Punch system for perforating plastic sheets
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United States of America Patent
Stats
-
May 2, 1989
Grant Date -
N/A
app pub date -
Jul 16, 1984
filing date -
Jul 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A punch system for rigid and brittle plastic sheet materials such as polycarbonates comprising a punch body mounted in a carrier board and having an upwardly projecting head portion which defines the shape of the hole to be punched, a ring of high durometer urethane mounted on the punch head to serve as a stabilizer and stripper and a disk of high durometer urethane mounted on the under surface of the press platen directly opposite the punch to receive the punch head and the slug of punched material during the punching operation. The punch is used in combination with a steel rule die but can be used either with other punches or alone.
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