Rotary punch and punch pin holder
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United States of America Patent
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app pub date -
Nov 4, 2004
filing date -
May 6, 2002
priority date (Note) -
Abandoned
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Abstract
The invention provides a rotary punch assembly for punching successive sheets of paper, the assembly comprising a first punch pin roller and a second roller which form a nip therebetween. The first punch pin roller has a plurality of punch pins protruding therefrom and is driven, while the second roller has a resilient surface and is freely rotating. As a sheet is passed through the nip between the rollers, the punch pins penetrate the paper as the pins work against the resilient surface of the second roller to pierce the holes.
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