Impact hammer system

A device for saving energy by reducing a power requirement of an impact hammer, the device comprising:

• a spindle adapted for rotational movement, the spindle comprising:
• a gear reducer;
• a multiple roller swing arm comprising:
• a first end, the first end comprising a first swing arm to piston engagement roller;
• and
• a second end, the second end comprising a second swing arm to piston engagement roller;
• and
• a piston comprising a piston contact surface adapted to contact the first swing arm to piston engagement roller such that rotation of the multiple roller swing arm causes the piston to move in a first direction along a linear path, the piston interacting with an energy storage medium when the multiple roller swing arm moves the piston in the first direction causing energy to be stored in the energy storage medium, the energy storage medium being a compound spring assembly, the compound spring assembly being a plurality of spring stacks, the plurality of spring stacks being a plurality of offset and counter sunk springs stacked in series, the plurality of offset and counter sunk springs stacked in series allowing for maximum use of spring deflection while minimizing spring free length;
• wherein continued rotation of the multiple roller swing arm causes the first swing arm to piston engagement roller to lose contact with the piston contact surface allowing the plurality of offset and counter sunk springs stacked in series of the compound spring assembly to urge the piston in a second direction opposite the first direction allowing the piston to strike an anvil impact surface for a first strike during a single rotation of the spindle;
• wherein continued rotation of the multiple roller swing arm causes the second swing arm to piston engagement roller to make contact with the piston contact surface causing the piston to move in the first direction along the linear path, the piston interacting with the compound spring assembly when the multiple roller swing arm moves the piston in the first direction causing energy to be stored in the compound spring assembly;
• and
• wherein continued rotation of the multiple roller swing arm causes the second swing arm to piston engagement roller to lose contact with the piston contact surface allowing the plurality of offset and counter sunk springs stacked in series of the compound spring assembly to urge the piston in a second direction opposite the first direction allowing the piston to strike the anvil impact surface for a second strike during the single rotation of the spindle.