Latest Inventions, Goods, Services
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2020
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Invention
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Backdraft damper having damper blades with opposed movement linkage. A backdraft damper for permi... |
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2019
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Invention
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Damper with integrated blade stop.
A damper comprises a generally rectangular frame extending be... |
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2015
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Invention
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Counterweighted backdraft damper blade with improved airflow profile. A backdraft damper for perm... |
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2014
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Invention
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Damper with integrated blade stop. A damper comprises a generally rectangular frame extending bet... |
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1995
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G/S
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Thermally insulated dampers, air-foil control dampers, back draft dampers and fixed blade louvers. |
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