Patent ID: 6742448
Filing Date: 2004-06-01
Classification: B30B

Abstract:
In a waste compactor having a waste chamber with a front and a back, a hydraulic ram powered by an electric motor, a platen retracted and extended by said ram, a loading door and an unloading opening, a dump tray, and a chamber door on said front of said chamber, compaction and ejection control apparatus comprising:a plurality of relays having a plurality of inputs and a plurality of outputs; an electromagnetic interlock and sensor switch arranged to interlock said loading door and said chamber door; an off/on/start switch; a mode select switch; at least one control switch having raise contacts, and start contacts; a retract solenoid; an extend solenoid; an interlock solenoid connected to said electromagnetic interlock; and a motor starter; each respective one of said switches being connected to a respective one of said inputs and each one of said solenoids and said starter being connected to one of said outputs; said plurality of relays being interconnected to prevent hazardous baler operations including undesired ram extension or retraction when either of said chamber door or loading door is improperly positioned for such operation, and undesired continued ram operation in certain of selected modes if the operator does not have manual contact with said control switch.