Patent ID: 7959176
Filing Date: 2011-06-14
Classification: A61G,B60B

Abstract:
1. A conveyance, comprising: a plurality of wheels including, at least, a first wheel and a second wheel; at least two drive axles disposed between said plurality of wheels, said at least two drive axles including a first drive axle and a second drive axle, said first wheel being rotatably mounted to a first end of said first drive axle and said second wheel being rotatably mounted to a first end of said second drive axle with said first drive axle and said second drive axle being coaxially disposed between said first wheel and said second wheel and said first drive axle coaxially disposed within said second drive axle; first actuation means for said first drive axle, said first actuation means being located on a second end of said first drive axle from said first wheel and proximate said second wheel, said second end of said first drive axle being an end opposite said first end of said first drive axle; and, second actuation means for said second drive axle, said second actuation means being located on a second end of said second drive axle from said second wheel and proximate said first wheel, said second end of said second drive axle being an end opposite said first end of said second drive axle, wherein said first actuation means is selectively operable for applying selective relative rotation to said first wheel and said second actuation means is selectively operable for applying selective relative rotation to said second wheel.