Method of fabricating an insulated leaching chamber and an insulated leaching chamber

Abstract

An insulated leaching chamber and a method of fabricating the same from a block of expanded polystyrene. The insulated leaching chamber includes a body of rigid air-permeable insulating material, having at least one arch centrally positioned between opposed outwardly projecting terminus. The at least one arch has an convex upper surface, and a concave lower surface. The use of the insulated leaching chamber reduces freezing and promotes increased biological activity.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:  
     
         1 . An insulated leaching chamber, comprising: 
 a body of rigid air-permeable insulating material, having at least one arch centrally positioned between opposed outwardly projecting terminus, the at least one arch having an convex upper surface, and a concave,lower surface.    
     
     
         2 . The insulated leaching chamber as defined in  claim 1 , wherein the at least one arch and the opposed outwardly projecting terminus are of substantially equal thickness.  
     
     
         3 . The insulated leaching chamber as defined in  claim 1 , wherein the air-permeable insulating material is expanded polystyrene.  
     
     
         4 . The insulated leaching chamber as defined in  claim 1 , wherein the arched body is nestable with a series of other arched bodies, thereby facilitating transport-and storage.  
     
     
         5 . The insulated leaching chamber as defined in  claim 1 , wherein there are several arches centrally positioned between the opposed outwardly projecting terminus.  
     
     
         6 . A method of fabricating an insulated leaching chamber, comprising the steps of: 
 providing a block of rigid air-permeable insulating material having a first side and a second side;    passing a rack of wires through the block from the first side to the second side, the movement of the wires including: 
 an initial substantially linear movement upon the rack of wires entering from the first side to form a first outwardly projecting terminus;  
 at least one intermediate arcuate movement to form at least one arch;  
 a final substantially linear movement as the rack of wires exits from the second side to form a second outwardly projecting terminus.  
   
     
     
         7 . The method as defined in  claim 6 , the wires being parallel and spaced equidistant apart.  
     
     
         8 . The method as defined in  claim 6 , the rigid air-permeable insulating material being expanded polystyrene.  
     
     
         9 . The method as defined in  claim 6 , there being several intermediate arcuate movements to form several arches.