Other

Insitu, Inc.

Insitu, Inc. (a Subsidiary of the Boeing Company)

Jeffrey P Decker

Don B Olsen

Gill Brent Bearnson

Pratap S Khanwilkar

Daniel Lewis Shaw

Kelly A Comstock

B Ajit Kumar

Joseph B Jackson

Michael Baloh

Paul E Allarie

Ron Flack

James W Long, Jr

A controlled power up sequence for an unmanned aerial vehicle (UAV) is disclosed. A disclosed example controlled power up sequence for a UAV includes a remote user terminal, and a power sequence control interface including a transceiver communicatively coupled to the remote user terminal, a user-operated switch of the UAV, and a power controller to electrically couple a power source of the UAV to a propulsion system of the UAV in response to the user-operated switch being toggled on and the power sequence control interface receiving, via the transceiver, a power on signal from the remote user terminal.

Controlled powerup sequence for an unmanned aerial vehicle (UAV)

A pump for pumping sensitive fluids, such as blood, having no mechanical contact between the impeller and any other structure. The pump comprises a pump housing, an impeller disposed within the pump housing, a magnetic bearing system for supporting and stabilizing the impeller in five degrees of freedom, and a conformally shaped magnetically linked motor for rotating the impeller. The magnetic bearing system and motor advantageously comprise electromagnets and permanent magnets for stability and control of the impeller, and to reduce size, weight, and pump power consumption. Permanent and electromagnets are disposed on the pump housing and permanent magnets are disposed on the impeller such that by controlling electric current through the electromagnets on the housing, the magnetically suspended impeller functions as the rotor, and the housing as the stator of a D.C. motor. The system advantageously allows for sensing of relative impeller position and dynamic properties without the need for additional sensors. The fluid inlet, pump impeller, housing, and other components are configured such that flow patterns are as smooth and laminar as possible to reduce damage to the fluid, and such that eddies, flow separation, and re-circulation are reduced. In various embodiments, the pump is suitable for short or long-term implantation as a ventricular assist device or as a complete replacement heart in a human patient.

Implantable centrifugal blood pump with hybrid magnetic bearings

Growing community of inventors

Snowden, WA, United States of America

Jeffrey P Decker