Tenter clips for use in stretching thermoplastic film in a tenter frame
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United States of America Patent
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May 23, 1995
Grant Date -
N/A
app pub date -
Mar 1, 1994
filing date -
Mar 1, 1994
priority date (Note) -
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Abstract
A tenter clip is provided for gripping a web of thermoplastic film between the curved surface of a toggle arm and an anvil surface which is tapered at each of its ends. The surface configurations of the toggle arm and anvil define effective surfaces for gripping the film while allowing the film to stretch under these surfaces. Beads are formed at the edges of the web during stretching. These beads wedge into substantially V-shaped gripping regions defined by the toggle arm and anvil to assist in the stretching operation.
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