Abstract: A ladder for use with heavy machinery such as farm equipment, the ladder having platform steps, the ladder being convertible between a deployed position for supporting a person or other load, to a storage, scaffold, or ramp position in which the steps lie in a generally planar arrangement. When deployed, the ladder steps remain parallel to each other. The ladder includes two frames, the frames pivotably connected by a plurality of platform steps, one of the frames being pivotably attached to a piece of heavy machinery. The frame nest within one another in the storage configuration. The pivotable attachment to the heavy equipment may be wheels on the ladder frame that engage horizontal tracks on the heavy equipment, allowing the ladder to be lifted up, the frames nested, and the ladder in the storage configuration slid along the tracks and stored.

Abstract: Aspects of the disclosure relate to temporary storage systems for the temporary storage of agricultural grain products. The temporary storage systems include an enclosing retaining wall comprised of a plurality of free-standing wall sections. The enclosing retaining wall can include multiple free-standing wall sections arranged in a circular, oval, or substantially rectangular shape. Each free-standing wall section includes one or more corrugated panels coupled with one or more support structures. The support structures can be constructed from a rigid material and include ground supports, which permit the free-standing wall sections to maintain a predetermined angle based on the angle of repose of the agricultural products stored. Each corrugated wall panel includes a plurality of perforations and a plurality of corrugations configured to provide ventilation to the grain product, while maintaining the necessary rigidity to retain the loads imposed by the granular material.

Abstract: A ladder for use with heavy machinery such as farm equipment, the ladder having platform steps, the ladder being convertible between a deployed position for supporting a person or other load, to a storage, scaffold, or ramp position in which the steps lie in a generally planar arrangement. When deployed, the ladder steps remain parallel to each other. The ladder includes two frames, the frames pivotably connected by a plurality of platform steps, one of the frames being pivotably attached to a piece of heavy machinery. The frame nest within one another in the storage configuration. The pivotable attachment to the heavy equipment may be wheels on the ladder frame that engage horizontal tracks on the heavy equipment, allowing the ladder to be lifted up, the frames nested, and the ladder in the storage configuration slid along the tracks and stored.