05758573 is referenced by 2 patents and cites 18 patents.

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.

Title
Paperboard carton piercing, crushing and recycling system
Application Number
8/663396
Publication Number
5758573
Application Date
June 13, 1996
Publication Date
June 2, 1998
Inventor
Wilfred A Cote
Goshen
NY, US
Fred Karsa
Wantage
NJ, US
Richard J Connor
Bloominburg
NY, US
Michael Sinocchi
Suffern
NY, US
Donald E Keeler
Sussex
NJ, US
Agent
Michael J Doyle
Assignee
International Paper Company
NY, US
IPC
B30B 3/04
B30B 9/20
B30B 15/14
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