Patent ID: 8544557

Claim:
A pivot limiting device for an agricultural implement, the agricultural implement including a first frame section, a second frame section pivotally coupled to the first frame section at a pivot location, a first ground-engaging tool coupled to the first frame section, and a second ground-engaging tool coupled to the second frame section, the pivot limiting device comprising: a compression structure comprising a housing comprising an interior portion containing a spring compressed to a preset load, the compression structure coupled to the first frame section with the spring positioned within the first frame section; and a plunger comprising a first portion positioned adjacent the second frame section and a second portion positioned adjacent the compression structure to move relative thereto between a first position placing no additional compression on the spring when the second frame section pivots in a first direction at the pivot location and contacts the first portion of the plunger with a first force that is less than or equal to the preset load, and a second position placing the spring under further compression and thereby limiting pivotal movement of the second frame section relative to the first frame section when the second frame section pivots in the first direction at the pivot location and contacts the first portion of the plunger with a second force that is greater than the preset load.