Air regulating device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4452391
SERIAL NO

06323411

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An automatic air regulating device for use in a forced air heating or cooling system whereby air vents or ducts leading to various rooms within a building may be automatically opened or closed to conserve energy. The automatic air regulating device of the present invention utilizes airfoil shaped dampers rotatable between open and closed positions within the building's air ducts. This airfoil shape thus provides for efficient and inexpensive operation of the dampers by utilizing the forced air flowing through the system for its operating forces. The dampers are further controlled by operation of restraining means which establish opening and closing conditions of the dampers in response to programmed or timed parameters set according to desired occupancy or use patterns within the building.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ELLSWORTH CHOW & MURPHY INC A CORP OF CA1748 HAMILTON PALO ALTO CA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chow, Vincent Y S Hanover Park, IL 2 48

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