US 12,410,769 B2
Collapsible rotor assembly of a vertical axis wind turbine
Jeffrey Willis, Omaha, NE (US); Antonio Ojeda Monge, El Puerto de Santa Maria (ES); David John Malcolm, Kirkland, WA (US); Olamide Ajala-Inyang, Brentwood, CA (US); Omar Garcia, Amarillo, TX (US); and Alin-Ionut Munteanu, Leuven (BE)
Assigned to Wind Harvest Intl, Davis, CA (US)
Filed by Wind Harvest International Inc, Davis, CA (US)
Filed on Jun. 4, 2023, as Appl. No. 18/328,746.
Prior Publication US 2024/0401561 A1, Dec. 5, 2024
Int. Cl. F03D 3/06 (2006.01); F03D 3/00 (2006.01); F03D 13/20 (2016.01); F03D 13/40 (2016.01)
CPC F03D 3/062 (2013.01) [F03D 3/005 (2013.01); F03D 13/20 (2016.05); F03D 13/40 (2016.05); F05B 2230/60 (2013.01); F05B 2240/211 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A rotor assembly comprising:
a mast having a mast top portion and a mast bottom portion;
a blade having a blade top portion and a blade bottom portion;
a first connection member attached to the mast top portion and a second connection member attached to the mast bottom portion;
a third connection member attached to the blade top portion and a fourth connection member attached to the blade bottom portion;
a first arm having a first arm proximal end and a first arm distal end, wherein:
the first arm distal end is pivotally attached with the first connection member, and
the first arm proximal end is pivotally attached with the third connection member; and
a second arm having a second arm proximal end and a second arm distal end, wherein:
the second arm distal end is removably attached with the second connection member that is attached to the mast bottom portion, and
the second arm proximal end is pivotally attached with the fourth connection member,
wherein the rotor assembly is in a collapsed state when the second arm distal end is detached from the second connection member, and the rotor assembly is in an installed state when the second arm distal end is attached to the second connection member, and
wherein a blade longitudinal axis is parallel to a mast longitudinal axis in both the collapsed state and the installed state.