Abstract: The invention may be described as a shear tool or concrete pulverizer retrofit method, a hybrid demolition machine, such as one resulting from such a method, and a demolition method that may be carried out using such a demolition machine.

Abstract: An auxiliary power unit excavator system comprises a vehicular base powered by a first internal combustion engine enabling excavator mobility, an excavator boom assembly disposed on a top side of the vehicular base, an auxiliary power unit assembly disposed on a top side of the vehicular base, a cab disposed above the vehicle base, and a second internal combustion engine powering a generator.

Abstract: The invention may be described as a shear tool or concrete pulverizer retrofit method, a hybrid demolition machine, such as one resulting from such a method, and a demolition method that may be carried out using such a demolition machine.

Abstract: The invention may be described as a shear tool or concrete pulverizer retrofit method, a hybrid demolition machine, such as one resulting from such a method, and a demolition method that may be carried out using such a demolition machine.

Abstract: The present invention is a magnetic lifting attachment to the boom structure and hydraulic system of a demolition machine, which includes a demolition tool selected from the group consisting of shearing jaws and a concrete pulverizer, and a hydraulic actuator adapted to actuate the demolition tool, the magnetic lifting attachment is attached to the boom structure and features a magnet and a hydraulic actuator adapted to move the magnet between a stored position and an active position with respect to the demolition tool by simultaneous movement of at least one of the jaws.