Patent ID: 6880424

Claim:
An ergonomic device actuator comprising: a housing; a nut disposed to rotate within said housing, said nut having right handed threads at a first end of said nut and said nut having left handed threads at a second end of said nut; a first lead screw having right handed threads disposed to translate in a first direction within said nut and being extendingly engaged with said first end of said nut; a second lead screw having left handed threads disposed to translate in a second direction within said nut and being extendingly engaged with said second end of said nut; a seat in one of said first or second lead screws adapted to anchor a tension cable wire end axially with said first and second lead screws; and a collar on the other of said first or second lead screws adapted to anchor a tension cable sleeve end axially with said first and second lead screws; whereby rotation of said nut drives said first lead screw and said second lead screw apart, tensioning the tension cable by urging the tension cable wire end apart from the tension cable sleeve end.