Manhole construction

Abstract

A manhole assembly comprising a plurality of interconnected longitudinal manhole segments is provided. In an embodiment, the plurality of interconnected longitudinal manhole segments may comprise a first edge comprising a plurality of dowel pins, a second edge comprising a plurality of dowel holes, a curved wall extending between the first edge and the second edge, and a plurality of clip bosses extending periodically along the first edge and the second edge. In another embodiment, the plurality of interconnected longitudinal manhole segments may comprise a plurality of hinges extending periodically along the first edge and the second edge.

1 - 20 . (canceled) 
     
     
         21 . A manhole assembly comprising:
 a plurality of interconnected ring segments, wherein the plurality of interconnected ring segments comprise:
 a large end having a first plurality of external tabs spaced between a first plurality of external rims; and 
 a small end having a plurality of internal tabs spaced between a plurality of internal rims; 
   a manhole base having a second plurality of external tabs spaced between a second plurality of external rims; and   a manhole cover having a third plurality of external tabs spaced between a third plurality of external rims.   
     
     
         22 . The manhole assembly of  claim 21 , wherein a diameter of the small end is less than a diameter of the large end. 
     
     
         23 . The manhole assembly of  claim 21 , wherein the first plurality of external tabs, the second plurality of external tabs, and the third plurality of external tabs extend in a lengthwise direction from an exterior surface of the ring segment, an exterior surface of the manhole base, and an exterior surface of the manhole cover. 
     
     
         24 . The manhole assembly of  claim 21 , wherein the plurality of internal tabs extend in a lengthwise direction from an interior surface of a wall of the ring segment. 
     
     
         25 . The manhole assembly of  claim 21 , comprising at least one internal joint between a small end of a first of the plurality of interconnected ring segments and a small end of a second of the plurality of ring segments. 
     
     
         26 . The manhole assembly of  claim 21 , comprising at least one external joint between a large end of a first of the plurality of ring segments and a large end of a second of the plurality of ring segments. 
     
     
         27 . The manhole assembly of  claim 21 , wherein each of the first plurality of external tabs, the second plurality of external tabs, the third plurality of external tabs, and the plurality of internal tabs comprise angled ends. 
     
     
         28 . The manhole assembly of  claim 21 , wherein each of the first plurality of external rims, the second plurality of external rims, and the third plurality of external rims has a boss shaped to receive a screw. 
     
     
         29 . The manhole assembly of  claim 21 , wherein each of the plurality of internal rims has a boss shaped to receive a screw. 
     
     
         30 . The manhole assembly of  claim 21 , further comprising a gasket between each of the plurality of interconnected ring segments. 
     
     
         31 . A manhole assembly comprising:
 a plurality of interconnected ring segments, wherein the plurality of interconnected ring segments comprise:
 a large end having a first external flange; and 
 a small end having an internal flange; 
   a manhole base having a second external flange; and   a manhole cover having a third external flange.   
     
     
         32 . The manhole assembly of  claim 31 , wherein the internal flange extends inwardly from the small end of the plurality of ring segments. 
     
     
         33 . The manhole assembly of  claim 31 , wherein each of the first external flange, the second external flange, and the third external flange extends outwardly from the large end of the plurality of ring segments, the manhole base, and the manhole cover. 
     
     
         34 . The manhole assembly of  claim 31 , wherein the plurality of interconnected ring segments further comprise a weld element molded into the first external flange and the internal flange. 
     
     
         35 . The manhole assembly of  claim 31 , wherein the manhole base further comprises a weld element molded into the second external flange. 
     
     
         36 . The manhole assembly of  claim 31 , wherein the manhole cover further comprises a weld element molded into the third external flange. 
     
     
         37 . The manhole assembly of  claim 31 , wherein each of the internal flange, the first external flange, the second external flange, and the third external flange further comprises a groove configured to hold a weld element. 
     
     
         38 . A manhole assembly, comprising:
 a plurality of interconnected ring segments, wherein each of the plurality of interconnected ring segments comprises:
 a large end having a first plurality of external clip bosses; and 
 a small end having a plurality of internal clip bosses; 
   a manhole base having a second plurality of clip bosses; and   a manhole cover having a third plurality of external clip bosses.   
     
     
         39 . The manhole assembly of  claim 38 , wherein each of the first plurality of external clip bosses, the second plurality of clip bosses, and the third plurality of clip bosses extends parallel to an outer surface of the large end, an outer surface of the manhole base, and an outer surface of the manhole cover. 
     
     
         40 . The manhole assembly of  claim 38 , wherein each of the plurality of internal clip bosses extends parallel to an inner surface of the small end. 
     
     
         41 . The manhole assembly of  claim 38 , further comprising at least one external joint between a large end of a first of the plurality of interconnected ring segments and a large end of a second of the plurality of interconnected ring segments. 
     
     
         42 . The manhole assembly of  claim 38 , further comprising at least one internal joint between a small end of a first of the plurality of interconnected ring segments and a small end of a second of the plurality of interconnected ring segments. 
     
     
         43 . The manhole assembly of  claim 42 , further comprising one or more clip connecting the external joint. 
     
     
         44 . The manhole assembly of  claim 43 , further comprising one or more clip connecting the internal joint. 
     
     
         45 . The manhole assembly of  claim 38 , further comprising a gasket between each of the plurality of interconnected ring segments.