“There is no known mechanical apparatus enabling a human being to walk in a prone position, like a lizard, like a spider, close to the ground, using arms and legs as will be made possible with the Quadra Walker (QW) disclosed herein.”
Its inventor, Herbert Russell Burnham of Chula Vista, California, explains in a newly released US patent document, that :
“Walking in a prone position, close to the ground, is a new concept which will afford human beings with a new travelling experience on open ground or through underbrush, through thick forests, climbing slopes or walking on water, and on the fields of competitive sports.“
See: United States Patent 10,011,311, July 3, 2018