Patents by Inventor Matthew Robert Wrona

Matthew Robert Wrona has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Differential assembly for vehicles
    Patent number: 9638305
    Abstract: A differential assembly includes a differential housing, two side gears, at least one output hub, and at least one pinion gear assembly. When a torque input is provided to the first side gear, eccentric contact surfaces on the first side gear and the output hub contact under compression forces, and compression forces between the outer cylindrical surface of the first side gear and an inner cylindrical surface of the differential housing and between the outer cylindrical surface of the first output hub and the inner cylindrical surface of the differential housing cause frictional forces between the differential housing and the first side gear and between the differential housing and the first output hub to provide a torque bias to the differential assembly. In some embodiments, the differential housing includes a second output hub and eccentric contact surfaces on the second side gear and the second output hub.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 2, 2017
    Assignee: MANA INDUSTRIES, INC.
    Inventors: Matthew Robert Wrona, Qin Xu
  • Differential Assembly for Vehicles
    Publication number: 20160025201
    Abstract: A differential assembly includes a differential housing, two side gears, at least one output hub, and at least one pinion gear assembly. When a torque input is provided to the first side gear, eccentric contact surfaces on the first side gear and the output hub contact under compression forces, and compression forces between the outer cylindrical surface of the first side gear and an inner cylindrical surface of the differential housing and between the outer cylindrical surface of the first output hub and the inner cylindrical surface of the differential housing cause frictional forces between the differential housing and the first side gear and between the differential housing and the first output hub to provide a torque bias to the differential assembly. In some embodiments, the differential housing includes a second output hub and eccentric contact surfaces on the second side gear and the second output hub.
    Type: Application
    Filed: March 12, 2014
    Publication date: January 28, 2016
    Applicant: Mana Industries, Inc.
    Inventors: Matthew Robert Wrona, Qin Xu