EP4350204A1 - Commutateur à gaz avec manomètre et collecteur avec commutateur à gaz avec manomètre - Google Patents

Commutateur à gaz avec manomètre et collecteur avec commutateur à gaz avec manomètre Download PDF

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Publication number
EP4350204A1
EP4350204A1 EP23200863.1A EP23200863A EP4350204A1 EP 4350204 A1 EP4350204 A1 EP 4350204A1 EP 23200863 A EP23200863 A EP 23200863A EP 4350204 A1 EP4350204 A1 EP 4350204A1
Authority
EP
European Patent Office
Prior art keywords
manometer
gas
cam shaft
switcher
bearing
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.)
Pending
Application number
EP23200863.1A
Other languages
German (de)
English (en)
Inventor
Sukru Cermen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4350204A1 publication Critical patent/EP4350204A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F17C13/045—Automatic change-over switching assembly for bottled gas systems with two (or more) gas containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by vessel
    • F17C2227/042—Methods for emptying or filling vessel by vessel with change-over from one vessel to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0171—Trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space
    • F17C2270/0189—Planes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing

Definitions

  • the invention relates to a gas switcher with manometer and a collector with gas switcher with manometer, that is designed especially to be used in land ambulances, sea ambulances and air (aircraft, helicopter) ambulances, takes up less space by saving material compared to known systems, prevents forced pressure leaks by making the manometer positioned directly on the switcher more protected, and is practical to install and use, in which the manometer switcher can be used independently (alone) or as collector with gas switcher with manometer by mounting the manometer directly on the switcher so that the knob controlling the switcher and the manometer are on the same axis.
  • the pressure gauge (manometer) is usually located on the collector (distributor), which takes up an extra space and causes the collector to be long (and therefore more material to be used).
  • the pressure gauge is more unprotected and vulnerable to impacts when it is positioned on the collector, mostly when the vehicle is on move. This may cause early wear and gas leaks. If the pressure gauge (manometer) is not at an easily visible angle on the collector, it causes difficulties for medical teams during gas pressure control in moving vehicles.
  • the system that is the subject of the invention was designed by taking these problems into consideration.
  • the aim here is to position the manometer on the oxygen switcher, to keep the manometer indicator constant regardless of the button when the button is turned, and to clearly measure the instantaneous pressure of the gas passing through the switcher. In this way, the user (healthcare worker, caregiver) will be able to instantly monitor the gas used.
  • gas switcher with manometer can be used alone (independent / stand-alone) or can be used acuplated by side of the collector or mounted directly on the collector. It can be positioned anywhere desired, away from the collector in cases where direct connection to the collector is not desired; in this case, the gas flow is provided by tubes (hoses).
  • material savings are achieved as there is no need for the part where the pressure gauge (manometer) is mounted by eliminating the section reserved for the pressure gauge (manometer). Or it provides the opportunity to position more oxygen sockets in the same size collector.
  • the gas switcher with manometer which is the subject of the invention, is a more robust product in terms of structure, since the manometer and the changer knob provide integrity.
  • the knob acts as an external shield in case of any impact, minimizing the impact on the manometer body (indicator) positioned inside. In this way, the service life of the manometer body (indicator) is extended and preventing O-ring wear that may occur due to possible impacts, the possibility of oxygen leakage from the pressure indicator (manometer) is minimised.
  • Mounting the manometer on the knob of the switcher has made the product more useful in terms of design. While turning the knob connected to the switcher mechanism, the manometer (pressure indicator) itself always remains fixed, that is, it is independent of the turn of the knob. It will provide healthcare teams with a more comfortable working opportunity as it provides convenience while monitoring the pressure gauge.
  • the subject of the invention is gas switcher with manometer, characterised by comprising switcher body (1) that has centring pin bearing (1a), opening-closing ball o-ring slot(s) (1b), gas inlet path(s) (1c), gas outlet path(s) (1d), positioning pin slot (1e), screw bearing (1f), fixing part bearing (fixing ball cavity) (1g), gas inlet channel (hole) (1h), gas outlet channel (hole) (1i,); gas passage cavity (1j) between the switcher body (1) and fixed disk (5); opening-closing ball o-ring(s) (2), centring pin (3), positioning pin (4); fixed disk (5) that has fixed disk chamfer (5a), opening-closing ball bearing(s) (5b), centring pin hole (5c), positioning pin hole (5d), hole(s) for the gas entry into the system (5e) and working cavity that prevents the friction of the cam shaft (5f); opening-closing ball(s) (6); shaft with cam (7) that has cam slot (7a), positioning pin channel (bearing)
  • the system of the invention has collector main body with switcher (1) instead of the switcher body (1).
  • the collector main body with switcher (1) when the system that is the subject of the invention is independent, it has the collector main body with switcher (1), whereas if the collector and the switcher with manometer body are made as a single piece, it has the collector main body with switcher with manometer (1).
  • the gas switcher with manometer that is the subject of the invention can be a single model (model with a single oxygen inlet) or it can be a multiple model (model with multiple oxygen inlets) depending on the place and purpose where the system will be used. These models may have a single oxygen outlet or multiple oxygen outlets, that is, there may be inlet and outlet holes in different combinations.
  • the switcher body (1) allows the gases coming from the cylinders to enter the system through the gas inlet path(s) (1c).
  • gas inlet path(s) (1c) There are gas inlet path(s) (1c) on different surfaces of the switcher body (1); depending on where the system will be positioned, the gas inlet path(s) (1c) that are not intended to be used are closed with blind plugs.
  • Figure 1 shows the side and bottom gas inlet path(s) (1c).
  • the gas inlet path(s) (1c) on the bottom surface are closed with a blind stopper and the hoses (pipes) coming from the cylinders are attached there using the gas inlet path(s) (1c) on the front surface.
  • the gas exit path(s) (1d) are also located on different surfaces; depending on where the system will be positioned, the unwanted gas outlet path(s) (1d) are closed with a blind plug and the gas is directed to the gas outlet path(s) on the other surface (1d).
  • the centring pin (3) ensures that the switcher body (1) and the fixed disk (5) are in the desired alignment (axis).
  • the function of the positioning pin (4) is to ensure that the fixed disk (5) centred inside the switcher body (1) is stopped (fixed) in the desired position and to restrict the movement of the cam shaft (7) to the desired extent.
  • the opening-closing ball(s) (6) rest on the ball roll bearing(s) / peak plane (7c) on the cam shaft (7) [at the edges of the cam slot (7a); in other words, the ball/balls (6) close the gas inlet channel(s) (1h) in the switcher body (1) by pressing on the opening-closing ball(s) o-ring(s) (2).
  • Ball rolling bearings / peak plane(s) (7c) and cam slot (7a) are designed in accordance with the diameter of the ball (6), so that the balls (6) roll more easily.
  • the system is turned on by moving the cam shaft (7) to the right or left.
  • the opening-closing ball (6) on the right rises to the cam slot (7a) under the effect of the pressure from the tube connected to that side, allowing gas to pass. Meanwhile, the other opening-closing ball (6) continues to be located on the ball roll bearing(s) / peak plane (7c). In other words, the opening-closing balls (6) with their positions according to the movement of the cam slot (7a) either allow or do not allow gas passage.
  • the gas coming to the opening-closing ball bearing(s) (5b) positioned on the fixed disk (5) enters the system from whichever of the opening-closing ball (6) is open, that is, whichever is in the cam slot (7a); the gas passes through the hole(s) for the gas entry into the system (5e) on the fixed disk (5) and reaches the gas passage cavity (1j) around the fixed disk (5), that is, the space between the fixed disk (5) and the switcher body (1). Gas circulates easily around the fixed disk (5) by means of the gas passage cavity (1j) left between the periphery of the fixed disk (5) and the switcher body (1).
  • the fixed disk chamfer (5a), designed to be positioned on the gas outlet path (1d) located at the back of the switcher body (1) allows, by means of the space it provides, the gas to pass through the gas outlet channel (hole) (1i) and exit easily through the gas outlet path (1d).
  • Our system which is the subject of the invention, ensures instantaneous monitoring of the pressure of this gas in motion by providing communication between the gas entering and exiting the system and the manometer.
  • the centring pin bearing (1a) on the switcher body (1) and the centring pin hole (5c) on the fixed disk (5) align and these two parts are centred with the centring pin (3); a gas passage cavity (1j) is created, which is the ideal space between the fixed disk (5) surroundings and the switcher body (1) for gas passage.
  • the positioning pin hole (5d) on the fixed disk (5) and the positioning pin slot (1e) on the switcher body (1) are aligned and the fixed disk (5) is fixed to the switcher body (1) with the positioning pin (4).
  • the positioning pin (4) by means of its part remaining as a protrusion on the fixed disk (5), sits (positioned) in the positioning pin channel (bearing) (7b) in the cam shaft (7) and restricts the movement of the cam shaft (7) to the specified extent. In this way, the opening-closing ball(s) (6) moves in a limited manner in the ball bearing(s) (7c).
  • the friction gasket (8) which is used to facilitate movement by minimising the friction between the cam shaft (7) and the cam shaft bearing and the manometer carrier (11), is assembled / seated on the friction plane (bearing) of the friction seal (7d).
  • the function of the friction gasket (8) is to create an oil-free mechanism by means of its sliding feature. Normally, an expensive oil that is not harmful to health could be used in this part. However, this friction gasket (8) prevents negative formations that affect the operation of the system due to oil sedimentation over time, prevents the possibility of oil particles mixing into oxygen gas, and also reduces the product cost.
  • the friction gasket (8) is made of material with a low friction coefficient and very affordable cost and is harmless to health.
  • an internal sealing o-ring (9) is attached to the internal sealing o-ring bearing (7e) on the cam shaft (7).
  • the friction gasket (8) can cover the hole that allows the gas to reach the manometer (11a5), making gas passage difficult or obstructing it. This is an undesirable situation.
  • the capillary duct (11a4) opened on the inner wall of the cam shaft bearing (11a) [at the level of the entrance of the hole that allows the gas to reach the manometer (1 1a5)] this problem is eliminated by providing gas flow between the cam shaft (7) next to the friction gasket (8) and the cam shaft bearing and manometer carrier (11).
  • the gas passing through the capillary duct (1 1a4) comes to the capillary duct pool (1 1a13) and from there it moves upwards by means of the hole / channel that allows the gas, positioned in the carrier column (11b1), to reach the manometer (11a5).
  • the gas By means of this channel (11a5) opened in the carrier column (11b1), the gas reaches the gas pool (1 1b7) and goes to the manometer (18).
  • Snap ball slot(s) / torque adjustment slot(s) (7f) ensures that the positioning given to the snap ball(s) (11a8) remains constant while turning the knob (16) and stops at the desired torque force, that is, the constant torque determined by the standards (standard: minimum 6 Newtons). In this way, the knob (16) is prevented from rotating spontaneously due to the movements of the ambulance, etc.
  • the snap ball slot(s) / torque adjustment slot(s) (7f) are removed from the environments where gas passes, that is, they do not have any contact with the gas.
  • an external sealing o-ring (10) is attached to the outer sealing o-ring bearing (11a6) to prevent gas leakage between the switcher body (1).
  • the cam shaft (7) is attached to the cam shaft bearing (11a) so that the cam slot (7a) in the pre-assembled cam shaft (7) is aligned with the fixing piece gap (11a12) in the cam shaft bearing and manometer carrier (11).
  • the upper part of the cam shaft (7) on which the friction gasket (8) and internal sealing o-ring (9) are assembled is placed inside the cam shaft bearing and the manometer carrier (11) so that the cam slot (7a) and the hole that allows the gas to reach the manometer (11a5) are in the same alignment. It is fixed by placing first the snap ball(s) (11a8) and then the snap ball spring(s) (11a9) into the snap ball(s) hole(s) (11a7) on the cam shaft bearing and manometer carrier (11) and then, by attaching the spring support ring (13) to the spring support ring bearing (11a10) in order to prevent the spring/springs from coming out.
  • the screwed clamping ring (14) is placed in such a way that the screwed clamping ring on the cam shaft bearing (11a) comes to the screw clamping ring bearing (11a11).
  • the sealing o-ring of the manometer (11b8) is placed in the sealing o-ring bearing (slot) for manometer mounting (11b5) in order to prevent forced gas leaks.
  • a lock nut (17) is attached to the manometer (18), then the manometer (18) is attached to the manometer carrier (1 1b) and tightened all the way. It is left that way if the writings on the manometer (18) are at the desired angle; if the manometer clockface view is not in the desired position, the manometer (18) is turned in the reverse direction until the desired position is reached and the lock nut (17) is tightened so that it appears in the desired position.
  • the opening-closing ball o-ring(s) (2) are placed in the opening-closing ball o-ring slot(s) (1b) on the switcher body (1).
  • the fixed disk (5) is installed by placing the positioning pin (4) into the positioning pin slot (1e) on the switcher body (1), and the centring pin (3) into the centring pin bearing (1a).
  • Opening-closing ball(s) (6) are placed on the opening-closing ball bearing(s) (5b).
  • the knob (16) is pulled up to the bottom surface of the manometer (18), and the specially designed wrench is inserted into the screwed clamping ring (17) by taking advantage of the cavity created. While the threaded zone (14a) of the screwed clamping ring (14) is placed on the screw bearing (1f) in the switcher body (1), the wrench zone (14b) is tightened with a specially designed wrench.
  • the rotating group (15) is first assembled within itself. First, the washer (15b) is attached to the rotating part (15a), then the adjustment bushing (15c). The knob (16) is lifted up to the distance between it and the manometer (18). Then, the rotating part (15a) passes through the space for rotating part (cavity) (11b2) and is attached to the hole of the rotating part (7g) in the cam shaft (7).
  • the pulled-up knob (16) is placed on the rotating part (15a) through the cavity between the slot (16b) on the knob (16), the washer (15b) and the adjustment bushing (15c), and the rotating part (15a) is tightened to the end.
  • the washer (15b) integrates with the knob (16) and closes the rotating part mounting slot (16b) opened for assembly and prevents the rotating part (15a) from being released, and also serves to distribute the pressure.
  • the rotating part (15a) is easily placed in the rotating part hole (16a) by means of the rotating part mounting slot (16b).
  • the adjustment bushing (15c) remains on the inside of the knob (16) and the washer (15b) remains on the outside.
  • the knob (16) stuck between the washer (15b) and the adjustment bushing (15c) is fixed.
  • the rotating part (15a) tightening process is completed, the end part of the rotating part (15a) is placed on the support hole (16d). In this way; although the rotating part (15a) can be installed (shorter) without being placed on the support hole (16d), the system can be operated, by making the rotation moment healthier, damage such as breakage, warping, etc. in the rotating part mounting slot (16b) and the rotating part hole (16a) is prevented under any stress.
  • Rotating group (15) comprises the rotating part (screw) (15a), which provides the connection between the knob (16) and the cam shaft (7), washer (roundel) (15b) that ensures the closure/integration of the slot opened in the knob (16), that is, the rotating part mounting slot (16b) and the adjustment bushing (15c), which enables the adjustment (centring) of the middle axis distance between the knob (16) and the cam shaft (7).
  • the head part of the rotating part (screw) (15a) also serves as a direction indicator and shows the closed/open position of the knob (16).
  • the fixing part (12) prevents the cam shaft bearing and the manometer carrier (11) from rotating on the switcher body (1).
  • cam shaft bearing and manometer carrier (11) in the system of the invention also have

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
EP23200863.1A 2022-10-04 2023-09-29 Commutateur à gaz avec manomètre et collecteur avec commutateur à gaz avec manomètre Pending EP4350204A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR202215152 2022-10-04

Publications (1)

Publication Number Publication Date
EP4350204A1 true EP4350204A1 (fr) 2024-04-10

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Application Number Title Priority Date Filing Date
EP23200863.1A Pending EP4350204A1 (fr) 2022-10-04 2023-09-29 Commutateur à gaz avec manomètre et collecteur avec commutateur à gaz avec manomètre

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE812139C (de) * 1950-01-13 1951-08-27 Rudolf Majert G M B H Umschaltventil fuer Druckbehaelter, z. B. Gasflaschen
FR1232452A (fr) * 1959-04-22 1960-10-10 Gerard Becuwe Sa Des Ets Perfectionnements aux inverseurs pour la distribution de gaz sous pression
FR2318381A1 (fr) * 1975-07-18 1977-02-11 Oxhydrique Fse Exploit Centrale de distribution de gaz sous pression a inversion entre deux sources et a rearmement automatiques
US5014733A (en) * 1990-06-14 1991-05-14 Wilson Earl L Automatic switching valve
US20030150495A1 (en) * 2002-02-12 2003-08-14 Tetsuhiko Hara Valve driving device
US20130074937A1 (en) * 2011-09-28 2013-03-28 Albert Wing Medical Gas Switchover Manifold
TR201701986U5 (tr) 2017-02-09 2018-08-27 Suekrue Cermen Çok Fonksiyonlu Oksijen Değiştirici
TR201702974U5 (tr) 2017-02-27 2018-09-21 Suekrue Cermen Oksijen gazı ekipmanlarını birleştirici parça

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE812139C (de) * 1950-01-13 1951-08-27 Rudolf Majert G M B H Umschaltventil fuer Druckbehaelter, z. B. Gasflaschen
FR1232452A (fr) * 1959-04-22 1960-10-10 Gerard Becuwe Sa Des Ets Perfectionnements aux inverseurs pour la distribution de gaz sous pression
FR2318381A1 (fr) * 1975-07-18 1977-02-11 Oxhydrique Fse Exploit Centrale de distribution de gaz sous pression a inversion entre deux sources et a rearmement automatiques
US5014733A (en) * 1990-06-14 1991-05-14 Wilson Earl L Automatic switching valve
US20030150495A1 (en) * 2002-02-12 2003-08-14 Tetsuhiko Hara Valve driving device
US20130074937A1 (en) * 2011-09-28 2013-03-28 Albert Wing Medical Gas Switchover Manifold
TR201701986U5 (tr) 2017-02-09 2018-08-27 Suekrue Cermen Çok Fonksiyonlu Oksijen Değiştirici
TR201702974U5 (tr) 2017-02-27 2018-09-21 Suekrue Cermen Oksijen gazı ekipmanlarını birleştirici parça

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