Appeal No. 2004-1223 Page 6
Application No. 09/842,142
The teachings of Liebert
Liebert's invention relates to the design and use of muscle powered mechanisms
useful for land, water and air vehicles of foot pedal and hand lever design. The
mechanism can utilize either arm or leg muscles or preferably, both arms and legs
extending and retracting in a manner similar to walking or running as performed from a
semi-recumbent position. Steering or other critical control is accomplished through
another mechanism which is guided by the appropriate movement of the operator's
head. The operator's feet are placed on pedals which are attached to swinging
members which pivot in a bearing at the upper end. The operator's hands grasp
leverage arms which are cantilevered, the distal ends of which are attached to the same
push-pull connecting rods as the above mentioned swinging members with foot pedals
attached.
As shown in Figures 5 and 7, steering of a velocipede is accomplished by the
appropriate movement of the operator's head or head and upper torso. The
appropriate movement necessary for a left turn, shown in Figure 5, can be
accomplished by the operator's head or head and upper torso moving a steering lever
37 attached to the operator's helmet to the left. The steering lever 37 is adjustably
mounted within and then pinned or bolted to a vertical steering rod 38. The turning
motion of the steering lever 37 is communicated to an inverted "T" 39 affixed at the
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