US Patent 9447790 Cross-flow fan

Patent 9447790 was granted and assigned to Daikin Industries, Ltd. on September, 2016 by the United States Patent and Trademark Office.

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Patent Citations Received

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US Patent 11873831 Double inlet backward curved blower

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Patent abstract

A cross-flow fan includes a disc-shaped or circular annular support plate, plural blades extending in a lengthwise direction from the support plate, and an auxiliary ring. The auxiliary ring has a ring portion that is positioned on a lengthwise direction intermediate section of the plural blades and is disposed on an outside of outer ends of the plural blades, and plural connection portions that extend from the ring portion as far as spaces between adjacent blades of the plural blades and are joined to the blades in the spaces between adjacent blades.

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Patent Inventor Names

Hideshi Tanaka0

Kazuhiro Matsumoto0

Kazuya Nishimura0

Satoshi Nakai0