US 11,945,562 B1
Shovel blade airplane/boat propeller
Michael Kipnis, Skokie, IL (US)
Assigned to Cyclazoom, LLC, Skokie, IL (US)
Filed by Cyclazoom, LLC, Skokie, IL (US)
Filed on Sep. 20, 2023, as Appl. No. 18/470,534.
Int. Cl. B63H 1/16 (2006.01); B63H 1/26 (2006.01)
CPC B63H 1/16 (2013.01) [B63H 1/26 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A propeller, comprising:
a rotatable hub;
a ring structure including an inner ring spaced apart from said rotatable hub, shovel blades fixed to said inner ring, and an annular, outer ring spaced apart and radially outward from said inner ring, said outer ring being tapered at an angle radially outward from an axial rear edge of said outer ring to an axial front edge of said outer ring in a direction toward the axial front edge of said outer ring such that the axial front edge of said outer ring is radially outward of the axial rear edge of said outer ring,
each of said shovel blades being connected at an inner lateral edge to an outer surface of said inner ring, being connected at an outer lateral edge to an inner surface of said outer ring, and being angled rearward,
said shovel blades being spaced apart from one another in a circumferential direction such that a leading edge of each of said shovel blades does not overlie a trailing edge of an immediately adjacent one of said shovel blades and the trailing edge of each of said shovel blades does not underlie the leading edge of an immediately adjacent one of said shovel blades; and
connection means for connecting said inner ring to said rotatable hub through a space between said inner ring and said rotatable hub.