Multicopter-assisted system and method for launching and retrieving a fixed-wing aircraft

Patent metadata

Field	Value
Publication number	US-10899441-B1
Application number	US-202016880345-A
Country	US
Kind code	B1
Filing date	May 21, 2020
Priority date	Apr 2, 2013
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

The present disclosure provides various embodiments of a multicopter-assisted launch and retrieval system generally including: (1) a multi-rotor modular multicopter attachable to (and detachable from) a fixed-wing aircraft to facilitate launch of the fixed-wing aircraft into wing-borne flight; (2) a storage and launch system usable to store the modular multicopter and to facilitate launch of the fixed-wing aircraft into wing-borne flight; and (3) an anchor system usable (along with the multicopter and a flexible capture member) to retrieve the fixed-wing aircraft from wing-borne flight.

First claim

The invention is claimed as follows:

1. A multicopter comprising:
multiple arms each including a rotor and a rotor motor drivingly engaged to the rotor;
one or more supports to which the arms are attachable;
a suspension attached to the one or more supports and extending at least partially above the one or more supports;
an isolator plate attached to the suspension and extending above at least part of the suspension;
an avionics enclosure attached to the isolator plate; and
a battery attached to the isolator plate,
wherein the battery, the isolator plate, and the suspension are configured to reduce vibration caused by the rotors from being transferred through the multiple arms and the one or more supports to the avionics enclosure.

2. The multicopter of claim 1 , wherein the one or more supports include multiple mounting posts, the isolator plate defines multiple mounting openings, and the mounting posts are respectively receivable in the mounting openings.

3. The multicopter of claim 2 , wherein the suspension includes multiple first shock-absorbing elements between the one or more supports and the isolator plate.

4. The multicopter of claim 3 , wherein the first shock-absorbing elements include springs.

5. The multicopter of claim 3 , wherein the suspension includes multiple second shock-absorbing elements between multiple spring retaining elements and the isolator plate.

6. The multicopter of claim 5 , wherein the second shock-absorbing elements include springs.

7. The multicopter of claim 1 , wherein:
the one or more supports include multiple mounting posts, the isolator plate defines multiple mounting openings, and the mounting posts are respectively receivable in the mounting openings,
the suspension includes multiple first shock-absorbing elements between the one or more supports and the isolator plate,
the suspension includes multiple second shock-absorbing elements between multiple spring retaining elements and the isolator plate, and
the suspension includes a constraining element positioned to enable restricted movement of the one or more supports and the isolator plate relative to one another.

8. The multicopter of claim 1 , which includes an inertial measurement unit attached to the isolator plate.

9. A multicopter comprising:
a supporting structure;
multiple arms each including a rotor and a rotor motor drivingly coupled to the rotor, each arm attachable to the supporting structure;
a suspension attached to the supporting structure and extending at least partially above the supporting structure;
an isolator plate attached to the suspension and extending above at least part of the suspension;
an avionics enclosure attached to the isolator plate; and
a battery attached to the isolator plate,
wherein the battery, the isolator plate, and the suspension are configured to reduce vibration caused by the rotors from being transferred through the multiple arms and supporting structure to the avionics enclosure.

10. The multicopter of claim 9 , wherein the supporting structure includes multiple mounting posts, the isolator plate defines multiple mounting openings, and the mounting posts are respectively receivable in the mounting openings.

11. The multicopter of claim 9 , wherein the suspension includes multiple first shock-absorbing elements between the supporting structure and the isolator plate.

12. The multicopter of claim 11 , wherein the first shock-absorbing elements include springs.

13. The multicopter of claim 12 , wherein the suspension includes multiple second shock-absorbing elements between multiple spring retaining elements and the isolator plate.

14. The multicopter of claim 13 , wherein the second shock-absorbing elements include springs.

15. The multicopter of claim 9 , wherein:
the supporting structure includes multiple mounting posts, the isolator plate defines multiple mounting openings, and the mounting posts are respectively receivable in the mounting openings,
the suspension includes multiple first shock-absorbing elements between the supporting structure and the isolator plate,
the suspension includes multiple second shock-absorbing elements between multiple spring retaining elements and the isolator plate, and
the suspension includes a constraining element positioned to enable restricted movement of the supporting structure and the isolator plate relative to one another.

16. The multicopter of claim 9 , which includes an inertial measurement unit attached to the isolator plate.

17. A multicopter comprising:
multiple arms each including a rotor and a rotor motor drivingly engaged to the rotor;
one or more supports to which the arms are attachable;
an isolator plate; and
a suspension attaching the one or more supports and the isolator plate,
wherein:
the one or more supports include multiple mounting posts, the isolator plate defines multiple mounting openings, and the mounting posts are respectively receivable in the mounting openings,
the suspension includes multiple first shock-absorbing elements between the one or more supports and the isolator plate,
the suspension includes multiple second shock-absorbing elements between multiple spring retaining elements and the isolator plate, and
the suspension includes a constraining element positioned to enable restricted movement of the one or more supports and the isolator plate relative to one another.

18. A multicopter comprising:
a supporting structure;
multiple arms each including a rotor and a rotor motor drivingly coupled to the rotor, each arm attachable to the supporting structure;
an isolator plate; and
a suspension coupling the supporting structure and the isolator plate,
wherein:
the supporting structure includes multiple mounting posts, the isolator plate defines multiple mounting openings, and the mounting posts are respectively receivable in the mounting openings,
the suspension includes multiple first shock-absorbing elements between the supporting structure and the isolator plate,
the suspension includes multiple second shock-absorbing elements between multiple spring retaining elements and the isolator plate, and
the suspension includes a constraining element positioned to enable restricted movement of the supporting structure and the isolator plate relative to one another.

Assignees

• Hood Tech Corp

Inventors

• Von Flotow Andreas H
• Roeseler Corydon C
• Reiss Daniel Pepin

Classifications

• B64U80/70

  in containers (B64U80/60 takes precedence) · CPC title

• B64U70/30

  for capturing UAVs in flight by ground or sea-based arresting gear, e.g. by a cable or a net · CPC title

• B64U2201/20

  Remote controls · CPC title

• B64U50/19

  using electrically powered motors · CPC title

• B64C27/48 Primary

  Root attachment to rotor head · CPC title