Enovate Systems Limited

Paul Anderson

Jeffrey Charles Edwards

A shear bladefor a downhole apparatuscomprises a body portionand a first cutting edgeprovided at a cutting end of the shear blade, the first cutting edgecomprising a sharp edgelocated at or near a central region of the first cutting edgeand at least one blunt edgelocated at or near at least one outer portion of the first cutting edge. In an embodiment, the shear bladehas a recess or slotwhich is provided at or near a central region of a shear faceand which extends partially between a first sideand a second sideand which is generally aligned with the sharp edgeof the first cutting edgein a plane substantially parallel to an axis of the throughbore and perpendicular to the first cutting edge

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Aberdeen, United Kingdom

Paul Anderson