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AssigneeInternational Paper Company
InventorsDonald E. Keeler, Michael Sinocchi, Richard J. Connor, Fred Karsa, Wilfred A. Cote
Estimating the term…
A paperboard carton piercing-crushing and recycle system and apparatus which includes a safety operated door which controls motor operated carton piercing and crushing rolls in order to crush paperboard cartons for disposal. The safety operated door is provided with a magnetic switch which controls two different timed electrical circuits. One circuit controls an electronic safety latch mechanism which prevents the carton disposal door from opening during operation of motor driven carton crushing rolls and one timed circuit operates the motor during the time that the electronic safety latch mechanism prevents the door from operating. When the motor circuit stops, the timer to the electronic safety latch mechanism releases the safety latch so that the door can be opened. Thus, the system is safe and will not operate if the carton disposal door is open.
A paperboard carton piercing and crushing device which comprises, a housing, said housing including a carton insertion portion, a piercing and crushing portion, and a crushed carton reception portion, said carton insertion portion including an upper end wall, said carton insertion portion including a door in said upper end wall through which a carton to be pierced and crushed is inserted, an electrical switch, said switch carried by at least one of said door and said upper end wall, said switch controlling an electronic door latch and an electric motor, said electric motor driving a pair of rolls which pierce and crush said carton during operation of said motor, said rolls located beneath said carton insertion portion, said electronic door latch preventing opening of said door during operation of said motor and rotation of said rolls, each of said rolls including spaced rows of piercing pins on an outer surface thereof.
Dependencies are inferred from the claim text.