A hydraulic tool cutting dies including first and second cutting dies. The first cutting die has a first mounting section and a first cutting edge. The first mounting section is sized and shaped to removably attached to a hydraulic tool. The second cutting die has a second mounting section and a second cutting edge. The second mounting section is sized and shaped to removably attached to the hydraulic tool. The first cutting die includes a post extending past the first cutting edge and the second cutting die includes a post receiving area which has a different cross-sectional shape than the post.

A cutting system comprises a pump adapted to increase the pressure of a hydraulic liquid, a working head which can be positioned distanced from the pump and having two jaws which can be displaced between an open position and a closed position for carrying out the cutting, a pressure flexible tube connected between the pump and the working head, a hand-held remote control for actuating and controlling the pump from a distance, a cutting detector connected to the working head to detect the completion of the cutting, an actuation communication assembly adapted to provide pump actuation signals from the remote control to the pump, a cutting confirmation communication assembly adapted to provide cutting completion information from the cutting detector to the user, wherein the actuation communication assembly comprises a wireless connection and also the cutting confirmation communication assembly comprises a wireless connection.

A working head for a hydrodynamic cutting tool, of the type comprising: a working head, an electro-hydraulic pump adapted to increase the pressure of a hydraulic liquid, and a pressure tube connected between the pump and the working head to communicate the pressure of the hydraulic liquid from the pump to the working head, wherein a working head is removably connectable to the pressure tube and comprises two jaws movable, in response to the increase of the hydraulic liquid pressure, between an open position and a closed position to perform the cutting, a cutting detector configured to detect the completion of the cutting, a cutting confirmation transmitter connected to the cutting detector and configured for a wireless transmission of a cutting completion confirmation signal to a cutting confirmation receiver of the cutting tool.

A shearing implement for use with an excavator has a thumb having a grasping side and a cutting side and being pivotably attachable to the boom. A shearing blade member is pivotably attached to the cutting side of the thumb. A linear actuator has a first end attached to the shearing blade member and a second end attachable to the boom or the thumb so that extension and retraction of the linear actuator causes the shearing blade member to rotate relative to the thumb.

A shearing implement for use with an excavator has a thumb having a grasping side and a cutting side and being pivotably attachable to the boom. A shearing blade member is pivotably attached to the cutting side of the thumb. A linear actuator has a first end attached to the shearing blade member and a second end attachable to the boom or the thumb so that extension and retraction of the linear actuator causes the shearing blade member to rotate relative to the thumb.

Embodiments of the invention provide a hydraulic tool including a hydraulic actuator cylinder, a piston, a fluid reservoir, a pump, a regeneration check valve, and a pilot-operated valve. The regeneration check valve is disposed in a regenerative extension fluid path that fluidly couples a first and second chamber of the hydraulic actuator cylinder. The pilot-operated valve is disposed in a power extension fluid path that fluidly couples the second chamber to a fluid reservoir.

A shearing implement for use with an excavator is disclosed. The shearing implement comprises a thumb having a grasping side and a cutting side and being pivotably attachable to the boom. A shearing blade member is pivotably attached to the cutting side of the thumb. A linear actuator has a first end attached to the shearing blade member and a second end attachable to the boom or the thumb so that extension and retraction of the linear actuator causes the shearing blade member to rotate relative to the thumb.

This application details a configuration for an in-line tendon shear, which may also be referred to as an in-line pocket shear. Exemplary embodiments may improve upon existing cutters and shears for tendons in post-tensioning operations by being advantageously more compact, efficient, can cut in multiple planes, such as horizontal and vertical planes, and may include additional other benefits. The in-line tendon shear has components that are aligned with a central axis of a tendon.

This application details a configuration for an in-line tendon shear, which may also be referred to as an in-line pocket shear. Exemplary embodiments may improve upon existing cutters and shears for tendons in post-tensioning operations by being advantageously more compact, efficient, can cut in multiple planes, such as horizontal and vertical planes, and may include additional other benefits. The in-line tendon shear has components that are aligned with a central axis of a tendon.

Embodiments of the invention provide a hydraulic tool including a hydraulic actuator cylinder, a piston, a fluid reservoir, a pump, a regeneration check valve, and a pilot-operated valve. The regeneration check valve is disposed in a regenerative extension fluid path that fluidly couples a first and second chamber of the hydraulic actuator cylinder. The pilot-operated valve is disposed in a power extension fluid path that fluidly couples the second chamber to a fluid reservoir.