Quarles & Brady
Floor clean-out assembly
 A floor clean-out assembly for a drain pipe comprises a tubular adapter having a top shaped to serve as the ball of a ball and socket and a bottom for connection to a drain pipe; and a tubular extension member for extending from the top of the adapter to a floor. The extension member has a bottom shaped to serve as a socket. When the top of the adapter is in the socket of the extension member, the extension member can be rotated so that its top is level with a floor. The adapter and extension member are preferably made of solvent weldable material so they can be readily welded in a desired position. 
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additional additional inventional inventional
James
Piskula