×

Coulter beam mounting assembly including articulate joint means

  • US 4,155,316 A
  • Filed: 03/16/1978
  • Issued: 05/22/1979
  • Est. Priority Date: 03/29/1977
  • Status: Expired due to Term
First Claim
Patent Images

1. A seed or seed and fertilizer drill comprising:

  • a frame;

    a series of coulters mounted on the frame at positions which are spaced apart in a direction transverse to the direction of operative forward motion of the drill;

    a beam to actuate the coulters, the beam extending transverse to the direction of operative forward motion of the drill;

    mounting means for the beam whereby the beam is mounted on the frame so that the beam can be raised and lowered relative to the frame;

    thrust applying means to apply a down thrust to the beam; and

    thrust transmitting means connected between the beam and the coulters and capable of transmitting a downward thrust from the beam to the coulters;

    characterized in thatsaid mounting means for the beam comprises articulated joint means permitting, during use, the ends of the beam to rise and fall independently of each other relative to the frame.

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