Wheel substitutes for land vehicles – Stepper type – Feet attached to rim
Patent
1994-02-23
1995-01-10
Stormer, Russell D.
Wheel substitutes for land vehicles
Stepper type
Feet attached to rim
301 50, 280 52, B60B 1520
Patent
active
053800753
ABSTRACT:
A wheel to support a pipe, or a tower carrying a pipe, of an agricultural irrigation system, especially of a rotary type, provides a polygonal metal web with feet pivotally mounted by foot supports at the vertices of the web. The feet have relatively wide base elements for support on unstable wet earth that define depending protuberances oriented perpendicularly to the direction of travel of the wheel to minimize rut creation of waterflow along ruts in the earth being traversed. Foot supports carried by the wheel provide two spaced radially extending pivot elements about which the supported foot pivots in sequence in moving over supporting earth to lessen the vertical component of motion of the wheel. A species provides a movably mounted cleat on the outer surface of each foot to enhance traction and cleaning action
REFERENCES:
patent: 72397 (1867-12-01), James
patent: 975117 (1910-11-01), Bower
patent: 1444373 (1915-06-01), Morton
patent: 1586935 (1926-06-01), Wine
patent: 1629126 (1927-05-01), Slauson
patent: 1677568 (1928-07-01), Slauson
patent: 1705796 (1929-03-01), Wine
patent: 2145175 (1939-02-01), Dillingham
patent: 4759638 (1988-07-01), McLaughlin
Bergman Keith S.
Stormer Russell D.
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