Water tank with integrated seat

Abstract

A storage tank ( 10 ) has a hollow interior ( 25 ) defined by at least one wall, the at least one wall having at least two wall portions ( 12, 14, 16, 18, 20, 22, 24 ) and defining at least one passageway ( 60 ) communicating with the exterior of the tank that extends between at least two ( 12, 18 ) of the at least two wall portions ( 12, 14, 16, 18, 20, 22, 24 ) and through the hollow interior ( 25 ).

I claim: 
     
         1 . A storage tank having a hollow interior defined by at least one wall, the at least one wall having at least two wall portions and defining at least one passageway communicating with the exterior of the tank that extends between at least two of the at least two wall portions and through the hollow interior. 
     
     
         2 . The storage tank of  claim 1  wherein at least one of the at least one passageway has at least one first opening in a first one of the at least two wall portions and at least one second opening in at least a second one of the at least two wall portions. 
     
     
         3 . The storage tank of  claim 2  comprising at least multiple first openings in the first one of the at least two wall portions. 
     
     
         4 . The storage tank of  claim 3  comprising at least multiple second openings in the second one of the at least two wall portions. 
     
     
         5 . The storage tank of  claim 3  wherein at least one of the at least two wall portions comprises at least one recessed portion surrounding at least one of the first and second openings. 
     
     
         6 . The storage tank of  claim 5  wherein at least one of the at least one recessed portion surrounds multiple openings. 
     
     
         7 . The storage tank of  claim 6  wherein the multiple first openings comprise a first set that lies upon a first line and a second set that lies upon a second line and wherein adjacent first openings are located on alternate ones of the first and second lines. 
     
     
         8 . The storage tank of  claim 6  wherein at least one of the at least one passageway comprises a central portion having an end view cross sectional area that varies with distance from a wall portion with which the respective passageway extends from. 
     
     
         9 . The storage tank of  claim 8  wherein the central portion is conical, substantially conical or generally conical. 
     
     
         10 . The storage tank of  claim 1  wherein the two wall portions comprise a top wall portion, adapted to be sat upon by a person, and a bottom wall portion adapted to rest upon the ground. 
     
     
         11 . The storage tank of  claim 10  wherein the top wall portion includes at least one cushion retaining member to aid retention of a cushion placed on an upper surface of the top wall portion. 
     
     
         12 . The storage tank of  claim 11  wherein the at least one cushion retaining member is raised above the majority of the top wall portion. 
     
     
         13 . The storage tank of  claim 11  wherein the at least one retaining member comprises at least one of at least one protrusion and at least one upwardly extending lip. 
     
     
         14 . The storage tank of  claim 10  wherein the top wall portion extends in a first direction substantially parallel to the bottom wall portion but is angled to the bottom wall portion in a second direction transverse to the first direction. 
     
     
         15 . The storage tank of  claim 14  wherein the angle is about 5 degrees. 
     
     
         16 . The storage tank of  claim 14  comprising at least multiple first openings in the top wall portion. 
     
     
         17 . The storage tank of  claim 10  wherein at least one of the at least one passageway comprises a central portion having an end view cross sectional area that varies with distance from a wall portion with which the respective passageway extends from. 
     
     
         18 . The storage tank of  claim 17  wherein the central portion is conical, substantially conical or generally conical. 
     
     
         19 . The storage tank of  claim 8  wherein the at least one wall comprises a single continuous wall. 
     
     
         20 . The storage tank of  claim 20  comprising a hollow back rest portion that has a forward surface extending upwardly from one of the at least two wall portions. 
     
     
         21 . A storage tank having a hollow interior defined by a single continuous wall, the single continuous wall comprising at least two wall portions, the at least two wall portions comprising a top wall portion, adapted to be sat upon by a person, and a bottom wall portion adapted to rest upon the ground;
 the top wall portion extending in a first direction substantially parallel to the bottom wall portion but angled to the bottom wall portion in a second direction transverse to the first direction;   at least one passageway extending between the top and bottom wall portions through the hollow interior and communicating with the exterior of the tank;   the at least one passageway comprising at least one first opening in the top wall portion and at least one second opening in the bottom wall portion   at least the top wall portion comprising at least one recessed portion surrounding at least one of the at least one first opening;   the at least one first passageway comprising a frusto-conical central portion;   the top wall portion comprising a peripheral region, said peripheral region including at least one retaining member that is raised above the majority of the top wall portion, and   a hollow back rest portion that has a forward surface extending upwardly from the top wall portion.