Patent ID: 9404561
Filing Date: 2016-08-02
CPC Classification: F16H,F16K,Y10T

Claim Text:
1. A fluid flow apparatus having a flow passage between one or more input ports and output ports, said fluid flow apparatus comprising: a body having a stem receptacle for receipt of a stem assembly, said stem assembly comprising a pinion gear; a thrust tube engaged with a thrust tube jam nut, said thrust tube having an internally threaded section; a rotatable sleeve having an externally threaded section engaged with said internally threaded section of said thrust tube, said sleeve having an external helical bevel ring gear arranged along a helical path about said sleeve, said external helical bevel ring gear engaged with said pinion gear of said stem assembly; a plug assembly comprising a contoured plug positioned within said flow passage; and an annular seat having an orifice, said seat retained by said sleeve, wherein said orifice of said seat is linearly movable toward said plug assembly.