High efficiency solar powered fan

Details High efficiency solar powered fan High efficiency solar powered fan

2007-08-22

2010-02-16

McAllister, Steven B. (Department: 3749)

Ventilation

Having forced recirculation

C454S230000, C454S900000, C416S063000, C416S246000, C136S245000

Reexamination Certificate

active

07662035

ABSTRACT:
Highly efficient ventilation fans for exhausting air out from underneath roofs, and for being portable in use and application. The fan can include optimized airflow blades having a twisted configuration that can move at a rotational speed operation of up to approximately 500 rpm. The approximately 15 inch diameter twisted blades can be premolded on a hub that together form a single molded unit of plastic. They can also be fabricated using metal. The unit can be mounted in an exhaust outlet having a conical diffuser on or adjacent to a roof. Alternatively, the fan can be portable for use most anywhere there is a need for ventilation and moving of air. The blades can rotate by a solar powered motor, where the blades and motor can generate up to approximately 1040 cfm while using no more than approximately16Watts.

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