Patent ID: 8176993

Claim:
A ripper plough for soil tillage comprising: a body having an upper mounting attachment end, a lower soil engaging end, a leading edge, a trailing edge, and opposed lateral sides; a pair of ploughshare supports extending from each lateral side of the body, from the leading edge and diverging toward the trailing edge of the ripper plough, to form an inwardly facing combined plough angle therebetween of between 40 degrees and 55 degrees, and each of the pair of ploughshare supports extending outwardly and downwardly, relative to the body, to form a thrust angle, formed between an inwardly and downwardly facing surface of the respective ploughshare support and the body, of between 40 degrees and 50 degrees; and ploughshares mounted on the ploughshare support, the ploughshares having a length between a leading edge and a trailing edge of at least 1.5 feet, being spaced apart at the trailing edge by at least two feet, and providing an average lift angle of upward lift of between 10 degrees and 15 degrees, and the average lift angle being an average angle of upward lift that the ploughshares impart to soil.