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US 5,076,368 AGranted
Reversible plow
OwnerDanny H. Harrellinventor
Life of this patent
Estimating the term…
Abstract
A reversible plow comprising a three point hitch, a pivotally mounted tool bar provided with a plurality of adjustable plow gangs, and gauge wheels wherein said tool bar can be shifted from left of center to right of center, and back, by a hydraulic piston such that the plowed ground can be directed in a desired direction.
Claims10
An in-furrow reversible plow for being towed by a tractor, comprising:
- (a) a transversely disposed tow bar;
- (b) a main frame connected to said tow bar for pivoting about a central longitudinal axis of said plow, said main frame extending rearwardly of said tow bar;
- (c) a cylinder and piston rod connected between said tow bar and said frame for tilting said frame about said central axis to a tilted position in which the frame is inclined to one side with respect to said tow bar when said piston is extended and to a tilted position in which said frame is tilted about said central axis to a position inclined toward the other side of said central axis when said piston is retracted;
- (d) a tool bar pivotally carried by said frame for pivoting about an upright axis rearwardly of said tow bar;
- (e) means for shifting said tool bar from an angular position with respect to said central longitudinal axis whereby the forward portion of said tool bar is on one side of said frame to an angular position with respect to said central longitudinal axis whereby the forward portion of said tool bar is on the other side of said frame;
- (f) bidirectional moldboards suspended below said tool bar, each moldboard extending transversely outwardly on both sides of said tool bar whereby one side end of each moldboard is forwardmost on one side for engaging the ground to be plowed when said tool bar is in one position and the other side end of each moldboard is forwardmost for engaging the ground to be plowed when the tool bar is in its other position;
- (g) spaced side hitches on said tow bar for being respectively secured to the side hitches of said tractor so that said tool bar is held in a horizontal position when said tractor is horizontal and said tow bar is tilted to the extent that said tractor is tilted when one wheel of the tractor is riding in a previously plowed furrow in the ground;
- and
- (h) the stroke of said piston being sufficient to cause said main frame to be pivoted about said longitudinal central axis to a horizontal position when either side of said tractor has a wheel riding in said previously plowed furrow.
6 more elements
Dependencies are inferred from the claim text.