Earth working – Processes
Patent
1979-06-25
1980-07-22
Shapiro, Paul E.
Earth working
Processes
172 64, 172 90, 172143, 172237, A01B 3518
Patent
active
042135028
ABSTRACT:
A dammer having three legs with a foot on the end of each leg is towed behind agricultural cultivating implements. Each foot slides flat against the earth until the weight of the soil causes the dammer to rotate, at which time the dammer rotates one-third of a revolution dumping one dam and continuing to form another.
REFERENCES:
patent: 2098738 (1937-11-01), Campbell
patent: 2187051 (1940-01-01), Peacock
patent: 2187262 (1940-01-01), Brown
patent: 2780975 (1957-02-01), Gunning
Coffee Wendell
Shapiro Paul E.
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