Gopro, Inc.

Fitbit, Inc.

Other

Reza Yazdani

William H Tolbert

Noriaki Saika

Benjamin Patrick Robert Jean Riot

Ihab A Ali

Yonghua Wei

Edison Tam King Miguel

Aditya Vivekanand Nadkarni

Allen Yu-Li Wang

Dennis Alejandro Grijalva

Vaibhav Kiran Mistry

Disclosed is an aerial vehicle. The aerial vehicle may include a removable battery. Various embodiments of removable battery assemblies include a pull-bar battery assembly, a latch battery assembly, and a lever battery assembly. The aerial vehicle may also include a propeller locking mechanism to which propellers may be removably coupled. The propeller locking mechanism may obviate the need for tools for coupling or decoupling propellers to the aerial vehicle. Vents in the arm of the aerial vehicle may provide an air pathway, providing convective cooling for the electronics aerial vehicle.

Removable battery with a pull-bar to remove the battery from a chassis

Coupling assembly for a removable propeller

Mechanisms for providing inductance-based user interface elements are provided. Some implementations of such inductance-based devices may feature very small gaps between the housing and the inductive coil, as well as various features to aid in improving sensor sensitivity and reducing the possibility of false button-push events.

Inductance-based user interface elements

A propeller blade comprises a blade root coupled to a rotor hub and a blade tip. The propeller blade is composed of airfoil cross-sections, each cross-section a distance away from the rotor hub. Each airfoil is designed with particular structural characteristics that improve the overall amount of thrust generated on the quadcopter. Namely, each airfoil possesses a &#x3b2; angle and chord length whose values depend on the distance of that airfoil from the rotor hub. For example, the relationship between an airfoil's &#x3b2; angle and its distance from the rotor hub is described by a power law. Additionally, the relationship between an airfoil's chord length and its distance from the rotor hub is described using a polynomial regression. Compared to current, off the shelf propeller blades, the current propeller blade embodiment achieves the same thrust at a lower RPM, thereby yielding benefits in reduced acoustic noise and improved response time.

Propeller blade beta twist

Propeller

Growing community of inventors

San Francisco, CA, United States of America

Reza Yazdani