IP Library Granted Patent US 12,534,181
Granted Patent B2
US 12,534,181 · App. 18/962,386 · Granted Jan 27, 2026

Rib mounting flanges for an unmanned aerial vehicle

Inventor: Emil Ghapgharan (Simi Valley, CA)
Assignee: AeroVironment, Inc.
B64C3/187B64C3/185B64C3/26
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Quick Facts
Patent No.
US 12,534,181
App. No.
18/962,386
Granted
Jan 27, 2026
Kind
B2
Abstract

Systems, devices, and methods including one or more rib mounting flanges, where each rib mounting flange comprises: a spar opening configured to receive a main spar of a wing panel; one or more holes for receiving cross-bracing cables; and one or more holes for receiving cross-bracing cables; and one or more holes for connecting the rib mounting flange to an adjacent rib mounting flange.

Claims (35)

1 . A system comprising:

one or more rib mounting flanges, wherein each rib mounting flange comprises:

an opening configured to receive a spar of a wing panel;

a plurality of pieces; and

a battery, wherein the battery is attached to the plurality of pieces.

2 . The system of claim 1 , wherein each rib mounting flange further comprises:

one or more holes for receiving cross-bracing cables.

3 . The system of claim 1 , wherein each rib mounting flange further comprises:

one or more holes for connecting the rib mounting flange to an adjacent rib mounting flange.

4 . The system of claim 1 , further comprising:

one or more rib members, wherein each rib member is attached to each rib mounting flange.

5 . The system of claim 4 , wherein each rib mounting flange is configured to transfer a load from a rib member of the one or more rib members to the rib mounting flange and then to the received spar.

6 . The system of claim 5 , wherein each rib member is attached to each rib mounting flange via an adhesive.

7 . The system of claim 1 , wherein each of the plurality of pieces is attached around the spar to connect the rib mounting flange to the spar, wherein the plurality of pieces adapt to a varying spar profile.

8 . The system of claim 7 , wherein an outside surface of the spar is irregular.

9 . The system of claim 1 , wherein each rib mounting flange is made of carbon fiber and epoxy.

10 . The system of claim 1 , wherein an outside diameter of the spar matches a diameter of the opening.

11 . A system comprising:

one or more wing panels comprising one or more spars;

one or more rib mounting flanges, wherein the one or more rib mounting flanges comprise: an inboard end rib flange and an outboard end rib flange; and

one or more rib members, wherein each rib member of the one or more rib members is attached to each rib mounting flange of the one or more rib mounting flanges, wherein the one or more rib members comprise an inboard end rib member;

wherein the one or more rib mounting flanges further comprise a center compression rib flange;

wherein the one or more rib members comprise a center compression rib member;

wherein the center compression rib flange connects the center compression rib member to the one or more spars;

wherein the center compression rib flange is located proximate a center of the one or more wing panels;

wherein the one or more cross-bracing cables are connected between the inboard end rib flange, the center compression rib flange, and the outboard rib flange; and

wherein the outboard end rib member, center compression rib member, and inboard end rib member absorb cross-bracing loads and transfer the loads to the one or more spars.

12 . The system of claim 11 , wherein the inboard end rib flange connects the inboard end rib member to the one or more spars.

13 . The system of claim 11 , wherein the inboard end rib flange is located proximate a connection between two adjacent wing panels of the one or more wing panels.

14 . The system of claim 11 , wherein the one or more rib members comprise an outboard end rib member, and wherein the outboard end rib flange connects the outboard end rib member to the one or more spars.

15 . The system of claim 14 , wherein the outboard end rib flange is located proximate an end of the one or more wing panels.

16 . The system of claim 11 , wherein the one or more spars comprise a main spar, and wherein each of the one or more rib mounting flanges is configured to transfer a load from the one or more rib members to the rib mounting flange and then to the main spar.

17 . The system of claim 11 , wherein each of the plurality of pieces is attached around the one or more spars to connect the rib mounting flange to the one or more spars, wherein the plurality of pieces adapt to a varying main profile of the one or more spars.

18 . The system of claim 17 , wherein an outside surface of a main spar of the one or more spars is irregular.

19 . The system of claim 11 , wherein the one or more rib mounting flanges further comprise two or more light weight rib flanges, wherein the two or more light weight rib flanges connect the one or more rib members to the one or more spars, and wherein the two or more light weight rib flanges are located between the inboard end rib member and the center compression rib member and the center compression rib member and the outboard end rib member.

Assignments (2)
SECURITY INTEREST Recorded May 5, 2025
From: AEROVIRONMENT, INC.
To: BANK OF AMERICA, N.A., AS THE ADMINISTRATIVE AGENT
Reel/Frame 071024/0525 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2024
From: GHAPGHARAN, EMIL
To: AEROVIRONMENT, INC.
Reel/Frame 069423/0642 →
Continuity (4)
Continuation 18238603 · Aug 28, 2023
Continuation 17797353
Provisional Application 62970139 · Feb 4, 2020
Related Publication 20250091708A1 · Mar 20, 2025
References Cited (19)
US 1357073A · Dermot · 1920 [cited by applicant]
US 1556589A · Clark et al. · 1925 [cited by applicant]
US 1846772A · Barnes · 1932 [cited by applicant]
US 2362301A · Pecker · 1944 [cited by applicant]
US 2988152A · Katzenberger et al. · 1961 [cited by applicant]
US 4739954A · Hamilton · 1988 [cited by applicant]
US 6386481B1 · Kallinen · 2002 [cited by applicant]
US 11772774B2 · Ghapgharan · 2023 [cited by applicant]
US 20130240671A1 · Kruse et al. · 2013 [cited by applicant]
US 20160144969A1 · Rawdon et al. · 2016 [cited by applicant]
US 20180118327A1 · Blevins et al. · 2018 [cited by applicant]
US 20190296300A1 · Zimmermann et al. · 2019 [cited by applicant]
US 20200148327A1 · Elson et al. · 2020 [cited by applicant]
GB 132153A · 1919 [cited by applicant]
GB 352286A · 1931 [cited by applicant]
GB 797376A · 1958 [cited by applicant]
GB 808852A · 1959 [cited by applicant]
KR 20180041423A · 2018 [cited by applicant]
International Search Report and Written Opinion for PCT/US2021/016350, mailed Apr. 15, 2021. [cited by applicant]