Method and apparatus for cutting blocks and panels of cellular plastic
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United States of America Patent
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-
Jul 6, 1999
Issued Date -
N/A
app pub date -
Nov 21, 1996
filing date -
Jul 27, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for cutting any one of blocks and panels of cellular plastics into various shapes. The cellular plastic is held on a stationary platform around which a movable frame is affixed to two slides. The movable frame moves on two horizontal rails to effect cutting in the x-direction. Cutting is done with a hot wire affixed to two slides which move together vertically on vertical rails along the moveable frame to effect cutting in the y-direction. Stepping motors are driven by a computer to provide for displacement of the hot wire. Each motor includes a pinion which is mounted on a shaft directly engaging gear-racks parallel to the rails, to effect cutting of various shapes defined by the equation y=f(x).
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