Archer Aviation, Inc.

Other

Kurt James Wagner

Geoffrey C Bower

Guy Bernard

Stephen Michael Spiteri

Diederik Marius

Tina M Wagner

Systems and methods for backlash measurement and monitoring are disclosed for an actuator having a motor end and an output end. The method may include: driving the motor end of the actuator to one endpoint; measuring, using a first sensor, a motor-end initial position value associated with the motor end; measuring, using a second sensor, an output-end initial position value associated with the output end; driving the motor end of the actuator to another endpoint; measuring a motor-end final position value using the first sensor and an output-end final position value using the second sensor; determining a backlash value based on the motor-end initial position value, output-end initial position value, motor-end final position value, and output-end final position value; generating a signal based on comparing the backlash value to a predetermined threshold; and displaying a notification indicative of an operational condition of the actuator based on the signal.

Systems and methods for actuator backlash measurement and monitoring

An aircraft system for damping movement of a structural flight element. The aircraft system including a moveable aircraft structure, a power source, a controller, a resistor, and a first transistor connected in series to the resistor. When the power source of the aircraft is providing power, the controller controls the first transistor to prevent current flow through its terminals and through the resistor. Further, when the power source of the aircraft is not providing power, the first transistor allows current generated by a back EMF (electromotive force) voltage to flow through its terminals and through the resistor, the back EMF voltage being created by movement of the moveable aircraft structure.

Systems and methods for electric damping of aircraft flight control surfaces and propellers

An oxygen mask for providing a supply of oxygen to an occupant of a structure during a fire. The oxygen mask includes a pressurized gas cylinder coupled to a face mask for supplying oxygen to the user and can be operated by a removal of a safety pin and a subsequent actuation of a button which allows oxygen to flow into the face mask. A charge gauge is provided for indicating a charge status of the gas cylinder and alternate embodiments of the present invention include an eye cover assembly for protecting a user's eyes and a light assembly for illuminating an area in front of the user.

Oxygen mask apparatus

A chin implant molded of biologically inert material is surgically inserted and positioned on the outer surface of the mandible to form a build-up of the jaw. The surgical procedure is called a menoplasty. The implant is designed to give a natural contour to the shape of the jaw for patients who have receding chins. The implant has two notches on its upper edge which are adjacent to the mental foramens. The notches allow for physical clearance between the mental nerves and the implant.

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Los Gatos, CA, United States of America

Kurt James Wagner