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:
Sep. 17, 2019
Filed:
Apr. 21, 2016
Sri International, Menlo Park, CA (US);
Curt Salisbury, San Ramon, CA (US);
SRI International, Menlo Park, CA (US);
Abstract
An apparatus includes a ring gear having a plurality of gear teeth, where each of the plurality of gear teeth of the planet gear has a partial cycloid profile, and a planet gear rotatable within the ring gear, where the planet gear has a plurality of gear teeth, and each of the plurality of gear teeth of the planet gear has a partial cycloid profile. The total number of gear teeth of the planet gear is smaller than the total number of gear teeth of the ring gear. The gear teeth of the planet gear operatively mesh with corresponding gear teeth of the ring gear. The total number of gear teeth of the planet gear provides each gear tooth of the planet gear with a bending strength and a compressive strength such that the bending strength and the compressive strength differ by less than a predetermined amount.