Patent ID: 7461570
Filing Date: 2008-12-09
Classification: F16H,Y10T

Abstract:
1. A variable automatic transmission for a vehicle, comprising: a housing, a first frusto-conical gear having a plurality teeth on an outer surface thereof and a hollow opening therein extending the length thereof and rotatably disposed within said housing, said first frusto-conical gear have a plurality of teeth on an inner surface thereof, a first main power shaft having a plurality of sliding face gears slidably supported thereon, wherein a first of said plurality of sliding face gears engages an input gear from the engine and the last of said plurality of sliding face gears engages the plurality of the inner teeth of said first fruto-conical gear, a second frusto-conical gear having a plurality of teeth on an outer surface thereof and a plurality of teeth on an inner surface thereof, and rotatably disposed within said housing on a second main power shaft, a second plurality of sliding face gears slidably supported on said second main power shaft, said plurality of outer teeth of said first frusto-conical gear threadably engaging said first frusto-conical gear plurality of outer teeth.