Method and apparatus for bending elongated materials
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United States of America Patent
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-
Apr 1, 1980
Grant Date -
N/A
app pub date -
Jun 22, 1978
filing date -
Jun 22, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure relates to a method of bending elongated materials such as pipe by applying a compressive primary bending force to the material at locations on either end of the portion of the material to be bent and locally stimulating bending of that portion of the material by the application of heat or a secondary bending force. The end portions of the materials are engaged by clamps, each clamp having an arm extending normal to the principle axis of the material. The compressive primary bend force is applied by exerting a force on locations on the arms displaced from the principal axis of the material, which force tends to draw the ends of the arms together.
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