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Ventilation > Having Forced Recirculation > Forced Recirculation Alone Forced Recirculation AloneForced Recirculation Alone patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.03/15/07 - 20070060037 - Shroud for axial flow fan Disclosed therein is a shroud for an axial flow fan, which can fix and support the axial flow fan and a driving motor while surrounding the axial flow fan. The shroud for the axial flow fan includes a housing having a ventilation hole (10a) formed at the center thereof and ... 06/15/06 - 20060128299 - Hidden ceiling fan A hidden ceiling fan includes a motor as a power source which has a top end fastened to a ceiling and a spindle connecting to a plurality of vanes. The bottom of the motor has a cover plate. There is a shield plate beneath the vanes to couple with at ... 09/15/05 - 20050202776 - Columnar air moving devices, systems and methods Air moving device includes a housing, an impeller in the housing for generating a downward air flow, and vanes in the housing in close proximity to and a selected distance below the impeller to straighten the air flow. The device produces an air flow that substantially remains in a column ... 07/28/05 - 20050164625 - Combination air purifier and air ventilator Disclosed is a combination air purifier and ventilator. The air purifier in accordance with the present invention includes a case being provided on a ceiling or a wall and having a fan therein, a first passage communicating with an outside, an inside of the case and an room, having an ... ### FreshPatents.com Support |