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:
Jun. 30, 2020
Filed:
May. 07, 2019
Rasyad Chung, Berkeley, CA (US);
Rasyad Chung, Berkeley, CA (US);
Other;
Abstract
A truck for a riding device with three primary motions of leaning, steering, and floating, comprising three rigid bodies, a baseplate, a revolute floating kingpin, and a hanger. A revolute joint moveably connects the kingpin and baseplate, an upper spherical joint moveably connects the baseplate and hanger, and a lower spherical joint moveably connects the hanger and kingpin. The upper and lower spherical joints define a hanger pivot axis, with a virtual pivot point at the intersection of the hanger pivot axis and a line vertically projected from the axle axis. A longitudinal roll axis is coincident with the axis of rotation of the revolute joint. In a riding device, a virtual pivot point roll axis is coincident with a virtual line between a virtual pivot point of the front truck and a virtual pivot point of the rear truck.