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US 6,719,213 B1Granted
Spray boom
OwnerEdward P. Fergusoninventor
Life of this patent
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OwnerEdward P. Fergusoninventor
Estimating the term…
An agricultural boom is made up of two sections connected together, including an inner boom section and an outer boom section that are joined together with a hinge assembly in mid portions of the boom. The outer boom section is mounted to the inner boom with a linkage and control cylinder that provides for a knee action, that permits the outer boom section to be raised and lowered. The boom sections are both mounted about upright axes, and are supported against downward loads by separate pairs of cables that have ends joined at the base of the respective boom section at spaced points and connected to the outer or free ends of the respective boom sections at common points. The cables permit the boom sections to pivot about their respective upright axes with one of the cables carrying tension loads and causing the outer or free ends of the boom sections to raise while the other cable becomes slack.
An agricultural sprayer boom comprising an inner boom section and an outer boom section connected together in a mid portion, and in an operating position the inner and outer boom extending along the same longitudinal axis horizontally extending, a plate fixed to an outer ends of the inner boom section, a vertical pivot transverse to the longitudinal axis between the plate and the outer boom section for permitting the outer boom section to pivot about a vertical axis, a second vertical axis pivot between the plate and the outer boom section, and a linkage to normally retain the outer boom section in a working position, and permit movement of the outer boom section about the second vertical axis pivot when a horizontal load is applied to an outer end of the outer boom section.
An agricultural sprayer boom comprising an inner boom section and an outer boom section connected together in a mid-portion, a support frame for supporting the inner end of the inner boom section, a vertical pivot between an outer end of the inner boom section and a plate fixed to an inner end of the outer boom section for permitting the outer boom section to pivot about a vertical pivot axis, an inner end of the inner boom section having a pivot bracket mounted thereon, for pivotally mounting the boom about a generally horizontal axis relative to the support frame, an upright support connected to the second plate at the inner end of the outer boom section, said upright support extending upwardly from the outer boom section, and having a cross member generally perpendicular to the longitudinal axis of the outer boom section at an upper end of the upright support, and a pair of elongated flexible links, one at each end of said cross member on the upright support spaced laterally outwardly from the outer boom section, said elongated flexible links extending to connect to the outer boom section at a position spaced outwardly from the vertical pivot.
An agricultural spray boom assembly comprising an inner boom section and an outer boom section, the outer boom section being mounted to an outer end of the inner boom about a generally horizontal axis, an upright support mounted at the outer end of the inner boom section, said support having a cross member at an upper end thereof that extends generally perpendicular to a longitudinal axis of the outer boom section, and a pair of elongated flexible tension carrying members from the opposite ends of the cross member being connected to the outer boom section at a location spaced from the outer end of the inner boom section, and at a substantially common attachment point to provide the flexible tension carrying members for resisting downward pivoting of the outer end of the outer boom section.
Dependencies are inferred from the claim text.