Pre-stretch web dispenser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 13, 2001
Grant Date -
N/A
app pub date -
Sep 10, 1999
filing date -
Sep 10, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pre-stretch wrapping device consisting of a base, a pre-stretch station, a vertical drive, and a rotatable load causes a pre-stretched web to become wrapped around the load under controlled tension. The pre-stretch station comprises a pair of pre-stretch rollers located on a pivotal frame, a spring which opposes the pivotal movement of the frame relative to the base, a roller motor, and a sensor located between the frame and the base. The sensor monitors relative movement of the frame from the base and a controller in response to signals from the sensor controls the operation of the roller motor.
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