The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2025
Filed:
Oct. 21, 2022
Applicant:
University of Maryland, Baltimore County, Baltimore, MD (US);
Inventors:
Weidong Zhu, Ellicott City, MD (US);
Gang Li, Halethorpe, MD (US);
Assignee:
UNIVERSITY OF MARYLAND, BALTIMORE COUNTY, Baltimore, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16H 35/02 (2005.12); F16H 35/00 (2005.12);
U.S. Cl.
CPC ...
F16H 35/02 (2012.12); F16H 2035/003 (2012.12);
Abstract
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 along the entire first pitch curve; and wherein the second pitch curve is a conjugate of the first pitch curve.