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Title: US5163422: Breathing apparatus for providing a source of breathable air in a burning structure
[ Derwent Title ]


Country: US United States of America

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15 pages

 
Inventor: Burgess, Paul D.; Boca Raton, FL 33432

Assignee: None

Published / Filed: 1992-11-17 / 1991-09-30

Application Number: US1991000769186

IPC Code: Advanced: A62B 7/12; A62B 9/00;
Core: A62B 7/00; more...
IPC-7: A61M 15/00; A62B 17/04; A62B 18/02; A62B 23/02;

U.S. Class: Current: 128/200.24; 128/201.24; 128/201.25; 128/205.25;
Original: 128/200.24; 128/201.24; 128/201.25; 128/205.25;

Field of Search: 128/200.24,201.25,201.26,204.18,204.26,205.12,205.21,205.25,206.12,201.24

Priority Number:
1991-04-03  US1991000679741

Abstract: A breathing apparatus for providing a source of breathable air in a burning structure for the firefighters or occupants trapped in the burning structure includes a hollow body member connected to a hollow piercing means for penetrating a wall of the structure. The piercing means provides orifices for receiving breathable air from an interior cavity of the wall. The breathing apparatus can be equipped with a one-way valve for permitting the transfer of air from the wall cavity to the user but prohibiting the back flow of smoke or other contaminated air through the apparatus to the clean air disposed in the wall cavity. The apparatus can also be equipped with a locking thread for securely engaging the apparatus with the pierced wall and providing sealing engagement of an annular sealing ring with the wall.

Attorney, Agent or Firm: Quarles & Brady ;

Primary / Asst. Examiners: Burr, Edgar S.; Asher, Kimberly L.

Maintenance Status: E2 Expired  Check current status

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Related Applications:
Application Number Filed Patent Pub. Date  Title
US1991000679741 1991-04-03    1992-05-05  Breathing apparatus for providing a source of breathable air in a burning structure


       
Parent Case:

CROSS-REFERENCE TO RELATED APPLICATION
    This application is a continuation in part of U.S. patent application, Ser. No. 679,741, filed Apr. 3, 1991, now U.S. Pat. No. 5,109,836.

Family: Show 2 known family members

First Claim:
Show all 7 claims
I claim:     1. A breathing apparatus for retrieving breathable air from a wall cavity in a burning building, said apparatus comprising:
  • a hollow body member;
  • a hollow piercing means operatively connected to said hollow body, said piercing means including a plurality of orifices for receiving air within the wall cavity into said hollow body, said hollow body providing an outlet port for allowing passage of air out of said hollow body to a user; and
  • valve means operatively connected to said outlet port for allowing passage out of said hollow body but prohibiting back flow of smoke and air into said hollow body.


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Forward References: Show 2 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (2)   |   Backward references (12)   |   Citation Link

Buy
PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 3pp US807597  1905-12 Carpenter   RESPIRATOR.
Get PDF - 3pp US1040311  1912-10 Halloran   AIR-SUPPLY DEVICE FOR FIREMEN.
Get PDF - 5pp US4320756  1982-03 Holmes   Fresh-air breathing device and method
Get PDF - 7pp US4331139  1982-05 Popa   Emergency breathing apparatus
Get PDF - 5pp US4373522  1983-02 Zien  Zien Mechanical Contractors Emergency fresh air supply device
Get PDF - 7pp US4467796  1984-08 Beagley   Emergency breathing air supply system and apparatus
Get PDF - 6pp US4608975  1986-09 Tannatta   Emergency breathing apparatus
Get PDF - 6pp US4640278  1987-02 Barry   Emergency air access and signal
Get PDF - 7pp US4774939  1988-10 Disney   Emergency breathing and warning device
Get PDF - 10pp US4901715  1990-02 Mulcahy   Apparatus and method for breathing through the soil-stack during a high-rise fire
Get PDF - 13pp US4905684  1990-03 Heffer  Geor-Gina Fume Protection Devices Inc. Fume protection device
Get PDF - 10pp US4974584  1990-12 Goodnoe   Emergency air supply assembly for trapped fire fighters
       
Foreign References:
Buy
PDF
Publication Date IPC Code Assignee   Title
Buy PDF- 6pp GB2214820 1989-09  A62B 7/00 DENNIS JOHN * HUGHES BREATHING-MASK FOR EMERGENCY USE DURING FIRES 


Other Abstract Info: DERABS G92-174731

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