Invention Grant
US08291844B2 Liquid distribution apparatus employing a check valve for distributing liquid into a seed furrow 失效
液体分配装置采用单向阀将液体分配到种子沟中

  • Patent Title: Liquid distribution apparatus employing a check valve for distributing liquid into a seed furrow
  • Patent Title (中): 液体分配装置采用单向阀将液体分配到种子沟中
  • Application No.: US13109147
    Application Date: 2011-05-17
  • Publication No.: US08291844B2
    Publication Date: 2012-10-23
  • Inventor: Paul E. Schaffert
  • Applicant: Paul E. Schaffert
  • Agency: Dorsey & Whitney LLP
  • Main IPC: A01C5/00
  • IPC: A01C5/00
Liquid distribution apparatus employing a check valve for distributing liquid into a seed furrow
Abstract:
Aspects of the present invention involve an extension adapted to extend from a planter, such as the seed tube portion of the planter, into a seed furrow in order to engage seeds being deposited therein, where such engagement may involve deflecting the seeds toward the vertex region of the furrow and/or firming the seeds in the furrow. The extension includes or supports a fluid distribution arrangement such as a hose or the like, which may be separate or integral with the liquid supply hose of a planter. The fluid distribution arrangement is adapted to supply fluid, such as liquid fertilizer, insecticide, water, etc., to the furrow. A valve is provided in the fluid flow path in the region of the fluid distribution arrangement to control the distribution of fluid to the furrow. The valve may be a check valve that allows fluid flow therethrough when fluid pressure exceeds a value such that the valve opens, and prevents fluid flow when the pressure decreases below the valve activation pressure.
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