Natural vacuum leak detection noise attenuation device

Abstract

A noise attenuation device for reducing resonance in a natural vacuum leak detector. The device includes a housing, a first connector connected to the housing, and a first fitting connected to the first connector. Also included is a second connector which is connected to the housing on an opposite end of the housing in relation to the first connector, and a second fitting connected to the second connector. A plurality of tubes is disposed within the housing between the first connector and the second connector such that air flows through the first fitting, the first connector, the plurality of tubes, through the second connector and the second fitting. A plurality of flow paths is created by the plurality of tubes, and the plurality of flow paths reduces the turbulence and the pulsation of air flow through the housing, reducing or eliminating resonance in the natural vacuum leak detector.

What is claimed is: 
     
         1 . An apparatus, comprising:
 a noise attenuation device, including:
 a housing; 
 a plurality of tubes disposed with the housing; and 
 a plurality of flow paths created by the plurality of tubes; 
 wherein the flow of air is changed as the air passes through the plurality of flow paths, such that the turbulence and pulsation of the air is reduced. 
   
     
     
         2 . The apparatus of  claim 1 , further comprising:
 a first connector connected to the housing; and   a first fitting connected to the first connector;   wherein air flows through the first fitting, then through the first connector, and into the housing.   
     
     
         3 . The apparatus of  claim 1 , further comprising:
 a second connector connected to the housing; and   a second fitting connected to the second connector;   wherein the air flows through the second connector and then through the second fitting after the air passes through the housing.   
     
     
         4 . A noise attenuation device, comprising:
 a housing;   a plurality of tubes disposed within the housing;   a plurality of flow paths, the plurality of flow paths created by the plurality of tubes;   a first connector connected to the housing;   a second connector connected to the housing, on an opposite end of the housing in relation to the first connector;   wherein air flows through the first connector, the plurality of flow paths in the housing, and exits the second connector, and the flow of air is changed as the air passes through the plurality of flow paths, such that the turbulence and pulsation of the air is reduced.   
     
     
         5 . The noise attenuation device of  claim 4 , further comprising:
 a first fitting connected to the first connector; and   a second fitting connected to the second connector;   wherein the air passes through the first fitting, the first connector, the plurality of flow paths in the housing, the second connector, and the second fitting.   
     
     
         6 . A noise attenuation device for reducing resonance in a natural vacuum leak detector, comprising:
 a housing;   a first connector connected to the housing;   a first fitting connected to the first connector;   a second connector connected to the housing, on an opposite end of the housing in relation to the first connector;   a second fitting connected to the second connector; and   a plurality of tubes disposed within the housing between the first connector and the second connector;   wherein air flows through the first fitting, the first connector, the plurality of tubes, through the second connector and the second fitting.   
     
     
         7 . The noise attenuation device for reducing resonance in a natural vacuum leak detector of  claim 6 , further comprising a plurality of flow paths created by the plurality of tubes, the plurality of flow paths changing the air flow through the housing. 
     
     
         8 . The noise attenuation device for reducing resonance in a natural vacuum leak detector of  claim 7 , wherein the plurality of flow paths reduce the turbulence and the pulsation of air flow through the housing.