Patent ID: 7882906

Claim:
An up and down vibratory drilling and jarring tool comprising: a. a cylindrical outer housing having an upper end, a lower end, a longitudinal axis running between said ends, an outer diameter and an inner diameter; b. a cylindrical inner mandrel slidably disposed along the longitudinal axis of said outer housing, said inner mandrel having an upper end, a lower end, a longitudinal axis running between said ends, an outer diameter and an inner diameter; c. a first set of splines disposed longitudinally attached to and projecting radially inward from a portion of said inner diameter of said outer housing; d. a second set of mating splines disposed longitudinally attached to and projecting radially outward from a portion said outer diameter of said inner mandrel; e. a set of upper jars comprising an upper ring shaped structure, having an upper and a lower shoulders, attached to and projecting radially inward from the inner diameter of said outer housing and has a saw-tooth profile projecting axially downward from said lower shoulder and a lower ring shaped structure, having an upper and a lower shoulders, attached to and projecting radially outward from the outer diameter of said inner mandrel and has a mating saw-tooth profile projecting axially upward from said upper shoulder; and, f. a set of lower jars comprising an upper ring shaped structure, having an upper and a lower shoulders, attached to and projecting radially outward from the outer diameter of said inner mandrel and has a saw-tooth profile projecting axially downward from said lower shoulder and a lower ring shaped structure, having an upper and a lower shoulders, attached to and projecting radially inward from the inner diameter of said outer housing and has a mating saw-tooth profile projecting axially upward from said upper shoulder; g. wherein said first and second set of splines, upper and lower jars are spaced longitudinally apart so that said saw-toothed profiles of the upper jars are engaged, said splines and said lower jars are disengaged when the inner mandrel is shifted to an upward position in said outer housing; said first and second splines are matingly engaged, said upper jars and said are disengaged when the inner mandrel is shifted to an intermediate position in said outer housing, and, said saw-toothed profiles of the lower jars are engaged, said splines and said lower jars are disengaged when the inner mandrel is shifted to an downward position in said outer housing.