US 12,451,763 B1
Air flow powered electrical generator
Dennis Grieve, Star, ID (US)
Filed by Dennis Grieve, Star, ID (US)
Filed on May 4, 2022, as Appl. No. 17/736,992.
Claims priority of provisional application 63/184,234, filed on May 5, 2021.
Int. Cl. H02K 7/18 (2006.01); B60L 8/00 (2006.01); F03D 9/25 (2016.01); F03D 9/32 (2016.01)
CPC H02K 7/183 (2013.01) [B60L 8/006 (2013.01); F03D 9/25 (2016.05); F03D 9/32 (2016.05); F05B 2220/706 (2013.01); F05B 2240/941 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
an axle, the axle defining a rotational axis;
a blade attached to the axle for a rotation therewith about the rotational axis, the blade comprising a wall and a peripheral edge defining, in a combination with each other, a cavity of the blade; and
one of:
an opening in each of the peripheral edge and the cavity and being disposed at an end of the wall disposed furthest from the axle, and
an extension at an end of the wall disposed furthest from the axle and a passageway in the extension, the passageway being in an open communication with the cavity.