Wind Powered Gas Extractor

Abstract

An exhaust vent pipe terminal end fitting 15, with no moving parts, that utilizes the wind to extract exhaust gases from a vent pipe 10 and to mitigate the reverse flows of exhaust gases within the vent pipe 10 when the wind is at a downward angle to the vent pipe 10 termination. Low pressure areas adjacent to the vent opening are created by providing a truncated cone surface 12 mounted directly below the terminal end of the vent pipe 10 thereby drawing out exhaust gases from the vent pipe 10 while the is wind blowing from any direction.

1 . A wind powered gas extracting fitting for venting gas through a vertical vent pipe having an outside diameter, and a terminal end exposed to the wind, comprising:
 a conical surface substantially following the form of a truncated right circular cone;
 said conical surface having a small top diameter, a large bottom diameter, and a slant angle, wherein;
 said small top diameter is approximately that of said vent pipe's outside diameter, 
 said large bottom diameter is larger than 2.25 times said small top diameter and; 
 said slant angle is between 30 and 60 degrees: 
 
   an attachment means connecting the terminal end of said vent pipe to said small top diameter of said conical surface, wherein said conical surface is supported below said vent pipe's said terminal end, whereby:   
       wind passing over said conical surface, inducing a lowered pressure area adjacent to said terminal end of said vent pipe, creates an extracting force for venting gas from said vent pipe. 
     
     
         2 . The extractor fitting of  claim 1  wherein said slant angle is between 40 and 50 degrees. 
     
     
         3 . The extractor fitting of  claim 1  wherein a second conical surface is mounted, a predetermined distance, directly above said conical surface of  claim 1 . 
     
     
         4 . The extractor fitting of  claim 1  wherein a convex surface, having a support means, is supported, a predetermined distance, directly above said vent pipe, thereby providing additional lowered pressure area for additional extraction force. 
     
     
         5 . A method for using the wind to extract gas from an exhaust vent pipe having an outside diameter and a terminal end exposed to the wind, comprised of:
 providing a truncated right circular cone surface, said cone surface having a small top diameter, a large bottom diameter, and a slant angle, wherein;
 said small top diameter approximately that of said vent pipe terminal end outside diameter, 
 said large bottom diameter larger than 2.25 times said small top diameter and; 
 said slant angle said slant angle is between 30 and 60 degrees: 
   attaching said terminal end of said vent pipe to said small top diameter of said conical surface, such that said conical surface is supported below said vent pipe's said terminal end, whereby:   
       wind passing over said conical surface, inducing a lowered pressure area adjacent to said terminal end of said vent pipe, creates an extracting force for venting gas from said vent pipe. 
     
     
         6 . The method of  claim 5  wherein said slant angle is between 40 and 50 degrees. 
     
     
         7 . The method of  claim 5  wherein a convex surface, having a support means, is supported, a predetermined distance, directly above said vent pipe, thereby providing an additional lowered pressure area for an additional extraction force.