IP Library › Granted Patent US 12679547
Granted Patent B2
US 12679547 · App. 18/658,160 · Granted Jul 14, 2026

Parachute systems and energy attenuating drogue systems thereof

Inventors: Joseph Chamberland (Marion, IA); Tyler Esposito (Enfield, CT); Akash Mukherjee (Plano, TX); Talyn Meyer (Marion, IA); Osvaldo Sanchez (McKinney, TX); John L. Hampton (Bradenton, FL); Christopher Ian Rolland (Colorado Springs, CO); Bradley Mastrolia (Colorado Springs, CO)
Assignee: AMI INDUSTRIES, INC.
B64D17/36B64D17/24B64D25/10
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Quick Facts
Patent No.
US 12679547
App. No.
18/658,160
Granted
Jul 14, 2026
Kind
B2
Abstract

Drogue parachute systems include an ejection seat, an elastic riser operably connected to the ejection seat at a first end and a riser connection is arranged at a second end of the elastic riser, a set of suspension lines operably connected to the riser connection, and a drogue canopy attached to the set of suspension lines opposite the riser connection.

Claims (39)

1 . A drogue parachute system comprising:

an ejection seat;

an elastic riser operably connected to the ejection seat at a first end and a riser connection is arranged at a second end of the elastic riser;

a set of suspension lines operably connected to the riser connection; and

a drogue canopy attached to the set of suspension lines opposite the riser connection.

2 . The drogue parachute system of claim 1 , wherein the elastic riser is formed from kinetic rope.

3 . The drogue parachute system of claim 1 , wherein the elastic riser is formed from bungee cord material or bungee jumping cord material.

4 . The drogue parachute system of claim 1 , wherein the elastic riser is configured to extend from a first length to a second length during deployment of the drogue canopy.

5 . The drogue parachute system of claim 4 , wherein the second length is a length that is at least 15% greater than the first length.

6 . The drogue parachute system of claim 1 , wherein the elastic riser is operably connected to the ejection seat via an aramid fiber cable.

7 . The drogue parachute system of claim 1 , wherein the elastic riser is operably connected to the set of suspension lines via an aramid fiber cable.

8 . The drogue parachute system of claim 1 , further comprising a drogue parachute attenuation system disposed between and connecting the elastic riser to the ejection seat.

9 . The drogue parachute system of claim 8 , wherein the drogue parachute attenuation system comprises at least one attenuation element connected between the ejection seat and the elastic riser.

10 . The drogue parachute system of claim 9 , wherein the drogue parachute attenuation system comprises:

an attenuator bushing attached to the ejection seat; and

an attenuator coupling attached to the elastic riser,

wherein the at least one attenuation element extends between the attenuator bushing and the attenuator coupling.

11 . The drogue parachute system of claim 10 , wherein the drogue parachute attenuation system further comprises:

a first connector configured to attach the attenuator bushing to the at least one attenuation element; and

a second connector configured to attach the at least one attenuation element to the attenuator coupling.

12 . The drogue parachute system of claim 9 , wherein the at least one attenuation element is made of kinetic rope.

13 . The drogue parachute system of claim 9 , wherein the at least one attenuation element is made of bungee cord material or bungee jumping cord material.

14 . A drogue parachute system comprising:

an ejection seat;

a riser;

a set of suspension lines;

a drogue canopy, wherein the drogue canopy is attached at a first end of the set of suspension lines and the riser is attached to a second end of the suspension lines; and

a drogue parachute attenuation system arranged between the riser and the ejection seat, the drogue parachute attenuation system comprising:

an attenuator bushing attached to the ejection seat;

an attenuator coupling attached to the riser; and

at least one attenuator element attached between the attenuator bushing and the attenuator coupling.

15 . The drogue parachute system of claim 14 , wherein the at least one attenuator element is formed from kinetic rope.

16 . The drogue parachute system of claim 14 , wherein the at least one attenuator element is formed from bungee cord material or bungee jumping cord material.

17 . The drogue parachute system of claim 14 , wherein the at least one attenuator element comprises a plurality of cables.

18 . The drogue parachute system of claim 14 , wherein the drogue parachute attenuation system further comprises:

a first connector configured to attach the attenuator bushing to the at least one attenuation element; and

a second connector configured to attach the at least one attenuation element to the attenuator coupling.

19 . The drogue parachute system of claim 14 , wherein the riser is made of kinetic rope.

20 . The drogue parachute system of claim 14 , wherein the riser is made of bungee cord material or bungee jumping cord material.