Gripper arm assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 20, 2001
Grant Date -
N/A
app pub date -
Feb 4, 1999
filing date -
Feb 4, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An arm assembly for gripping a sheet of material including jaws and a sensor assembly for detecting a change in the thickness of the material gripped between the jaws. A sensor is mounted to the side of the arm and a lever is operatively associated with the jaws for pivotal movement towards and away from the sensor in response to a change in the thickness of the material gripped between the jaws. In one embodiment, a magnet is mounted to the tip of the lever and the sensor is a Hall-effect sensor which is responsive to a change in the distance between the sensor and the magnet.
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