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公开(公告)号：US20170308104A1
公开(公告)日：2017-10-26
申请号：US15492161
申请日：2017-04-20
Applicant: Worcester Polytechnic Institute
Inventor： Richard T. Eberheim , Nicholas F. Hassan , Joshua C. O'Connor
Abstract: The airborne vehicle recovery method and apparatus enables radiosonde users to reliably recover launched radiosondes and provides new and unique opportunities for research and data acquisition with balloon launched radiosondes. Airborne vehicles such as radiosondes are disposed in a flight body adapted for propulsionless, gliding navigation for returning to one of several designated landing sites for recovery. Onboard electronics including a navigation computer, flight computer, and lightweight battery are employed for selecting a landing site, computing a heading and direction, and actuating flaps for pursuing a propulsionless, gliding path to the landing site. Gliding is directed only by right and left flaps responsive to respective actuators, such that the inclusion of only the actuators, navigation and flight electronics, and without active propulsion, enables sufficient gliding range from the lightweight construction and arrangement to reach one of several landing sites for effecting substantial recovery rates of the radiosondes.
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公开(公告)号：US20170095973A1
公开(公告)日：2017-04-06
申请号：US15286942
申请日：2016-10-06
Applicant: Worcester Polytechnic Institute
Inventor： Sarah M. Chamberlain , Richard T. Eberheim
CPC classification number: B33Y10/00 , B28B1/001 , B29C64/106 , B29C64/20 , B29C64/386 , B29K2105/12 , B33Y30/00 , B33Y50/02
Abstract: A parallel robotic manipulator for generating 3 dimensional structures includes a set of redeployable towers adapted to transport one or more cables, and at least one drive source operable to draw or traverse the cables across a rendering area. An end-effector suspended from the cables is operable to deposit extrudate onto the rendering area, and a nozzle in the end-effector is configured to selectively deposit the extrudate at predefined locations based on the position of the cable. A control unit has control logic for directing the drive source, in which the cables are responsive to the drive source for disposing the end-effector either along the cables or drawn and extended from the towers. An extrudate reservoir and a pump in fluidic communication with the reservoir allows the pump to force the extrudate for deposition at the predefined location responsive to the control logic.
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公开(公告)号：US10416684B2
公开(公告)日：2019-09-17
申请号：US15492161
申请日：2017-04-20
Applicant: Worcester Polytechnic Institute
Inventor： Richard T. Eberheim , Nicholas F. Hassan , Joshua C. O'Connor
Abstract: The airborne vehicle recovery method and apparatus enables radiosonde users to reliably recover launched radiosondes and provides new and unique opportunities for research and data acquisition with balloon launched radiosondes. Airborne vehicles such as radiosondes are disposed in a flight body adapted for propulsionless, gliding navigation for returning to one of several designated landing sites for recovery. Onboard electronics including a navigation computer, flight computer, and lightweight battery are employed for selecting a landing site, computing a heading and direction, and actuating flaps for pursuing a propulsionless, gliding path to the landing site. Gliding is directed only by right and left flaps responsive to respective actuators, such that the inclusion of only the actuators, navigation and flight electronics, and without active propulsion, enables sufficient gliding range from the lightweight construction and arrangement to reach one of several landing sites for effecting substantial recovery rates of the radiosondes.
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