Collapsible/extendable aspirator system

Patent metadata

Field	Value
Publication number	US-9863442-B2
Application number	US-201514802055-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Jul 17, 2015
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

An aspirator system is disclosed comprising a collapsible/extendable aspirator air channel, wherein a burstable seal for entrapping air across the exit channel is provided, wherein said entrapped air creates a pressure causing the aspirator to extend to its extended state, whereupon the seal bursts and opens the air channel.

First claim

The invention claimed is:

1. An aspirator system comprising:
an air channel movable between a collapsed state and an extended state, said air channel comprising:
an aspirator body having a longitudinal axis,
an aspirator barrel in translating engagement with said aspirator body, and
a nozzle assembly disposed within said aspirator body, and configured to direct gas through said air channel; and
a pressure removable block, configured to seal said air channel in said collapsed state,
wherein said aspirator barrel is configured to extend from said aspirator body in response to a first pressure, said first pressure created in response to gas directed through said air channel against said pressure removable block, and
wherein said pressure removable block is configured to unseal said air channel in response to a second pressure, said second pressure created as gas is directed through said air channel against said pressure removable block, wherein said pressure removable block is a rupturable seal configured to tear upon application of said second pressure and bonded at an opening of said aspirator barrel.

2. The aspirator system of claim 1 , wherein said aspirator barrel is configured to extend from said aspirator body from a first axial length to a second axial length that is longer than the first axial length along said longitudinal axis, wherein said second pressure is created upon extension of said aspirator barrel to said second axial length.

3. The aspirator system of claim 2 , said aspirator body further comprising a rim configured to prevent said aspirator barrel from further translation upon extension of said aspirator barrel to said second axial length.

4. The aspirator system of claim 1 , wherein said second pressure is greater than said first pressure.

5. The aspirator system of claim 1 , wherein said rupturable seal is a fabric.

6. The aspirator system of claim 1 , said rupturable seal comprising a weakened segment, wherein said rupturable seal is designed to tear at said weakened segment.

7. The aspirator system of claim 1 , said aspirator barrel comprising an air channel exit, said pressure removable block disposed at the air channel exit and configured to seal said air channel at said air channel exit.

8. The aspirator system of claim 1 , said aspirator barrel being collapsible, and at least partially retainable within said aspirator body.

9. The aspirator system of claim 1 , further comprising an inflatable device configured to receive gas from said air channel.

10. The aspirator system of claim 1 , said aspirator barrel comprising a first telescoping segment and a second telescoping segment,
said first telescoping segment configured to extend from and collapse into said aspirator body, and
said second telescoping segment configured to extend from and collapse into said first telescoping segment.

11. The aspirator system of claim 1 , said air channel further comprising an interior lining member configured to fold in the collapsed state, and extend to form a smooth interior of said air channel in the extended state.

12. The aspirator system of claim 11 , said interior lining member comprising a fabric.

13. The aspirator system of claim 1 further comprising an extension holder configured to apply a mechanical extension force on said air channel.

14. The aspirator system of claim 13 , said extension holder comprising a spring.

Assignees

• Goodrich Corp

Inventors

• Ruegsegger Nick
• Rautenbach Helperus Ritzema

Classifications

• F04F5/48

  Control · CPC title

• F04F5/46

  Arrangements of nozzles · CPC title

• F04F5/20

  for evacuating · CPC title

• B64D25/14 Primary

  Inflatable escape chutes · CPC title

• B63C2009/048

  Reversible open life-rafts · CPC title