Wheel substitutes for land vehicles – Combined or convertible
Patent
1978-05-26
1979-11-27
Shannon, John P.
Wheel substitutes for land vehicles
Combined or convertible
74243R, 305 57, B62D 5514
Patent
active
041757963
ABSTRACT:
A wheel has a hub and a rim connected to the hub. Teeth are positioned on the outer surface of the rim and arcuately spaced one from the other by a root area. The root areas have an outer periphery and define a root diameter. The wheel has an annular opening in communication with said outer periphery of the root areas. A hoop having an outside diameter greater than the root diameter is positioned in the annular opening for movement in response to operation of the wheel and cleaning of material from the root areas in response to the movement.
REFERENCES:
patent: 1607940 (1926-11-01), Best
patent: 1841925 (1932-01-01), Woodbury
patent: 3899219 (1975-08-01), Boggs
patent: 4058352 (1977-11-01), Sogge
patent: 4080008 (1978-03-01), Groff et al.
patent: 4082372 (1978-04-01), Kozuki
Boggs Roger L.
Christensen Jon C.
Caterpillar Tractor Co.
Heming William B.
Shannon John P.
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