×

Crust fracturing implement

  • US 7,624,814 B2
  • Filed: 01/31/2006
  • Issued: 12/01/2009
  • Est. Priority Date: 01/31/2006
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for fracturing a crust on an agricultural field comprising:

  • a tool bar;

    a support for attaching to the tool bar;

    a coil spring engaging the support wherein the coil spring urges the support downward;

    an axle rotatably supported by the support proximate a distal end thereof; and

    a plurality of discs non-rotatably attached to the axle and wherein each disc comprises a plurality of spaced apart teeth about a perimeter of each disc and wherein the teeth comprise convex surfaces and concave surfaces that converge to distal ends and wherein as the plurality of discs rotate about the support, the convex surfaces penetrate and fracture the crust.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×