초록 ▼

An improved drain coupling of the type having a male coupling half including a body having an inner body end and an outer body end. A passage axially extends through the body intersecting the body ends. A valve is axially reciprocally mounted within the passage between a closed position and an open

An improved drain coupling of the type having a male coupling half including a body having an inner body end and an outer body end. A passage axially extends through the body intersecting the body ends. A valve is axially reciprocally mounted within the passage between a closed position and an open position for regulating flow of fluid through the passage. The improvement includes, among other things, a valve having a first valve end adjacent to the inner body end and a second valve end adjacent to the outer body end. The valve has a central portion positioned at a center of the valve adjacent to the second valve end.

대표청구항 ▼

[ We claim:] [1.] A drain coupling comprising:a male coupling half including a body having an inner body end and an outer body end with a first passage axially extending through said body intersecting said body ends;a first valve axially reciprocally mounted within said first passage between a close

[ We claim:] [1.] A drain coupling comprising:a male coupling half including a body having an inner body end and an outer body end with a first passage axially extending through said body intersecting said body ends;a first valve axially reciprocally mounted within said first passage between a closed position and an open position for regulating flow of fluid through said first passage, said first valve having an inner valve end adjacent to said inner body end and an outer valve end adjacent to said outer body end, said first valve having a central portion being positioned generally at a center of said first valve adjacent to said outer valve end;a female coupling half having a leading end and a trailing end with a second passage axially extending between said leading and trailing ends; anda second valve axially reciprocally mounted between a closed position and an open position in said second passage for regulating flow of fluid through said second passage, whereby said second valve engages said central portion of said first valve of said male half coupling to move said first valve from said closed position to said open position and to move said second valve from said closed position to said open position to allow flow of fluid through said first passage of said male coupling and said second passage of said female coupling.