초록 ▼

The drain assembly is constructed with a segmented ball valve of stainless steel or plastic which is rotatable between an open position and a closed position by a shaft extending from the drain body. An annular valve seat is biased against the valve body by a compression device and an annual retaine

The drain assembly is constructed with a segmented ball valve of stainless steel or plastic which is rotatable between an open position and a closed position by a shaft extending from the drain body. An annular valve seat is biased against the valve body by a compression device and an annual retainer which is threaded into the valve body from above. A strainer may also be provided to catch large particles which might otherwise not be desirable for passage through the drain assembly. The valve body provides a relatively large opening for the discharge of fluids into a drain pipe.

대표청구항 ▼

[ What is claimed is:] [1.] A drain assembly for a sink comprisinga one-piece hollow body defining a fluid path, said body having an external thread for passage through an opening in the sink and an annular flange to seat about an opening in the sink;a hollow ball valve rotatably mounted in said bod

[ What is claimed is:] [1.] A drain assembly for a sink comprisinga one-piece hollow body defining a fluid path, said body having an external thread for passage through an opening in the sink and an annular flange to seat about an opening in the sink;a hollow ball valve rotatably mounted in said body in said flow path, said ball valve being rotatable between a closed position closing said fluid path and an open position opening said fluid path;means for rotating said ball valve between said positions; anda flange nut threaded onto said external thread of said body to secure said body in the sink.