Title: Cultivator apparatus

Abstract: A cultivator apparatus attached to a draw bar hitched to a tractor and having a tool bar attached to the draw bar and movable therewith. A cultivating mechanism is attached to the tool bar and is movable between positions of engagement and disengagement with the ground when the tool bar is moved. A plurality of cultivating units comprise the cultivating mechanism and are independently movable about the tool bar. A lateral support mechanism is comprised of gauge wheels mounted intermediate the ends of each of the cultivating units. Each gauge wheel is laterally offset with respect to the cultivating unit to which it is attached.

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Inventors: Ernst, Arnold E. (Wolverton, MN, US)

Application Number: 562016
Filing Date: 1975-03-26
Publication_date: 1977-03-01
Assignee:
Primary Class(es): 172/395 172/134, 172/180, 172/181, 172/182, 172/488, 172/507, 172/574
Other Classes:
US Patent Ref:

203048	Apr, 1878	Johnson	172/507.
258782	May, 1882	Lynch	172/624.
351154	Oct, 1886	Bilz	172/507.
1040879	Oct, 1912	Calvin	172/181.
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1074763	Oct, 1913	Wills	172/507.
1155833	Oct, 1915	Melton	172/180.
1176514	Mar, 1916	Berthelote	172/178.
1667866	May, 1928	Olson	172/395.
1740841	Dec, 1929	Smith	172/395.
1835095	Dec, 1931	Schanil	172/181.
1886438	Nov, 1932	Weeks	172/676.
1916637	Jul, 1933	Rhodes	172/180.
2691930	Oct, 1954	Forgy	172/398.
2881845	Apr, 1959	Aitkenhead	172/627.
3040818	Jun, 1962	Mattson	172/575.
3157234	Nov, 1964	Bezzerides	172/178.
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3680648	Aug, 1972	Tonsfeldt	172/201.

Other Refs: 248,409434,319607,926

Jan, 1961	AU
Sep, 1926	DD
Sep, 1948	UK

Primary Examiner: Shapiro, Paul E.
Assistant Examiner:
Attorney: Henderson, Strom & Sturm