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:
Nov. 10, 1998
Filed:
Mar. 26, 1997
Angel Fernandez, Shelby Township, MI (US);
Other;
Abstract
A ring gear and a plurality of planet gear carriers diametrically disposed, at substantially equal angles to each other, in a plane therewithin, each carrier rotatably supporting a separate one of a pair of planet gears at each opposite end thereof. The planet gears engage with and are rotated by the ring gear. Each planet gear has an eccentrically disposed mass that revolves about the center of rotation of the planet gear while revolving about the center of rotation of the planet gear carrier, creating centrifugal and Coriolis forces that are additive. An instant angular disposition, with respect to its planet gear carrier, of the center of mass of one of a pair of planet gears is always the same as that of the other of the pair but does not coincide with that of any other planet gear. This creates a couple that is applied to an output shaft when the force of the former and the rotation of the latter are in the same direction. When they are not, the couple is applied to a reaction plate. The angular disposition between the planet gear carriers ensure that torque pulses applied to the output shaft by the couples are not applied simultaneously but are equally separated in time to provide a relatively smooth output torque.