Dutch trap

Abstract

A tubular insert is inserted in a tubular P-Trap which comprises a straight inlet section, a U-Bend trap section, and a straight outlet section. The insert has an inner diameter, an outer diameter, and a length such that the length is greater than an inner diameter of the P-Trap. Liquid flow is allowed to pass through the insert but oversized objects, having a maximum size greater than the insert inner diameter of the insert, are prevented from flowing through it. A retractor is used to retract the insert along with the oversized object from the inlet section of the P-Trap.

1 . A tubular insert for use with a tubular P-Trap, said insert operable to prevent an object from flowing through the P-Trap, said P-Trap comprising:
 (a) a straight inlet section operable to receive liquid;   (b) a U-Bend trap section operable to trap the liquid; and   (c) a straight outlet section operable to discharge the liquid;   said P-Trap further comprising a P-Trap inner diameter;   said insert comprising:   (i) an insert inner diameter;   (ii) an insert outer diameter; and   (iii) an insert length;   wherein the insert is slidably inserted into the straight inlet section until an edge section of a perimeter of the insert rests against an inner side of the U-Bend trap section;   wherein the insert inner diameter is less than a maximum size of the object;   wherein the insert outer diameter is less than the P-Trap inner diameter; and   wherein the insert length is greater than the P-Trap inner diameter.   
     
     
         2 . The insert of  claim 1 , wherein the P-Trap is made of acrylonitrile butadiene styrene. 
     
     
         3 . The insert of  claim 1 , wherein the insert is made of polyvinyl chloride. 
     
     
         4 . The insert of  claim 1 , wherein the P-Trap inner diameter is equal to 4 inches. 
     
     
         5 . The insert of  claim 1 , wherein the insert outer diameter is equal to 3.75 inches. 
     
     
         6 . The insert of  claim 1 , wherein the insert inner diameter is equal to 3.5 inches. 
     
     
         7 . The insert of  claim 1 , wherein the insert length is in the range between 6 inches and 8 inches. 
     
     
         8 . The insert of  claim 1 , further comprising one or more circular holes disposed circumferentially around an axial direction of the insert. 
     
     
         9 . The insert of  claim 8 , wherein the one or more circular holes comprise 4 circular holes having a diameter equal to 0.75 inches, wherein the 4 circular holes are disposed circumferentially around the axial direction of the insert at 90 degrees intervals, and wherein the 4 circular holes are disposed axially 0.5 inches from a distal edge of the insert. 
     
     
         10 . The insert of  claim 1 , wherein the maximum size of the oversized object is equal to a diameter of a sphere circumscribing the object. 
     
     
         11 . A method for preventing an object from flowing through a tubular P-Trap, said P-Trap comprising:
 (a) a straight inlet section operable to receive liquid;   (b) a U-Bend trap section operable to trap the liquid; and   (c) a straight outlet section operable to discharge the liquid;   said P-Trap further comprising a P-Trap inner diameter;   said method comprising   (A) providing for a tubular insert, said insert comprising:   an insert inner diameter;   (ii) an insert outer diameter; and   (iii) an insert length;   (B) slidably inserting said insert into the straight inlet section until an edge section of a perimeter of the insert rests against an inner side of the U-Bend trap section;   wherein the insert inner diameter is less than a maximum size of the object;   wherein the insert outer diameter is less than the P-Trap inner diameter; and   wherein the insert length is greater than the P-Trap inner diameter.   
     
     
         12 . The method of  claim 11 , further comprising:
 (C) retracting said insert, via a retractor.   
     
     
         13 . The method of  claim 12 , wherein the insert further comprises one or more circular holes disposed circumferentially around an axial direction of the insert, wherein the retractor comprises a circular rod, wherein the circular rod comprises a bend, and wherein the bend is operable to engage one of the one or more circular holes facilitating the retracting of the insert. 
     
     
         14 . The method of  claim 11 , wherein the P-Trap is made of acrylonitrile butadiene styrene. 
     
     
         15 . The method of  claim 11 , wherein the insert is made of polyvinyl chloride. 
     
     
         16 . The method of  claim 11 , wherein the P-Trap inner diameter is equal to 4 inches. 
     
     
         17 . The method of  claim 11 , wherein the insert outer diameter is equal to 3.75 inches. 
     
     
         18 . The method of  claim 11 , wherein the insert inner diameter is equal to 3.5 inches. 
     
     
         19 . The method of  claim 11 , wherein the insert length is in the range between 6 inches and 8 inches. 
     
     
         20 . A tubular insert for use with a tubular pipe, said insert operable to prevent an object from flowing through the pipe, said pipe comprising a pipe bend and a pipe inner diameter, said insert comprising:
 an insert inner diameter;   (ii) an insert outer diameter; and   (iii) an insert length;   wherein the insert is slidably inserted into the pipe until an edge section of a perimeter of the insert rests against an inner side of the pipe bend;   wherein the insert inner diameter is less than a maximum size of the object;   wherein the insert outer diameter is less than the pipe inner diameter; and   wherein the insert length is greater than the pipe inner diameter.