Aurora Flight Sciences Corporation

Other

Edward Scott

Fabrice Kunzi

Donald Rogers

Andrew Kehlenbeck

Michael Sardonini

Walter D Teague, Jr

Riley C Griffin

Sean Humbert

An obstacle-avoidance system for a vehicle, the obstacle-avoidance system may comprise: a communication device; a plurality of sensors, the plurality of sensors configured to detect collision threats within a predetermined distance of the vehicle; and a processor. The processor may communicatively couple to the communication device and the plurality of sensors and configured to receive navigation commands being communicated to a control system via said communication device. The processor may also receive, from at least one of said plurality of sensors, obstruction data reflecting the position of an obstruction. Using the obstruction data, the processor identifies a direction for avoiding said obstruction. In response, the processor may output, via said communication device, a command to said control system causing the vehicle to travel in said flight direction. Using the obstruction data, the processor may further perform a landing assist module, a three-region collision protection function with pilot override, and/or a target-filtering function.

Collision-avoidance system and method for unmanned aircraft

An aerial vehicle comprising an airframe, an aircraft flight controller to provide an output control signal, and a planar printed circuit board positioned on the airframe. The printed circuit board may include coupled thereto a processor, a rate gyroscope, and at least three accelerometers. The processor is configured to generate an actuation signal based at least in part on a feedback signal received from at least one of said rate gyroscope and the at least three accelerometers. The processor communicates the actuation signal to said aircraft flight controller, which is configured to adjust the output control signal based on said actuation signal.

Distributed acceleration sensing for robust disturbance rejection

Collision avoidance system and method for unmanned aircraft

Coffee grounds dispenser

A hand-operated bicycle brake assembly includes a pair of complementary, similar, preferably identical, caliper arms having a pre-formed configuration, central supporting structure including a central aperture through the elongated caliper arm and a complementary central aperture through an offset planar portion extending from the central area of the arm, one end of the arm provided with a concave recess and threaded aperture for a locking bolt therein, a brake shoe, a support hub integral therewith and provided with spherical projections at each end for mating with a recess in the caliper arm and a bushing and secured to the caliper arm by a through bolt, the caliper arm being forked and provided with a cable clamp nut and bolt. The cable clamp nut and bolt is in two parts for engaging a cable as passed through a slot in the bolt. The brake assembly further comprises a support head having a mounting bolt for attachment thereof in adjustable fashion to a bicycle frame and a bearing support projection extending therefrom for supporting the complementary pair of caliper arms thereupon by central mounting apertures thereof. Low friction bearing washers and sleeve are provided with a locking bolt for retaining the caliper arms on the support projection and finishing the assembly.

Hand-operated bicycle brake assembly

The strength and rigidity of a bicycle brake mechanism is improved by adding a mounting post to an existing brake mechanism. The post has a surface area which is much larger than the surface area of a mounting bolt which extends through a fork crown and which tends to flex. The mounting bolt is accommodated in the mounting post, and the two elements have a rigidity and stability which is far increased over that of the mounting bolt alone.

Bicycle brake mechanism

Growing community of inventors

Cambridge, MA, United States of America

Edward Scott