GB1272113A - Improvements in or relating to gas delivery apparatus - Google Patents
Improvements in or relating to gas delivery apparatusInfo
- Publication number
- GB1272113A GB1272113A GB4408769A GB4408769A GB1272113A GB 1272113 A GB1272113 A GB 1272113A GB 4408769 A GB4408769 A GB 4408769A GB 4408769 A GB4408769 A GB 4408769A GB 1272113 A GB1272113 A GB 1272113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inlet
- gas
- tube
- duct
- close
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
- G05D7/0113—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element acting as a valve
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/02—Valves
- A62B9/022—Breathing demand regulators
- A62B9/027—Breathing demand regulators pilot operated, i.e. controlled by valve means sensitive to a reduced downstream pressure
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
1,272,113. Respiratory appliances. NORMALAIR-GARRETT Ltd. 24 Aug., 1970 [5 Sept., 1969], No. 44087/69. Heading A5T. [Also in Division G3] A gas delivery apparatus includes a delivery duct 13, a sliding tube 18, a first inlet 11 for a first gas and a second inlet 15 for a second gas which admixes with the first gas, resilient means 19 urging the tube 18 to close off the second inlet, and a tapping 21 whereby gas from the first inlet may overcome the resilient means to keep the second inlet open. The apparatus may be used to supply oxygen admixed with air to an aviator from ground level to, say, 35,000 ft. when a pressure responsive valve 26 is opened to release gas from a space 22 and allow the tube 18 to close the second inlet so that pure oxygen is supplied to the duct 13. The tube may also be controlled by a manually operated bleed valve 25. The oxygen passes into the delivery duct by way of a demand valve 14.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4408769A GB1272113A (en) | 1969-09-05 | 1969-09-05 | Improvements in or relating to gas delivery apparatus |
DE19702041288 DE2041288A1 (en) | 1969-09-05 | 1970-08-20 | |
FR7032018A FR2060880A5 (en) | 1969-09-05 | 1970-09-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4408769A GB1272113A (en) | 1969-09-05 | 1969-09-05 | Improvements in or relating to gas delivery apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1272113A true GB1272113A (en) | 1972-04-26 |
Family
ID=10431701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4408769A Expired GB1272113A (en) | 1969-09-05 | 1969-09-05 | Improvements in or relating to gas delivery apparatus |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2041288A1 (en) |
FR (1) | FR2060880A5 (en) |
GB (1) | GB1272113A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE31785E (en) * | 1978-08-07 | 1985-01-01 | Figgie International, Inc. | Breathing valve assembly with diaphragm control of the exhaust ports |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8404447D0 (en) * | 1984-02-20 | 1984-03-28 | Normalair Garrett Ltd | Molecular sieve-type gas separation systems |
-
1969
- 1969-09-05 GB GB4408769A patent/GB1272113A/en not_active Expired
-
1970
- 1970-08-20 DE DE19702041288 patent/DE2041288A1/de active Pending
- 1970-09-03 FR FR7032018A patent/FR2060880A5/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE31785E (en) * | 1978-08-07 | 1985-01-01 | Figgie International, Inc. | Breathing valve assembly with diaphragm control of the exhaust ports |
Also Published As
Publication number | Publication date |
---|---|
DE2041288A1 (en) | 1971-03-11 |
FR2060880A5 (en) | 1971-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |