Patent ID: 7258642

Claim:
A simultaneous multiple rotation interface system, comprising: an input shaft, said input shaft having a first offset portion and a second offset portion, said first and second offset portions being axially offset from said input shaft axis by the same distance in diametrically opposing directions; a first driver disc, said first driver disc having a first and second face, said first driver disc being centrally, axially positioned about said first offset portion, said first driver disc being configured to freely rotate about said first offset portion, said first driver disc having a plurality of half spherical grooves on said first and second faces of said first driver disc, said first driver disc having a plurality of half cylindrical grooves about the circumference of said first driver disc; a second driver disc, said second driver disc having a first and second face, said second driver disc being centrally, axially positioned about said second offset portion, said second driver disc being configured to freely rotate about said second offset portion, said second driver disc having a plurality of half spherical grooves on said first and second faces of said second driver disc, said second driver disc having a plurality of half cylindrical grooves about the circumference of said second driver disc, said first and second driver discs being engaged with one another via a plurality of balls substantially half seated in said plurality of half spherical grooves in said first face of said first driver disc and substantially half seated in said plurality of half spherical grooves in said first face of said second driver disc; a first engagement means, said first engagement means being a plurality of cylindrical dowels substantially half seated in said plurality of half cylindrical grooves of said first driver disc; a second engagement means, said second engagement means being a plurality of cylindrical dowels substantially half seated in said plurality of half cylindrical grooves of said second driver disc; and an output component, said output component comprising a plurality of cylindrical rods radially positioned about said input shaft such that said first and second engagement means engage said output component at diametrically opposing points.