Liquid purification or separation – With repair or assembling means
Patent
1995-08-14
1997-10-28
Walker, W. L.
Liquid purification or separation
With repair or assembling means
210418, 210460, 285156, 285180, 137216, B01D 2708
Patent
active
056814593
ABSTRACT:
Reject waste water adapter coupling fitting, system and installation method for use with a household undercounter reverse osmosis (R/O) water filtration installation associated with an in-counter sink having a garbage disposer with its outlet connected by standard slip fit plumbing fittings to a sink drain trap plumbed to the household sewer system. The R/O reject waste water undercounter drain line is coupled into the sink drain trap in parallel drainage relation with the disposer outlet plumbing fittings by a baffle Tee plumbing fitting having first and second inlets perpendicular to one another with their input drainage liquid flow separated by an internal baffle. The garbage disposer outlet is coupled by a standard slip fit single inlet/outlet conduit plumbing fitting to the baffle Tee first inlet. The baffle tee has a single outlet slip coupled to the inlet of the trap. An R/O drain elbow adapter coupling has its inlet connected to the waste water drain line and its outlet coupled via plumbing fitting coupling structure to the Tee second inlet, and end closure structure is operably associated with the elbow coupling and sealably closes a normally open inlet of the drain fitting coupling structure. In one embodiment the end closure structure is directly attached to the baffle Tee second inlet and has a circular disc with a through-opening threadably receiving the elbow outlet, a standard washer seated on the baffle Tee second inlet, the disc being seated on the washer, and a slip joint nut threadably received on the baffle Tee second inlet and clamping the disc and washer sealably thereagainst. For an installation with a second non-disposer in-counter sink mounted adjacent the disposer sink, a series of S/J standard plumbing fittings connect the second sink drain outlet to the baffle Tee second inlet. A three-way Tee has its coaxial inlet and outlet ends serially slip coupled into the fittings and the end closure structure and associated elbow outlet are attached to a side T-inlet of the three-way Tee. Improved installation methods, various improved waste water drainage systems and various improved adapter coupling embodiments are also disclosed for commercial as well as household undercounter use.
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