Parachute assemblies with elastomeric inserts

Patent metadata

Field	Value
Publication number	US-11299281-B2
Application number	US-202016983459-A
Country	US
Kind code	B2
Filing date	Aug 3, 2020
Priority date	Aug 3, 2020
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

A parachute assembly may comprise a canopy and a plurality of suspension lines coupled to the canopy. Each of the suspension lines may include an elastomeric insert coupled between a first portion of the suspension line and a second portion of the suspension line. At least a portion of the elastomer insert may be located within an internal volume of the suspension line.

First claim

What is claimed is:

1. A parachute assembly, comprising:
a suspension line;
a first elastomeric insert coupled between a first portion of the suspension line and a second portion of the suspension line, wherein at least a portion of the first elastomeric insert is located within an internal volume of the suspension line.

2. The parachute assembly of claim 1 , further comprising:
a first stitching coupling a first segment of the first elastomeric insert to the first portion of the suspension line; and
a second stitching coupling a second segment of the first elastomeric insert to the second portion of the suspension line.

3. The parachute assembly of claim 2 , wherein a third segment of the first elastomeric insert is located external to the suspension line, the third segment extending between the first segment and the second segment.

4. The parachute assembly of claim 3 , wherein a length of the first segment of the first elastomeric insert is at least 6 inches, the length of the first segment being measured between the first stitching and an opening in the suspension line through which the first elastomeric insert is located.

5. The parachute assembly of claim 1 , wherein the first elastomeric insert includes:
a first segment located within the internal volume of the suspension line;
a second segment located within the internal volume of the suspension line, the portion of the first elastomeric insert comprising at least one of the first segment and the second segment;
a third segment located external to the suspension line and extending between the first segment and the second segment;
a fourth segment located external to the suspension line and extending from the first segment to a first end of the first elastomeric insert; and
a fifth segment located external to the suspension line and extending from the second segment to a second end of the first elastomeric insert.

6. The parachute assembly of claim 5 , wherein the fourth segment is coupled to the suspension line by at least one of an adhesive or a heat bonding.

7. The parachute assembly claim 5 , wherein the fourth segment includes at least one of a crimp or a knot configured to block the fourth segment from translating into the internal volume of the suspension line.

8. The parachute assembly claim 1 , further comprising a second elastomeric insert coupled to the suspension line.

9. A parachute assembly, comprising:
a canopy; and
a plurality of suspension lines coupled to the canopy, wherein each suspension line of the plurality of suspension lines includes an elastomeric insert coupled between a first portion of the suspension line and a second portion of the suspension line, and wherein at least a portion of the elastomeric insert is located within an internal volume of the suspension line.

10. The parachute assembly of claim 9 , wherein each suspension line of the plurality of suspension lines further includes:
a first stitching coupling a first segment of the elastomeric insert to the first portion of the suspension line; and
a second stitching coupling a second segment of the elastomeric insert to the second portion of the suspension line.

11. The parachute assembly of claim 10 , wherein a third segment of the elastomeric insert is located external to the suspension line, the third segment extending between the first segment and the second segment.

12. The parachute assembly of claim 9 , the elastomeric insert includes:
a first segment located within the internal volume of the suspension line;
a second segment located within the internal volume of the suspension line, the portion of the elastomeric insert comprising at least one of the first segment and the second segment;
a third segment located external to the suspension line and extending between the first segment and the second segment;
a fourth segment located external to the suspension line and extending from the first segment to a first end of the elastomeric insert; and
a fifth segment located external to the suspension line and extending from the second segment to a second end of the elastomeric insert.

13. The parachute assembly of claim 12 , wherein the fourth segment is coupled to the suspension line by at least one of an adhesive or a heat bonding.

14. The parachute assembly of claim 12 , wherein the fourth segment includes at least one of a crimp or a knot configured to block the fourth segment from translating into the internal volume of the suspension line.

15. A method of testing a parachute assembly, comprising:
deploying a canopy of the parachute assembly;
increasing a tensile load applied to a suspension line coupled to the canopy; and
stretching an elastomeric insert coupled between a first portion of the suspension line and a second portion of the suspension line, wherein at least a portion of the elastomeric insert is located within an internal volume of the suspension line.

16. The method of the claim 15 , wherein the elastomeric insert is coupled to the suspension line at a first attachment point and at a second attachment point, and wherein a length of the elastomeric insert, as measured between the first attachment point and the second attachment point, is configured to allow the elastomeric insert to stretch to a length of the suspension line, as measured between the first attachment point and the second attachment point, without breaking.

17. The method of claim 16 , wherein the elastomeric insert includes:
a first segment located within the internal volume of the suspension line;
a second segment located within the internal volume of the suspension line, the portion of the elastomeric insert comprising at least one of the first segment and the second segment; and
a third segment extending between the first segment and the second segment and located outside to the suspension line.

18. The method of claim 17 , wherein the elastomeric insert further includes:
a fourth segment located outside the suspension line and extending from the first segment to a first end of the elastomeric insert; and
a fifth segment located outside the suspension line and extending from the second segment to a second end of the elastomeric insert.

Assignees

• Ami Ind Inc

Inventors

• Holstine Steve
• Carson Kassidy L
• Hampton John

Classifications

• B64D17/36 Primary

  incorporating friction devices or frangible connections to reduce shock loading of canopy {(B64D17/343, B64D17/346 take precedence)} · CPC title