Ball skate

Details Ball skate Ball skate

1977-12-09

1979-05-08

Mitchell, David M.

Land vehicles

Skates

With propulsion means driven by occupant

280 1114, 280 1119, 280 1126, A63C 1724

Patent

active

041532635

ABSTRACT:
A ball skate having the bearing portions of the axles for hemispherical rollers inclined toward the skating surface for presenting substantially tangential relationship of the rollers at the skating surface. The platforms are spring-mounted over the rollers and the main support member between the axle is preferably adjustable in length.

REFERENCES:
patent: 10331 (1883-05-01), Pederson
patent: 334281 (1886-01-01), Punches
patent: 388693 (1888-08-01), La Chaine
patent: 577628 (1897-02-01), Segerberg
patent: 2166767 (1939-07-01), Petermann
patent: 2212589 (1940-08-01), Decker
patent: 2557331 (1951-06-01), Wintercorn
patent: 3993318 (1976-11-01), Rothmayer

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