US 12,030,606 B2
Propeller
Gregory Charles Sharrow, Grosse Pointe Park, MI (US)
Assigned to Sharrow Engineering LLC, Shelby Township, MI (US)
Filed by Sharrow Engineering LLC, Shelby Township, MI (US)
Filed on Apr. 3, 2023, as Appl. No. 18/194,994.
Application 18/194,994 is a continuation of application No. 17/577,587, filed on Jan. 18, 2022, granted, now 11,649,026.
Application 17/577,587 is a continuation of application No. 15/897,767, filed on Feb. 15, 2018, granted, now 11,273,892, issued on Mar. 15, 2022.
Application 15/897,767 is a continuation of application No. 15/605,764, filed on May 25, 2017, granted, now 9,926,058, issued on Mar. 27, 2018.
Claims priority of provisional application 62/508,139, filed on May 18, 2017.
Claims priority of provisional application 62/342,284, filed on May 27, 2016.
Prior Publication US 2023/0249793 A1, Aug. 10, 2023
Int. Cl. B63H 1/26 (2006.01); B64C 11/00 (2006.01); B64C 11/16 (2006.01); B64C 11/18 (2006.01); B64C 11/20 (2006.01); F01D 5/14 (2006.01); F03D 1/06 (2006.01); F04D 29/38 (2006.01); F04D 17/02 (2006.01); F04D 29/28 (2006.01)
CPC B63H 1/265 (2013.01) [B64C 11/00 (2013.01); B64C 11/005 (2013.01); B64C 11/16 (2013.01); B64C 11/18 (2013.01); B64C 11/20 (2013.01); F01D 5/141 (2013.01); F03D 1/0625 (2013.01); F04D 29/384 (2013.01); F04D 17/025 (2013.01); F04D 29/281 (2013.01); F05B 2210/16 (2013.01); F05B 2250/24 (2013.01); F05B 2250/25 (2013.01); F05B 2250/26 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of manufacturing a propeller having a plurality of blades, each of the plurality of blades having an intake portion, an exhaust portion, and a tip portion extending from the intake portion to the exhaust portion, the method comprising:
defining a plurality of parameter sections by selecting some of the parameters including skew angle, roll angle, rake, radius, pitch angle, and vertical angle values;
defining the plurality of parameter sections so a root of the exhaust portion is forward of a root of the intake portion when extending outward from a hub, and skew is continually decreasing;
extrapolating between the plurality of parameter sections to form smooth lines to form a blade of the plurality of blades configured to form a loop when attached to the hub; and
attaching the plurality of blades to the hub to form the propeller.