Continuous platform cutting method
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United States of America Patent
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-
Dec 30, 2003
Issued Date -
N/A
app pub date -
May 18, 1999
filing date -
Jul 23, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for shaping a slab of polyurethane foam (80) cuts portions of the foam material from one surface. A moving patterned platform (32) is interposed in a gap formed between a compression roller (56) and a drive roller (18) and defines at least one recess (36). The slab is introduced into the gap and foam material is compressed into the recess. At least a portion of the compressed material within the recess is then cut from the surface of the slab by a blade (76) just as the slab emerges from the gap to produce a profile-cut surface with a shaped portion corresponding to the shape of the recess in the patterned platform.
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