Patent ID: 6988775

Claim:
A method for scrapping a building comprising the steps of: a.) initially positioning a self-contained, self-propelled scrapping machine having a movable drive arm mounted thereon, with the drive arm having at least one of a breaking device and a clasping and crushing device attached thereto, at a ground floor of a building that is to be scrapped; b.) using the breaking device of the scrapping machine to form a movement hole in a floor of the building immediately above the floor at which the scrapping machine is currently positioned, through which movement hole the scrapping machine itself is capable of fitting for subsequent movement to the floor in which the movement hole has been made; c.) having the scrapping machine elevatingly move itself to the floor above which the scrapping machine is currently positioned through the movement hole in the floor above the scrapping machine which has been made in (b); d.) sequentially repeating steps (b) and (c) for each subsequent next upper floor of the building until the uppermost floor of the building has been reached and the scrapping machine is positioned thereon; e.) using the scrapping machine to scrap building structure at the floor of the building on which the scrapping machine is currently positioned by directing the scrapping machine to move to alternative positions on the floor wherein all building structure to be scrapped is reachable by the drive arm of the scrapping machine having the at least one of a breaking device and a clasping and crushing device attached thereto; f.) discharging debris from the building structure of the floor currently being scrapped to the floor below through the movement hole in the floor at which the scrapping machine is currently positioned; g.) having the self-propelled scrapping machine lower itself through the movement hole in the floor of the building at which the self-propelled scrapping machine is currently located and which has just been scrapped by the scrapping machine, to a floor below; h.) sequentially repeating steps (e) through (g) until the ground floor of the building has once again been reached, at which point the entire building will have been scrapped.