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Lightweight concave having removable grids

  • US 5,613,907 A
  • Filed: 09/22/1995
  • Issued: 03/25/1997
  • Est. Priority Date: 09/22/1995
  • Status: Expired due to Fees
First Claim
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1. A concave for a rotary crop processing unit for an agricultural combine, the concave comprising:

  • a frame having at least two longitudinally extending curved members that are coupled to one another by two laterally extending members, the frame is provided with a first mounting assembly; and

    at least one replaceable grid being releasably mounted to the frame by the first mounting assembly engaging the grid, the grid is provided with a plurality of longitudinally extending curved rods and a plurality of laterally extending straight bars, the straight bars are provided with an outer surface, at least one of the rods and the straight bars are provided with projections and are projection welded to one another.

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