Wheel substitutes for land vehicles – Stepper type
Reexamination Certificate
2005-02-17
2008-03-25
Stormer, Russell D. (Department: 3617)
Wheel substitutes for land vehicles
Stepper type
C301S052000, C305S060000, C180S008300
Reexamination Certificate
active
07347511
ABSTRACT:
A rotary walking device having multiple sequential ground engaging elongated struts interconnected between pairs of annular drive disks. Each pair of drive disks having multiple pivot attachment points for the respective opposing apertured ends of each strut. Each strut having angularly offset parallel engagement ends which engage with spaced co-parallel drive disks affording a unique rotational linear travel path that allows each of the struts to sequentially engage the ground and propel the assembly forward in a progressive walking like motion when used in combination with corresponding second strut drive assembly.
REFERENCES:
patent: 1396194 (1921-11-01), Gould
patent: 1422952 (1922-07-01), Feuillette
patent: 1840779 (1932-01-01), Johnston
patent: 2786540 (1957-03-01), Sfredda
patent: 5685383 (1997-11-01), Ferrante
patent: 6068073 (2000-05-01), Roston et al.
patent: 6463356 (2002-10-01), Hattori et al.
patent: 6832132 (2004-12-01), Ishida et al.
Harpman & Harpman
Kotter Kip
Stormer Russell D.
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