Scarifying rake drag

• US 7,478,682 B1
• Filed: 11/16/2004
• Issued: 01/20/2009
• Est. Priority Date: 09/30/2003
• Status: Active Grant

• Current Assignee: ABI Attachments Incorporated
• Original Assignee: Absolute Innovations, Inc.
• Inventors: Keigley, Kevin V.
• Primary Examiner(s): Will; Thomas B
• Assistant Examiner(s): TORRES, ALICIA M
• Application Number:
  US10/990,330
• Time in Patent Office: 1,526 Days
• Field of Search: 172195-200, 172663-668, 172/449, 172/445.1, 172/777, 172/145
• US Class Current: 172/145
• CPC Class Codes: A01B 31/00 Drags graders for field cultivators graders in general E02F
• CPC Class Codes: A01B 35/04 drawn by animal or tractor or man-power
• CPC Class Codes: A01B 49/02 with two or more soil-working tools of different kind

Abstract

A soil working implement for being dragged behind a towing vehicle. The implement includes a hitch part and a soil working part. The soil working part may be pivoted about the hitch part by extending or retracting a longitudinal linkage member interposed between the hitch part and the soil working part.

Claims

1. A soil working implement adapted for being pulled behind a tow vehicle, said implement comprising a soil working part for engaging the soil, a hitch part pivotally connected to said soil working part and including a hitch adapted for connection to said tow vehicle, and extensible linkage connected to said soil working part, said extensible linkage having an extended position and a retracted position, said soil working part pivotally shiftable about said hitch part in response to the shifting of said extensible linkage between its said extended and retracted positions, said soil working part including a transverse frame member, a plurality of transversely spaced downwardly projecting scarifying teeth carried by said frame member for penetrating the soil, a plurality of transversely spaced tines carried by said frame member for engaging said soil, said hitch part including a hitch bar carrying said hitch and being pivotally connected to said frame member, said teeth located between said hitch and said tines, said extensible linkage pivotally connected at one end to said frame member and at the other end to said hitch bar, the angle of engagement of said teeth and tines with said soil being adjustable by shifting said extensible linkage between its extended and retracted positions.

2. The soil working implement of claim 1 wherein said scarifying teeth are removably carried by said frame member so as to permit only said tines to engage the soil.

3. The soil working implement of claim 1 wherein at least one of said teeth and tines constitutes means for supporting said implement upon the ground.