# US 2023/0081682 A1 · Chamber adjustable stiffness airbag

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2023/0081682 A1
- Document ID: US20230081682A1
- Status: Published application
- Kind: A1
- Application number: 17/946,608
- Filed: 2022-09-16
- Published: 2023-03-16
- Earliest claimed: 2020-02-20
- Assignees: Schroth Safety Products GmbH
- Applicants: Schroth Safety Products LLC
- Inventors: Patrick Akoma; Manuel Marroquin; Kasey Garces
- Web page: https://patentgrep.com/patent/US20230081682A1

## CPC

- B60R 21/233: comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other (B60R21/232 takes precedence)
- B60R 21/235: characterised by their material
- B60R 21/239: characterised by their venting means
- B60R 21/264: using instantaneous generation of gas, e.g. pyrotechnic (B60R21/268 takes precedence)
- B60R 2021/0093: {Aircraft}
- B60R 2021/23107: {the bag being integrated in a multi-bag system}
- B60R 2021/23308: {the individual compartments defining the external shape of the bag}
- B60R 2021/23509: {Fabric}
- B60R 2021/23576: {Sewing}
- B60R 2021/2642: {comprising a plurality of combustion chambers or sub-chambers}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

The present invention discloses a multiple-chamber airbag structure where the airbag design has at least a stiff lower section to reduce the chest velocity and a soft upper section to meet the HIC requirements. Although stowed and deployed as a unitary airbag, the present invention includes separate chambers, which allows for independent gas inflation and stiffness control with venting.

## Claims

### Claim 1

A single airbag apparatus comprising:
a plurality of structures internal to the airbag; and
at least one of the plurality of structures dividing an internal area of the airbag into at least two distinct chambers, between which an airflow is substantially restricted.

### Claim 2 (depends on 1)

The single airbag apparatus of claim 1 further comprising one or more additional structures disposed within each individual chamber configured to direct the airflow within each chamber.

### Claim 3 (depends on 2)

The airbag apparatus of claim 2 where the one or more additional structures are configured to control how either of the at least two distinct chambers deploys.