US Patent Issued to UNIVERSITY OF MARYLAND, BALTIMORE COUNTY on April 29 for "Noncircular gear pair" (Maryland Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,028, issued on April 29, was assigned to UNIVERSITY OF MARYLAND, BALTIMORE COUNTY (Baltimore).

"Noncircular gear pair" was invented by Weidong Zhu (Ellicott City, Md.) and Gang Li (Halethorpe, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure describes innovations to improve the use of noncircular gear pairs in a transmission, e.g., an infinitely variable transmission. The noncircular gear pair includes a first noncircular gear with a first pitch curve; and a second noncircular gear with a second pitch curve. The first pitch curve includes a plurality of elliptical portions, and a curvature of the first pitch curve is positive...