Patent ID: 8394062

Claim:
A gearbox, comprising: an outer housing having a first side wall and a second side wall opposite and spaced apart from said first side wall; an inner gear assembly received within said outer housing, said inner gear assembly comprising: an inner housing; a first gear member rotatably received within said inner housing; and a second gear member having an output shaft rotatably supported on said inner housing and a toothed portion intermeshing with said first gear member; a slider plate received within said outer housing and having a first plurality of axially aligned elongate openings and a second plurality of axially aligned elongate openings, said first plurality of elongate openings is aligned with a first axis and said second plurality of elongate openings is aligned with a second axis; said first sidewall having a first plurality of pins, each one of said first plurality of pins running in a respective one of said first plurality of elongated openings to allow relative sliding movement between said outer housing and said slider plate along said first axis; and said inner housing having a second plurality of pins, each one of said second plurality of pins running in a respective one of said second plurality of elongate openings to allow relative sliding movement between said inner housing and said slider plate along said second axis.