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Class Information
Number: 172/679
Name: Earth working > With draft detail > Adjustable
Description: Apparatus wherein the means for hitching the implement to the propelling means is adjustable with respect to either the implement or the propelling means.










Sub-classes under this class:

Class Number Class Name Patents
172/680 Vertical 36


Patents under this class:

Patent Number Title Of Patent Date Issued
7478823 Drawbar clevis assembly Jan. 20, 2009
7174966 Process of setting the length of an upper steering arm Feb. 13, 2007
7093380 Mounting of an accessory on an ATV Aug. 22, 2006
6966388 Offset hitch Nov. 22, 2005
6742600 Implement coupler Jun. 1, 2004
6691794 Planter hitch locking and alignment apparatus Feb. 17, 2004
6679339 Implement lift and level system with a front mounted direct coupled rockshaft Jan. 20, 2004
6585056 Machine with a multifunctional chassis for working the soil in tree or shrub plantations Jul. 1, 2003
6430908 Self-leveling hitch and clevis assembly Aug. 13, 2002
6293351 Rear mounted three point hitch adapter for motor vehicles Sep. 25, 2001
6056069 Latch for an adjustable link assembly May. 2, 2000
5971082 Hitch assembly with variable pivot point Oct. 26, 1999
5720352 Hitch for two unit planter Feb. 24, 1998
5335856 Air boom sprayer trailer hitch and suspension Aug. 9, 1994
5076369 Length-adjustable upper steering arm for a three-point coupling device Dec. 31, 1991
4662646 Trailing mower and drawbar articulation May. 5, 1987
4579363 Easily releasable mounting for supporting powered equipment between a tractor and trailer Apr. 1, 1986
4558882 Seeder cart attachment to agricultural implements Dec. 17, 1985
4478032 Dual implement hitch Oct. 23, 1984
4463811 Implement with laterally movable frame structure Aug. 7, 1984
4455034 Transport device for pull-type swathers and the like Jun. 19, 1984
4445706 Tandem hitch apparatus May. 1, 1984
4418517 Actuating mechanism for harvester transport lock Dec. 6, 1983
4418516 Transport lock actuator Dec. 6, 1983
4418518 Mechanism for spring loading a transport lock Dec. 6, 1983
4415174 Multiple implement towing apparatus Nov. 15, 1983
4369846 Tilling machine for sandy soil Jan. 25, 1983
4262921 Tandem implement hitch Apr. 21, 1981
4223741 Vehicle for agricultural use with transport wheels Sep. 23, 1980
4180133 Guidance system for towed vehicles Dec. 25, 1979
4168750 Agricultural roller Sep. 25, 1979
4114695 Rotary harrow with pivotable coupling assembly Sep. 19, 1978
4109729 Device and method for diverting rolls of sod delivered from conventional sod cutting apparatus Aug. 29, 1978
4102404 Articulated cultivator Jul. 25, 1978
4060254 Implement re-alignment hitch Nov. 29, 1977
4044842 Flexible multi-section implement Aug. 30, 1977
4019755 Hitch assembly for mounting a transverse beam on a three-point hitch Apr. 26, 1977











 
 
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