Gas activated emergency vision device

• US 8,213,101 B2
• Filed: 08/26/2009
• Issued: 07/03/2012
• Est. Priority Date: 03/18/2005
• Status: Active Grant

• Current Assignee: VisionSafe Corp.
• Original Assignee: Bertil R.L. Werjefelt
• Inventors: Werjefelt, Bertil R. L.
• Primary Examiner(s): Dinh, Tien
• Assistant Examiner(s): Fabula, Michael A
• Application Number:
  US12/461,843
• Publication Number:
  US 20090316390A1
• Time in Patent Office: 1,042 Days
• Field of Search: 362/109, 244/118.5, 359/894, 359/895, 91/5, 92/78, 92/89, 92/90, 92/93, 92/94
• US Class Current: 359/894
• CPC Class Codes: A62B 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: G02B 23/20 Collapsible housings G02B23/18 takes precedence
• CPC Class Codes: G02B 27/04 having collapsible parts

Abstract

An emergency vision device, comprises a collapsible tube made of airtight material and having an expanded form and a deflated stowage form; first and second clear members disposed at respective first and second ends of the tube to enable a user to see through the tube and observe a source of information at a distal end of the tube while smoke or other particulate matter is in the environment; and a portable gas cylinder having compressed clear gas and an outlet operably connected to the interior of the tube. The gas cylinder is operable to release the clear gas to fill the interior of the tube to expand the tube to the expanded form.

Claims

1. An emergency vision device, comprising:

a) a collapsible tube made of airtight material and having an expanded form and a deflated stowage form;

b) first and second clear members disposed at respective first and second ends of said tube to enable a user to see through said tube and observe a source of information at a distal end of said tube while smoke or other particulate matter is in the environment;

c) a portable gas cylinder having compressed clear gas;

d) a valve assembly connected to said gas cylinder and having an outlet operably connected to the interior of said tube;

e) said valve assembly being operable to release said clear gas to fill the interior of said tube to expand said tube to said expanded form;

f) a hollow handle operably secured to said tube; and

g) said cylinder is disposed within said handle.

2. An emergency vision device as in claim 1, and further comprising a closable port operably associated with said tube to allow the gas within said tube to be exhausted out when said tube is deflated to said stowage form.

3. An emergency vision device as in claim 1, and further comprising a light source to aid the user to see the source of information.

4. An emergency vision device as in claim 3 wherein said light source is disposed at one end of said tube.

5. An emergency vision device as in claim 3, wherein:

a) said light source is a flashlight; and

b) straps are secured to said tube and said flashlight.

6. An emergency vision device as in claim 1, wherein said tube is cylindrical.

7. An emergency vision device as in claim 1, wherein said tube is an airtight fabric.

8. An emergency vision device as in claim 1, wherein said clear members are plastic.

9. An emergency vision device as in claim 1, wherein said tube is transparent.

10. An emergency vision device as in claim 1, wherein:

a) said valve assembly includes a lever; and

b) said lever is operated to release gas into said tube.