Rack and pinion wheel drive for an industrial sliding blade damper
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United States of America Patent
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Aug 19, 2008
Grant Date -
Nov 3, 2005
app pub date -
Apr 30, 2004
filing date -
Apr 30, 2004
priority date (Note) -
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Abstract
This invention discloses improvements to a damper of the type used in industrial applications to open and close ducts carrying noxious or corrosive materials, such as combustion by-products. The improvements include a linear rack and wheeled pinion system to raise and lower a damper blade plate and improvements to the seal cartridge to prolong the life of the seal membrane and to prevent galling between the blade plate and the seal cartridge or damper frame.
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