# US 11,440,667 B2 · Shock absorbing evacuation systems and methods

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- Number: US 11,440,667 B2
- Document ID: US11440667B2
- Status: Granted
- Kind: B2
- Application number: 16/657,951
- Filed: 2019-10-18
- Published: 2020-02-13
- Granted: 2022-09-13
- Earliest claimed: 2017-01-17
- Assignees: Goodrich Corporation
- Applicants: Goodrich Corporation
- Inventors: Jaro S Volny; Drew Hartman
- Web page: https://patentgrep.com/patent/US11440667B2

## CPC

- B64D 25/14: Inflatable escape chutes
- A62B 1/20: by making use of sliding-ropes, sliding-poles or chutes, e.g. hoses, pipes, sliding-grooves, sliding-sheets
- B64D 25/08: Ejecting or escaping means
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- A62B: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING (valves specially adapted for medical use A61M39/00; life-saving devices, apparatus or methods specially adapted for use in water B63C9/00; divers' equipment B63C11/00; specially adopted for use with aircraft, e.g. parachutes, ejector seats, {B64D17/00, B64D25/10}; rescue devices peculiar to mining E21F11/00)

## Abstract

A method for deploying an inflatable slide includes increasing pressure within the inflatable slide, increasing a load in a force releasing member and a dampener, both of which are attached to the inflatable slide, in response to the increasing pressure within the evacuation slide, the load being increased at a slower rate than would occur if the dampener were not present, separating the force releasing member, and inflating the inflatable slide.

## Claims

### Claim 1

A method for deploying an inflatable slide, comprising:
increasing pressure within the inflatable slide;
increasing a same load in a force releasing member and a dampener, both of which are attached to the inflatable slide, in response to the increasing pressure within the evacuation slide, the same load being increased at a slower rate than would occur if the dampener were not present;
separating the force releasing member; and
inflating the inflatable slide,
wherein a first strap is coupled to the force releasing member at a first location, a second strap is coupled to the force releasing member at a second location, the dampener is coupled to the force releasing member, and the dampener is coupled in parallel with the second strap.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
stretching, by the dampener, in response to the same load.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the force releasing member separates in response to the same load.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the force releasing member separates in response to a predetermined pressure.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the force releasing member is attached to the inflatable slide at least two locations.