US 12,297,807 B2
Vertical axis wind turbine with polygonal mast
Jeff Willis, Omaha, NE (US); Alin Ionut Munteanu, Leuven (BE); Antonio Ojeda Monge, El Puerto de Santa Maria (ES); Olamide Ajala Inyang, San Leandro, CA (US); and David John Malcolm, Kirkland, WA (US)
Assigned to Wind Harvest International Inc, Davis, CA (US)
Filed by Wind Harvest International Inc, Davis, CA (US)
Filed on Apr. 3, 2023, as Appl. No. 18/295,110.
Prior Publication US 2024/0328386 A1, Oct. 3, 2024
Int. Cl. F03D 3/06 (2006.01); F03D 3/00 (2006.01); F03D 13/20 (2016.01)
CPC F03D 3/064 (2013.01) [F03D 3/005 (2013.01); F03D 3/062 (2013.01); F03D 13/20 (2016.05); F05B 2240/214 (2013.01); F05B 2250/132 (2013.01); F05B 2260/301 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A wind turbine comprising:
a polygonal mast having a first predefined count of faceted sides, wherein the polygonal mast comprises a mast top end and a mast bottom end; and
a drive shaft comprising a polygonal drive shaft top end and a drive shaft bottom end, wherein the drive shaft bottom end is cylindrical, wherein the polygonal drive shaft top end is configured to connect the mast bottom end with the drive shaft, wherein the polygonal drive shaft top end has a second predefined count of faceted sides, wherein the first predefined count of faceted sides is same as the second predefined count of faceted sides, wherein a width of each polygonal mast faceted side is equivalent to a width of each polygonal drive shaft top end faceted side, and each faceted side of the polygonal drive shaft top end and the polygonal mast comprises through-holes that are configured to receive a first fastening mechanism to attach the mast bottom end with the polygonal drive shaft top end,
wherein the drive shaft bottom end is configured to connect to a power generator, and wherein the drive shaft is configured to rotate axially when the polygonal mast rotates, which enables the power generator to generate electric power.