from the resonator at a selected angle.

BACKGROUND OF THE DISCLOSURE

Field of the Disclosure

The disclosure relates to noise arresting devices and more particularly pertains to a new noise arresting device for reducing a noise level of a landscape maintenance implement.

SUMMARY OF THE DISCLOSURE

An embodiment of the disclosure meets the needs presented above by generally comprising a landscape maintenance implement that has an internal combustion engine and the internal combustion engine has an exhaust. A resonator has a first end, a second end and a peripheral wall extending therebetween. The first end and the second end each is open and the resonator is substantially hollow. An intake pipe is insertably positioned within the first end. The intake pipe is fluidly coupled to the exhaust to reduce a sound level of the exhaust. An exhaust pipe has a primary end, a secondary end and a flexible section extending between the primary end and the secondary end. The primary end is insertably positioned within the second end. The flexible section is bendable to direct the secondary end away from the resonator at a selected angle.

DESCRIPTION OF THE PREFERRED EMBODIMENT

As best illustrated inFIGS. 1 through 3, the noise arresting system10generally comprises a landscape maintenance implement12that has an internal combustion engine14and the internal combustion engine14has an exhaust16. The landscape maintenance implement12may be a leaf blower or the like. The internal combustion engine14may be a two-stroke engine of any conventional design.

A resonator18is provided that has a first end20, a second end22and a peripheral wall23extending therebetween. The first end20and the second end22are each open and the resonator18is substantially hollow. The resonator18has a plurality of dividers24positioned within an interior of the resonator18. The dividers24extend between the second end22and a point closer to the first end20than the second end22. Moreover, the dividers24are spaced apart to define a plurality of intersecting channels26within the interior of the resonator18. The dividers24may comprise a pair of interior dividers28and a pair of exterior dividers30.

The pair of interior dividers28define a central channel32extending between the first end20and the second end22. The pair of exterior dividers30are positioned between the interior dividers28and the peripheral wall23. The exterior dividers30define a pair of interior channels34positioned between one of the interior28and exterior30dividers and a pair of exterior channels36positioned between one of the exterior dividers30and the peripheral wall23.

The interior dividers28each may have a pair of slots38extending therethrough. The slots38are positioned proximate the first end20and the slots38place the central channel32in fluid communication with the interior channels34. Additionally, the slots38define a spark arrestor40in each of the interior dividers28to prevent a spark from the internal combustion engine14from being released from the resonator18. The pair of exterior dividers30may each have a pair of openings42extending therethrough. The openings42place each of the interior channels34in fluid communication with one of the exterior channels36.

An intake pipe44is provided and is positioned within the first end20. Consequently, the intake pipe44is in fluid communication with the intersecting channels26. The intake pipe44is fluidly coupled to the exhaust16to direct combustion gasses46from the internal combustion engine14into the intersecting channels26. A plurality of baffles48are positioned within each of the interior34and exterior30channels. The baffles48disrupt a flow of the combustion gasses46through the interior34and exterior30channels. The interior34and exterior30channels and the baffles48serve to dissipate sound waves generated by the combustion gasses46. The sound waves may be reduced to a sound pressure level between 50 dB and 70 dB.

An exhaust pipe50has a primary end52and a secondary end54. The exhaust pipe50has a flexible section56extending between the primary end52and the secondary end54. The flexible section56may be comprised of a metallic mesh or the like. The primary end52is insertably positioned within the second end22such that the exhaust pipe50is in fluid communication with the intersecting channels26. The flexible section56is bendable such that the secondary end54is directed away from the resonator18at a selected angle. The flexible section56is resistant to bending, but not resilient such that it remains at the selected angle.

In use, the intake pipe44is fluidly coupled to the exhaust16on the internal combustion engine14. The flexible section56is bent to position the secondary end54at the selected angle. As the combustion gasses46pass through the central channel32, the interior channels34and the exterior channels36, the resonator18reduces a sound level of the internal combustion engine14in order to minimize noise pollution of the immediate environment. Additionally, the flexible section56of the exhaust pipe50allows the combustion gasses46to be directed in a selected direction.