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 Title: |
US4966139:
Oxygen breathing bag simulator
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Swiatosz, Edmund; Maitland, FL
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| Assignee: |
The United States of America as represented by the Secretary of the Navy, Washington, DC
other patents from UNITED STATES OF AMERICA, NAVY (597270) (approx. 13,239)
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| Published / Filed: |
1990-10-30
/ 1989-06-23
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| Application Number: |
US1989000374110
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| IPC Code: |
Advanced:
A62B 27/00;
Core:
more...
IPC-7:
A62B 7/00;
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| U.S. Class: |
Current:
128/205.23;
128/204.28;
128/205.24;
Original:
128/205.23;
128/205.24;
128/204.28;
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| Field of Search: |
128/204.26,204.28,205.12,205.13,205.14,205.16,205.24,202.26
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| Priority Number: |
| 1989-06-23 |
US1989000374110 |
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| Abstract: |
A valve within an oxygen breathing apparatus (OBA) simulator to simulate the loss of oxygen supply that occurs in an operational OBA when the user accidentally deflates the bag(s), such as by impact. The valve is within the tubular conduit inside the simulator's airbag and is held in its open position when the airbag is inflated by a cord attached to the inner surface of the bag, but is spring loaded to close and block the oxygen path through the conduit when the attachment cord is slackened.
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| Attorney, Agent or Firm: |
Adams, Robert W. ;
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| Primary / Asst. Examiners: |
Burr, Edgar S.; Lewis, Aaron J.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 6 claims |
What is claimed is:
1. A simulator for training a trainee in the use of a self-contained operational breathing bag device that has an inflatable bag from which a supply of breathable gas is available to the user, wherein the simulator comprises an inflatable bag apparatus having first and second inlets, and first and second outlets; a continuous tubular conduit inside the bag apparatus that forms an uninterrupted path communicating breathable air from said first inlet to said first outlet; means detachably fixed to said first inlet for providing the only source of air to said conduit; a face piece having an inhalation port connected to said first outlet for coupling the air communicated by said conduit to the trainee; and, a valve within said continuous conduit capable of regulating the flow of air through the conduit; attachment means connecting said valve to said inflatable bag for opening the valve to permit the flow of air in response to inflation of the bag, and for closing the valve to prevent the flow in response to deflation of the bag, such that the temporary deprivation of gas to the user that is caused in the operational device by deflation of its bag, is simulated by the simulator; wherein said face piece includes an exhalation port connected to said second inlet of the bag apparatus such that the trainee's exhalation provides the air to inflate the apparatus, and said second outlet of the apparatus is a relief valve to vent excess pressure from the bag apparatus.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 1 U.S. patent(s) that reference this one
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