CA976055A - Demand valve assembly - Google Patents
Demand valve assemblyInfo
- Publication number
- CA976055A CA976055A CA167,314A CA167314A CA976055A CA 976055 A CA976055 A CA 976055A CA 167314 A CA167314 A CA 167314A CA 976055 A CA976055 A CA 976055A
- Authority
- CA
- Canada
- Prior art keywords
- valve assembly
- demand valve
- demand
- assembly
- valve
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/1402—Check valves with flexible valve members having an integral flexible member cooperating with a plurality of seating surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
- A61M16/203—Proportional
- A61M16/204—Proportional used for inhalation control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
- A61M16/203—Proportional
- A61M16/205—Proportional used for exhalation control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/206—Capsule valves, e.g. mushroom, membrane valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/207—Membrane valves with pneumatic amplification stage, i.e. having master and slave membranes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/106—Filters in a path
- A61M16/107—Filters in a path in the inspiratory path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K2200/00—Details of valves
- F16K2200/20—Common housing having a single inlet, a single outlet and multiple valve members
- F16K2200/202—Common housing having a single inlet, a single outlet and multiple valve members one valve arranged inside of the valve member of a second valve, e.g. nested valve members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2544—Supply and exhaust type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7758—Pilot or servo controlled
- Y10T137/7762—Fluid pressure type
- Y10T137/7764—Choked or throttled pressure type
- Y10T137/7766—Choked passage through main valve head
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7781—With separate connected fluid reactor surface
- Y10T137/7782—With manual or external control for line valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
- Y10T137/7841—One valve carries head and seat for second valve
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23850272A | 1972-03-27 | 1972-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA976055A true CA976055A (en) | 1975-10-14 |
Family
ID=22898193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA167,314A Expired CA976055A (en) | 1972-03-27 | 1973-03-26 | Demand valve assembly |
Country Status (5)
Country | Link |
---|---|
US (1) | US3795257A (en) |
JP (1) | JPS498093A (en) |
CA (1) | CA976055A (en) |
FR (1) | FR2177977B1 (en) |
GB (1) | GB1382404A (en) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4121580A (en) * | 1977-02-07 | 1978-10-24 | Robertshaw Controls Company | Squeeze bag resuscitator with air-oxygen proportionating control |
US4374521A (en) * | 1980-09-12 | 1983-02-22 | Puritan-Bennett Corporation | Squeeze bag type resuscitator apparatus |
US4501271A (en) * | 1981-10-13 | 1985-02-26 | John William Spear | Resuscitator |
US4774941A (en) * | 1983-05-04 | 1988-10-04 | Intertech Resources Inc. | Resuscitator bag |
US4572175A (en) * | 1983-07-20 | 1986-02-25 | Flynn Stephen D | Multi-mode demand valve |
GB2195900B (en) * | 1986-09-06 | 1991-07-24 | Peter Joseph Jackson | Pilot operated valves |
US5002050A (en) * | 1986-09-17 | 1991-03-26 | Mcginnis Gerald E | Medical gas flow control valve, system and method |
US4971108A (en) * | 1986-09-19 | 1990-11-20 | Mark Gottlieb | Inhalation responsive gas pressure regulator |
US4832016A (en) * | 1988-03-10 | 1989-05-23 | Kent Berg | Remotely controlled actuator for a resuscitator |
US4898174A (en) * | 1988-05-03 | 1990-02-06 | Life Support Products, Inc. | Automatic ventilator |
DE4106071A1 (en) * | 1991-02-27 | 1992-09-03 | Morlock Gmbh | Membrane unit with housing and cover - has clinch connection and feeder pipe for the hydraulic or pneumatic medium |
DE4120609C1 (en) * | 1991-06-20 | 1993-02-11 | Wiest, Peter P., Dipl.-Ing., 1000 Berlin, De | Gas connector for insufflation appts. - has pressure reducer, safety valve, pressure indicator and gas outlet union with magnetic valve |
EP0702580A1 (en) * | 1992-09-11 | 1996-03-27 | Life Support Products, Inc. | Demand valve with reduced manual flow control |
JPH06191481A (en) * | 1992-12-22 | 1994-07-12 | Zexel Corp | Mouth piece for semi-closed type breather |
US5438980A (en) * | 1993-01-12 | 1995-08-08 | Puritan-Bennett Corporation | Inhalation/exhalation respiratory phase detection circuit |
NL9400102A (en) * | 1994-01-21 | 1995-09-01 | Pim De Bruijn | Breathing air supply system. |
US5787882A (en) * | 1996-06-21 | 1998-08-04 | Computer Assisted Engineering | Demand valve resuscitator |
US5749358A (en) * | 1996-10-10 | 1998-05-12 | Nellcor Puritan Bennett Incorporated | Resuscitator bag exhaust port with CO2 indicator |
USD424193S (en) * | 1998-10-15 | 2000-05-02 | Ntc Technology, Inc. | Airway valve |
US6098622A (en) * | 1998-10-15 | 2000-08-08 | Ntc Technology Inc. | Airway valve to facilitate re-breathing, method of operation, and ventilator circuit so equipped |
US6123674A (en) * | 1998-10-15 | 2000-09-26 | Ntc Technology Inc. | Airway valve to facilitate re-breathing, method of operation, and ventilator circuit so equipped |
US6634357B1 (en) | 2000-02-22 | 2003-10-21 | Life Support Technology, Inc. | Resuscitation valve assembly |
US6364161B1 (en) * | 2000-09-27 | 2002-04-02 | Victor Equipment Company | Oxygen conserver |
US7066175B2 (en) * | 2001-05-07 | 2006-06-27 | Emergent Respiratory Products, Inc. | Portable gas powered positive pressure breathing apparatus and method |
US20040089294A1 (en) * | 2002-11-12 | 2004-05-13 | Hsing-Chi Hsieh | Diaphragm holder for pressure regulator of air tank used in diving |
GB2402458B (en) * | 2003-06-06 | 2006-04-19 | Internat Safety Instr Inc | Demand valves for breathing apparatus |
DE102007012729B3 (en) * | 2007-03-16 | 2008-07-03 | Dräger Medical AG & Co. KG | Dosing valve for breathing gas, has preliminary pressure compensation, valve drive, working membrane between preliminary pressure chamber and back pressure chamber |
GB201106479D0 (en) * | 2011-04-18 | 2011-06-01 | Draeger Safety Uk Ltd | Diaphragm |
CN103182129B (en) * | 2011-12-30 | 2015-12-09 | 北京谊安医疗***股份有限公司 | Bypass valve |
US10675433B2 (en) * | 2017-05-25 | 2020-06-09 | MGC Diagnostics Corporation | Solenoid controlled respiratory gas demand valve |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA660930A (en) * | 1963-04-09 | F. Hosford Norman | Respiratory apparatus | |
US2954793A (en) * | 1958-09-12 | 1960-10-04 | Henry W Seeler | Pressure compensated inhalationexhalation valve for pressure breathing mask |
US3232304A (en) * | 1962-03-19 | 1966-02-01 | Scott Aviation Corp | Inhalation/exhalation valve unit having light movable components |
US3285261A (en) * | 1962-12-21 | 1966-11-15 | Robertshaw Controls Co | Breathing demand regulator |
US3435839A (en) * | 1965-05-21 | 1969-04-01 | Elder Oxygen Co Inc | Backflow bypassing valve for breathing apparatus |
US3493010A (en) * | 1967-10-25 | 1970-02-03 | H & H Thermostats Inc | Control valve for fluid dispensing system |
US3526360A (en) * | 1968-10-18 | 1970-09-01 | Itt | Main line valve with pilot regulator |
-
1972
- 1972-03-27 US US00238502A patent/US3795257A/en not_active Expired - Lifetime
-
1973
- 1973-03-26 FR FR7310743A patent/FR2177977B1/fr not_active Expired
- 1973-03-26 JP JP48034423A patent/JPS498093A/ja active Pending
- 1973-03-26 GB GB1436873A patent/GB1382404A/en not_active Expired
- 1973-03-26 CA CA167,314A patent/CA976055A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3795257A (en) | 1974-03-05 |
FR2177977A1 (en) | 1973-11-09 |
FR2177977B1 (en) | 1977-02-11 |
JPS498093A (en) | 1974-01-24 |
GB1382404A (en) | 1975-01-29 |
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