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Class Information
Number: 172/680
Name: Earth working > With draft detail > Adjustable > Vertical
Description: Apparatus wherein the means for hitching the implement to the propelling means is adjustable in a vertical sense.

Patents under this class:

Patent Number Title Of Patent Date Issued
8544397 Row unit for agricultural implement Oct. 1, 2013
8544398 Hydraulic down pressure control system for closing wheels of an agricultural implement Oct. 1, 2013
8496070 Folding hitch lift arm Jul. 30, 2013
8028632 Prescision hoe opener with swing link between cylinder and shank Oct. 4, 2011
7685950 Furrow opener apparatus with two way depth control Mar. 30, 2010
7264064 Hydraulic pump drive Sep. 4, 2007
7163068 Hitch assembly Jan. 16, 2007
7073603 Device for coupling two units to each other Jul. 11, 2006
7055618 Hydraulic pump drive Jun. 6, 2006
7048070 Quick coupler assembly with dual hook members May. 23, 2006
7025008 Agricultural implement hitch Apr. 11, 2006
6789746 Connecting device connecting a spray boom to a chassis of an agricultural sprayer and sprayer equipped with such a connecting device Sep. 14, 2004
6752220 Farm equipment hitch Jun. 22, 2004
6112678 Planting machine with lifting means for lifting and carrying planting units with even distribution of units weight along the machine Sep. 5, 2000
6062321 Lifting device, particularly a front lift for an agricultural tractor or the like May. 16, 2000
5901792 Vertically adjustable hitch May. 11, 1999
5762147 Tractor front mount for implement attachment and use Jun. 9, 1998
5404958 Lifting structure for an agricultural tractor Apr. 11, 1995
5343958 Agricultural fertilizer applicator including self-leveling wagon hitch Sep. 6, 1994
RE33822 Hinge-type offset wheel harrow Feb. 18, 1992
4844175 Tractor tiller hitch Jul. 4, 1989
4696349 Farm implement with frame connected thereto by linkage mechanism Sep. 29, 1987
4531757 Tractor hitch arrangement Jul. 30, 1985
4440415 Hydraulic lift arm assembly mounting arrangement Apr. 3, 1984
4408777 Hitch mechanism Oct. 11, 1983
4393943 Telescoping carrier for forestry equipment Jul. 19, 1983
4391334 Hitch assembly Jul. 5, 1983
4308919 Hinge-type offset wheel harrow Jan. 5, 1982
4239086 Lifting mechanism with cam Dec. 16, 1980
4133391 Folding flexible undercutter plow Jan. 9, 1979
4131221 Planting and fertilizing apparatus Dec. 26, 1978
4087111 Load transfer apparatus for use between a tractor hitched to a trailer May. 2, 1978
4078823 Vertically adjustable trailer hitch Mar. 14, 1978
4066131 Hitch assembly for garden tractor and independently operable ground tiller Jan. 3, 1978
4055222 Earth moving implement with adjustable wheel assembly Oct. 25, 1977
4019755 Hitch assembly for mounting a transverse beam on a three-point hitch Apr. 26, 1977

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