US2014261771A1PendingUtilityA1

Polymer manhole base

40
Individually held — no corporate assignee on recordPriority: Mar 15, 2013Filed: Sep 10, 2013Published: Sep 18, 2014
Est. expiryMar 15, 2033(~6.6 yrs left)· nominal 20-yr term from priority
Inventors:Vincent A. Bussio
E03F 5/021E02D 29/124Y10T137/7025E03F 5/024E02D 29/12E02D 29/10
40
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A polymer manhole base comprising a base portion having an upper surface. An annular sidewall may extend upward from the base portion and may circumscribing the upper surface. The annular sidewall may have a diameter. A thickness of the annular sidewall may less than 1/12th of the diameter.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A manhole base comprising:
 a base portion having an upper surface;   an annular sidewall extending upward from the base portion and circumscribing the upper surface;   a wastewater inlet and a wastewater outlet formed in the sidewall; and   a wastewater trough formed in the upper surface, the wastewater trough extending between the wastewater inlet and the wastewater outlet;   wherein the annular sidewall comprises an inner diameter;   wherein a thickness of the annular sidewall is less than 1/12th of the inner diameter.   
     
     
         2 . The manhole base of  claim 1 , wherein the manhole base comprises a resin and an aggregate mixture. 
     
     
         3 . The manhole base of  claim 2 , wherein the thickness of the sidewall is between one and three inches. 
     
     
         4 . The manhole base of  claim 2 , wherein the thickness of the sidewall is about two inches. 
     
     
         5 . The manhole base of  claim 2 , wherein the wastewater trough comprises a ninety-degree bend. 
     
     
         6 . The manhole base of  claim 2 , wherein the upper surface comprises one or more anchors extending therefrom. 
     
     
         7 . The manhole base of  claim 2 , wherein a height of the annular sidewall is between two feet and six feet. 
     
     
         8 . The manhole base of  claim 2 , wherein the inner diameter of the annular sidewall is between 48 inches and 60 inches. 
     
     
         9 . The manhole base of  claim 2 , further comprising a bench formed on the upper surface. 
     
     
         10 . The manhole base of  claim 9 , wherein the bench comprises a slope of between 1 degree and 45 degrees. 
     
     
         11 . A manhole system comprising:
 a manhole base comprising:
 a base portion having an upper surface, 
 an annular sidewall extending upward from the base portion and circumscribing the upper surface, 
 a wastewater inlet and a wastewater outlet formed in the sidewall, and 
 a wastewater trough formed in the upper surface, the wastewater trough extending between the wastewater inlet and the wastewater outlet, 
 wherein the annular sidewall comprises an inner diameter, 
 wherein a thickness of the annular sidewall is less than 1/12th of the inner diameter; 
   a cone defining a worker access opening; and   a riser portion interposed between the manhole base and the top portion.   
     
     
         12 . The manhole system of  claim 11 , wherein the manhole base comprises a resin and an aggregate mixture. 
     
     
         13 . The manhole system of  claim 12 , wherein the thickness of the sidewall is between one and three inches. 
     
     
         14 . The manhole system of  claim 12 , wherein the thickness of the sidewall is about two inches. 
     
     
         15 . The manhole system of  claim 12 , wherein the wastewater trough comprises a ninety-degree bend. 
     
     
         16 . The manhole system of  claim 12 , wherein the upper surface comprises one or more anchors extending therefrom. 
     
     
         17 . The manhole system of  claim 12 , wherein a height of the annular sidewall is between two feet and six feet. 
     
     
         18 . The manhole system of  claim 12 , wherein the inner diameter of the annular sidewall is between 48 inches and 60 inches. 
     
     
         19 . The manhole system of  claim 12 , further comprising a bench formed on the upper surface. 
     
     
         20 . The manhole system of  claim 12 , wherein the bench comprises a slope of between 1 degree and 45 degrees. 
     
     
         21 . A method of forming an access to a municipal wastewater system, said method comprising:
 excavating a hole;   placing a manhole base at a bottom of the hole;   placing one or more risers on top of the manhole base;   placing a cone on top of the one or more risers; and   backfilling the hole;   wherein the manhole base comprises:
 a base portion having an upper surface, 
 an annular sidewall extending upward from the base portion and circumscribing the upper surface, 
 a wastewater inlet and a wastewater outlet formed in the sidewall, and 
 a wastewater trough formed in the upper surface, the wastewater trough extending between the wastewater inlet and the wastewater outlet, 
 wherein the annular sidewall comprises an inner diameter, 
 wherein a thickness of the annular sidewall is less than 1/12th of the inner diameter. 
   
     
     
         22 . The method of  claim 21 , wherein the manhole base comprises a resin and an aggregate mixture. 
     
     
         23 . The method of  claim 22 , wherein the thickness of the sidewall is between one and three inches. 
     
     
         24 . The method of  claim 22 , wherein the thickness of the sidewall is about two inches. 
     
     
         25 . The method of  claim 22 , wherein the wastewater trough comprises a ninety-degree bend. 
     
     
         26 . The method of  claim 22 , wherein the upper surface comprises one or more anchors extending therefrom. 
     
     
         27 . The method of  claim 22 , wherein a height of the annular sidewall is between two feet and six feet. 
     
     
         28 . The method of  claim 22 , wherein the inner diameter of the annular sidewall is between 48 inches and 60 inches. 
     
     
         29 . The method of  claim 22 , further comprising a bench formed on the upper surface. 
     
     
         30 . The method of  claim 22 , wherein the bench comprises a slope of between 1 degree and 45 degrees. 
     
     
         31 . A manhole base comprising:
 a base portion having an upper surface;   an annular sidewall extending upward from the base portion and circumscribing the upper surface;   a wastewater inlet and a wastewater outlet formed in the sidewall;   a wastewater trough formed in the upper surface, the wastewater trough extending between the wastewater inlet and the wastewater outlet; and   a bench formed on the upper surface;   wherein the annular sidewall comprises an inner diameter;   wherein a thickness of the annular sidewall is less than 1/12th of the inner diameter;   wherein the manhole base comprises a resin and an aggregate mixture;   wherein the thickness of the sidewall is between one and three inches;   wherein the upper surface comprises one or more anchors extending therefrom;   wherein a height of the annular sidewall is between two feet and six feet;   wherein the inner diameter of the annular sidewall is between 48 inches and 60 inches;   wherein the bench comprises a slope of between 1 degree and 45 degrees.

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