Modular valve service box

An improved valve box comprising:

• a first generally vertically elongated hollow member open at its bottom end and its top end, a hollow valve housing formed on the bottom end of said first member, the interiors of said member and said housing communicating, said hollow valve housing having a diameter greater than said first member thereby defining an annular upper surface of said hollow valve housing about said first member, the housing being open at its bottom end and adapted to receive a valve body having diametrically opposed inlet and outlet conduits extending generally horizontally therefrom, at least two diametrically opposed inlet and outlet conduit receiving openings in the side of said housing, each of said opening being closed at the top and communicating with the open bottom end of said housing;
• a second generally vertically elongated hollow member opened at a bottom and a top end, said generally vertically elongated hollow member having a collar and a closure means cooperable with said top end, said bottom end extending downwardly in relationship with said first generally vertically elongated hollow member, said collar enclosure means being positioned proximate the surface of the ground, the improvement comprising:
• a modular valve box adaptor being a third generally vertically elongated hollow member open at a bottom end and a top end, said modular valve box adaptor having a circumferentially stepped sidewall presenting distinct decreased diameters from said bottom end towards said top end, said modular valve box adaptor positioned between said first and second generally vertically elongated hollow member, said first generally vertically elongated hollow member slidably engageable into said bottom end of said modular valve box adaptor, said top end of said first generally vertically elongated hollow member in stopped engagement with a respective step of said circumferentially stepped sidewall corresponding to said diameter of said first generally vertically elongated hollow member, said top end of said modular valve box adaptor dimensioned to slidably receive said bottom end of said first generally vertically elongated hollow member to a preselected depth.

A modular valve box adaptor for a valve box, said valve box comprised of a first generally vertically elongated hollow member open at its bottom end and its top end and having a hollow valve housing formed on the bottom end, said hollow valve housing adapted to receive a valve body and a second generally vertically elongated hollow member frictionally engageable with said first generally vertically elongated hollow member extending upwardly from said first generally vertically elongated hollow member and terminating in a collar and closure means, said modular valve box adaptor comprising a generally vertically elongated hollow member opened at its bottom end and its top end and positioned between said first generally vertically elongated hollow member and said second generally vertically elongated hollow member, said modular valve box adaptor having a circumferentially stepped sidewall presenting distinct decreased diameters from said bottom end towards said top end, said first generally vertically elongated hollow member slidably engageable into said bottom end of said modular valve box adaptor, said top end of said first generally vertically elongated hollow member in stopped engagement with a respective step of said stepped sidewall corresponding to said diameter of said first generally vertically elongated hollow member, said second generally vertically elongated hollow member having a lower end slidably positioned within said top end of said modular valve box adaptor and secured thereto, such that said collar and closure means are positioned in proximate planar alignment with the surface of the ground.