Aircrew breathing gas regulators
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 28, 1993
Grant Date -
N/A
app pub date -
Nov 26, 1991
filing date -
Dec 22, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A breathing gas regulator for regulating delivery of breathing gas to an aircrew member wearing a liquid filled G-suit includes a relay valve having a diaphragm mounted valve plate for sensing G-suit hydrostatic pressure. A bleed of breathing gas is supplied to the relay valve by way of a pneumatic link and is vented to ambient through a vent outlet. As G-suit hydrostatic pressure rises due to increasing G-load the valve plate moves towards closing the vent outlet. Above a predetermined G-load, with the vent outlet closed, a pneumatic signal is generated in the pneumatic link and is applied to an end face of a valve controlling outflow from a breathing-pressure control chamber so that pressure in the control chamber increases to set a breathing gas pressure at the regulator outlet appropriate to positive pressure breathing. The regulator provides a low risk solution to interface with a liquid filled G-suit because in the event of leakage of liquid into the relay valve the liquid is able to bleed to ambient through the vent outlet.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully