Chain hoist
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Oct 21, 1999
filing date -
Nov 5, 1998
priority date (Note) -
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Abstract
A chain hoist, includes a chain which is trained over first and second sprockets defining a movement path for the chain, with the first sprocket being connected to a load-bearing member, and with the second sprocket being part of a drive unit for operating the chain. In order to effectively prevent chain vibrations caused by the so-called polygon effect, the chain hoist includes a damping unit which is positioned in the movement path of the chain for damping vibration.
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