ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,236, issued on Jan. 13.
"Sinusoidal blade apparatus" was invented by David M. Patrick (Ladera Ranch, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for manipulating a substance, the apparatus having a blade having: a fin hub associated with a fin formed by a sinusoidal outer edge and an inner surface extending from the sinusoidal edge to a center of the fin, the fin hub being associated with a portion of the sinusoidal outer edge of the fin, such that to cause the fin hub and the fin to rotate simultaneously about a rotational axis that is coaxial with the fin hub; wherein, said substance is simultaneously pulled in via two oppos...