Presses – Automatic or material triggered control – Of actuating means
Reexamination Certificate
2006-11-06
2009-02-24
Nguyen, Jimmy T (Department: 3725)
Presses
Automatic or material triggered control
Of actuating means
C100S052000, C100S099000, C100S342000, C100S09800R, C100S240000
Reexamination Certificate
active
07493854
ABSTRACT:
The present disclosure concerns a jam detection and safety system for machines prone to jamming, such as a baler. In particular embodiments, the system is implemented in a horizontal baler having a shear bar and a hydraulic ram that advances material being baled past the shear bar into a compression chamber. The system includes a strain gage mounted on the shear bar and a controller that is electrically connected to the strain gage. The controller receives strain signals from the stage gage and compares the strain of the shear bar to a predetermined strain threshold corresponding to a jamming condition. If the strain exceeds the predetermined threshold, the controller automatically deactivates the ram, such as by disconnecting line power from the baler and/or by turning off the control power of the baler.
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Etherton John R.
McKenzie, Jr. Eugene Anthony
Means Kenneth
Newbraugh Brad
Powers, Jr. John R.
Klarquist & Sparkman, LLP
Nguyen Jimmy T
The Government of the United States of America as represented by
West Virginia University
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