US20100089400A1 - Valve apparatus for movable oxygen cylinder - Google Patents
Valve apparatus for movable oxygen cylinder Download PDFInfo
- Publication number
- US20100089400A1 US20100089400A1 US12/385,337 US38533709A US2010089400A1 US 20100089400 A1 US20100089400 A1 US 20100089400A1 US 38533709 A US38533709 A US 38533709A US 2010089400 A1 US2010089400 A1 US 2010089400A1
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- United States
- Prior art keywords
- oxygen
- path
- valve
- oxygen cylinder
- check valve
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Classifications
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- 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
- F16K15/02—Check valves with guided rigid valve members
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
- F16K1/304—Shut-off valves with additional means
- F16K1/305—Shut-off valves with additional means with valve member and actuator on the same side of the seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
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- 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
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- 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
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87233—Biased exhaust valve
- Y10T137/87241—Biased closed
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
- This application claims the benefit of Korean Patent Application No. 10-2008-0100151, filed on Oct. 13, 2008, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a valve apparatus, an more particularly, to a valve apparatus which is installed in a movable oxygen cylinder so as to be used as a post valve for an oxygen generation system for household use or a post valve for general medical care.
- 2. Description of the Related Art
- According to a lot of standards established by the Compressed Gas Association (CGA), a post valve for medical care which is combined with an ambulatory oxygen cylinder adopts a particularly different valve, gas line, connector considering the kind of gas which is used therein. For example, outlet connect fittings for a gas cylinder are designated according to CGA-870 regarding the gas cylinder in which 93% oxygen has been charged and CGA-950 regarding the gas cylinder in which the gas for medical care has been charged, respectively. As these standards are designated as size of fittings that are incompatible with one another, the fittings are prevented from improperly crossing and being connected with each other.
- In this case, a CGA-870 post valve includes a CGA-870 port in order to supply oxygen discharged from an oxygen cylinder to a patient. According to regulation of the American Food and Drug Administration (FDA), an oxygen generation apparatus for household use is made to prevent it from being connected with the CGA-870 port in order to charge oxygen. Accordingly, a valve which has a separate single charge port in a cylinder has been used in order to charge oxygen.
- By the way, a general valve in which a regulator has not been built is not been fitted with the CGA-870 port in the case of the single charge port valve, and thus includes a special regulator. The valve in which the special regulator has been built is expensive. As well, since width of selection of an apparatus which a user (or a patient) can install in an oxygen cylinder is greatly reduced, use of a valve having a single charge port decreases rapidly.
- A valve which includes a CGA-870 port together with a charge port through which oxygen can be charged is disclosed in U.S. Pat. No. 6,386,235, in order to solve these problems.
- By the way, if a check valve which is installed in the inside of a valve body in the case of the conventional valves, the entire valve should be separated from the cylinder and then the check valve should be maintained, repaired and replaced. As a result, a troublesome work may be caused. Also, if foreign matters are included in oxygen discharged through the CGA-870 port, a conventional valve filters out the foreign matters through a filter in a regulator connected with the CGA-870 port, but there is a limit to raise cleanliness of oxygen.
- Moreover, the conventional valve can be used only for a post valve for an oxygen generation system for household use, but cannot be used for a post valve for a general medical care. Accordingly, when an oxygen cylinder is used for medical care, there is a problem that an additional post valve for general medical care should be provided for a prospective customer.
- To overcome inconveniences of the conventional art, it is an object of the present invention to provide a valve apparatus for a movable oxygen cylinder, which can do a function of a post valve for an oxygen generation system for household use and a post valve for general medical care at the same time.
- It is another object of the present invention to provide a valve apparatus for a movable oxygen cylinder, which possesses a check valve in a charge adapter so as to satisfy a FDA regulation which requires that an oxygen generation apparatus for household use is installed in a CGA-870 port to thus prevent oxygen from being charged into an oxygen cylinder, in the case that the valve apparatus is used for a post valve for an oxygen generation system for household use.
- It is still another object of the present invention to provide a valve apparatus for a movable oxygen cylinder, which can supply oxygen discharged from a cylinder for a patient at the state where high cleanliness is maintained.
- It is yet another object of the present invention to provide a valve apparatus for a movable oxygen cylinder, which can maintain and repair a check valve easily and quickly, in the case that the check valve is out of order.
- To accomplish the above object of the present invention, according to an aspect of the present invention, there is provided a valve apparatus for a movable oxygen cylinder, the valve apparatus comprising:
- a valve body whose one side is combined with the movable oxygen cylinder, and which comprises an opening which communicates with a discharge port at the other side therein along a first path, an insertion space, and a second path, in sequence lengthily from one side, to thus discharge oxygen discharged from the oxygen cylinder through the discharge port, and which is opened outside from the insertion space provided between the first path and the second path;
- a post valve which is installed at the other side of the valve body, and which opens and closes the upper end of the second path which communicates from the oxygen cylinder to the discharge port according to operation of a lever, to thus control discharge of oxygen; and
- a charge adapter whose one side is detachably installed in the opening of the insertion space, and which comprises a third path which is formed lengthily and a fourth path whose one side communicates with the third path and other side communicates with the first path and the insertion space, and a first check valve which charges oxygen supplied from the outside into the oxygen cylinder along the third path, the fourth path and the first path, in the case that the check valve is installed along the third path and thus closes the second path, and a second check valve which discharges oxygen supplied from the oxygen cylinder into the discharge port along the first path, the fourth path, the insertion space and the second path, in the case that the check valve is installed along the fourth path and thus opens the second path,
- wherein the first check valve interrupts oxygen discharged from the oxygen cylinder from reversely flowing in the charging direction of the charge adapter, and the second check valve interrupts oxygen from being charged into the oxygen cylinder through the discharge port.
- Preferably but not necessarily, the charge adapter comprises:
- an adapter body whose rear end is detachably combined with the entrance of the insertion space of the valve body, and with the front end of which an oxygen generation apparatus is selectively combined, and which has a hollow portion which communicates with an oxygen influx hole lengthily therein;
- the first check valve which is installed in the hollow portion of the adapter body, in which a first communication hole which communicates with the oxygen influx hole is provided in the third path, and which makes the first communication hole opened, and interrupts the oxygen discharged from the oxygen cylinder from reversely flowing in the charging direction of the charge adapter, when the oxygen supplied from the outside is charged into the oxygen cylinder;
- a check plug whose one side is combined with the hollow portion of the adapter body, in which a second communication hole is provided in the fourth path which communicates with the third path, and which has at least one third communication hole which communicates with the first path from the fourth path and at least one fourth communication hole which communicates with the second path through the insertion space from the fourth path; and
- the second check valve which is installed in the fourth path of the check plug, and which makes the second communication hole opened, and interrupts the oxygen from being charged into the oxygen cylinder through the discharge port of the valve body, when the oxygen of the oxygen cylinder is discharged through the discharge port.
- Preferably but not necessarily, the valve apparatus further comprises a filter which is installed in the fourth path, and which filters impurities included in the oxygen which is guided into the second path of the valve body through the second communication hole from the oxygen cylinder.
- Preferably but not necessarily, the valve apparatus further comprises a pre-filter for filtering the impurities which flow into the first communication hole through the oxygen influx hole when the oxygen is charged.
- Preferably but not necessarily, the first check valve comprises:
- a check valve guide unit which is installed in the hollow portion of the adapter body, in which first and second grooves which communicate with each other through the first communication hole are formed in the inner circumferential portion of the third path which communicates with the oxygen influx hole;
- a stopper which is installed adjacently at the rear end of the check valve guide unit which is installed in the hollow portion of the adapter body, and which has a guide hole which is disposed concentrically with the center of the first communication hole of the check valve guide unit therein; and
- an actuator in which a valve head, a flange unit, a body unit and a guide rod are integrally formed in sequence, and which is installed elastically in the first groove, and in which the valve head selectively contacts the first communication hole and the guide rod is slid along the guide hole of the stopper, so as to make the first communication hole opened and to interrupt the oxygen discharged from the oxygen cylinder from reversely flowing in the charging direction of the charge adapter, when oxygen is charged into the oxygen cylinder.
- Preferably but not necessarily, the second check valve is formed of a spherical ball which is elastically installed so as to selectively open and close the second communication hole which is provided in the fourth path of the check plug according to whether or not oxygen is discharged.
- Preferably but not necessarily, the valve apparatus performs to charge oxygen into the oxygen cylinder through the discharge port, in the case that a closing bolt closing the opening of the insertion space is engaged instead of the charge adapter.
- Preferably but not necessarily, the discharge port is a CGA-870 port which supplies oxygen for a patient.
- Preferably but not necessarily, the first check valve has one input and one output and the second check valve has two inputs and one input.
- According to another aspect of the present invention, there is provided a valve apparatus for a movable oxygen cylinder, the valve apparatus comprising:
- a valve body whose one end is detachably combined with the movable oxygen cylinder, and which comprises a first path which is formed lengthily therein and whose one side communicates with the oxygen cylinder, a second path which is formed lengthily therein and whose one side communicates with a discharge port, and an insertion space whose one side communicates with an opening which is opened outside and whose other side communicates with the other sides of the first and second paths, respectively;
- a post valve which is installed at the other end of the valve body, and which opens and closes the upper end of the second path which communicates from the oxygen cylinder to the discharge port according to operation of a lever, to thus control discharge of oxygen; and
- a charge adapter whose one side is detachably installed in the opening of the insertion space, and which comprises a first check valve which charges oxygen supplied from the outside into the oxygen cylinder in the case that the post valve closes the second path and a second check valve which discharges oxygen supplied from the oxygen cylinder into the discharge port in the case that the post valve opens the second path,
- wherein the first check valve interrupts oxygen discharged from the oxygen cylinder from reversely flowing in the charging direction of the charge adapter, and the second check valve interrupts oxygen from being charged into the oxygen cylinder through the discharge port.
- Preferably but not necessarily, the charge adapter comprises:
- an adapter body whose rear end is detachably combined with the entrance of the insertion space of the valve body, and with the front end of which an oxygen generation apparatus is selectively combined, and which has a third path which communicates with an oxygen influx hole lengthily therein;
- the first check valve which is installed in the third path inside the adapter body, and which makes the third communication hole opened, and interrupts the oxygen discharged from the oxygen cylinder from reversely flowing in the charging direction of the charge adapter, when the oxygen supplied from the outside is charged into the oxygen cylinder;
- a check plug which is installed at the rear end of the first check valve inside the adapter body, and which has a fourth path whose one side communicates with the third path and whose other side communicates with the first path and the insertion space therein; and
- the second check valve which is installed in the fourth path of the check plug, and which makes the fourth path opened, and interrupts the oxygen from being charged into the oxygen cylinder through the discharge port, when the oxygen of the oxygen cylinder is discharged through the discharge port.
- Preferably but not necessarily, the first and second paths are disposed on a respectively different axial line, in which the first path mutually communicates with the second path through the fourth path, the second check valves and insertion spaces installed in the check plug.
- The above and/or other aspects of the present invention will become apparent and more readily appreciated from the following description of the exemplary embodiments, taken in conjunction with the accompanying drawings in which:
-
FIG. 1 is a cross-sectional view showing to a valve apparatus including a charge adapter according to an embodiment of the present invention; -
FIG. 2 is an enlarged cross-sectional view enlarging and illustrating a charge adapter illustrated inFIG. 1 ; -
FIG. 3 is a cross-sectional view along a line III-III illustrated inFIG. 2 ; -
FIG. 4 is a cross-sectional view showing a state where a valve apparatus according to an embodiment of the present invention is used for a post valve for an oxygen generation system for household use; and -
FIG. 5 is a cross-sectional view showing a state where a valve apparatus according to an embodiment of the present invention is used for a post valve for general medical care. - Hereinbelow, a valve apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. Like reference numerals are assigned for like elements in the drawings.
- Referring to
FIG. 1 , avalve apparatus 1 according to an embodiment of the present invention includes apost valve 10 and acharge adapter 100, largely. - The
post valve 10 includes avalve body 11, alever 16, apiston rod 17 and apiston 18, avalve stem 19 and a return spring R3, and opens and closes a CGA-870port 13 according to selection of thelever 16. - The lower end of a
valve body 11 is detachably screw-connected with aninjection hole 3 of acylinder 2. A CGA-870port 13 is formed at one side of thevalve body 11, in order to supply oxygen for a patient. In addition, first andsecond paths valve body 11, along the lengthy direction of thevalve body 11 from the lower end of thevalve body 11 in order to guide oxygen flown in acylinder 2 into the CGA-870port 13. Thefirst path 15 a communicates with aninsertion space 14 where asecond check valve 190 of thecharge adapter 100 is inserted from the lower end of thevalve body 11, and thesecond path 15 b communicates with theinsertion space 14 to avalve seat unit 11 a adjacent to the CGA-870port 13. In this case, the respective centers of the first andsecond paths second paths cylinder 2 and guided along thefirst path 15 a into thesecond path 15 b through thesecond check valve 190 to be described later. - A
lever 16 is protrudingly installed at the upper end of thevalve body 11, and is hinge-combined with apiston rod 17 that is slidably installed along the inside of apiston rod support 17 a screw-connected with the upper end of thevalve body 11. In this case, apiston 18 is formed on the outer circumference of thepiston rod 17 and thepiston 18 is elastically supported by a return spring R3. Thepiston rod support 17 a prevents thepiston rod 17 and thepiston 18 from seceding from each other. - Accordingly, if a user bends the
lever 16 at right angles about thevalve body 11, thepiston rod 17 rises up by the return spring R3 and the upper end of thesecond path 15 b of the closed state is opened by thevalve stem 19. - The valve stem 19 is installed at the lower end of the
piston rod 17, and is actuated along thevalve body 11 together with thepiston rod 17 according to operation of thelever 16, to thus open and close the upper end of thesecond path 15 b that is adjacent to the CGA-870ports 13. - Referring to
FIG. 2 , thecharge adapter 100 charges oxygen into thecylinder 2 from thepost valve 10 through a separate oxygen generation apparatus (not shown), and includes anadapter body 110, a checkvalve guide unit 120, afirst check valve 130, astopper 140, acheck plug 150, afilter support 160, afilter 170, acheck valve support 180 and asecond check valve 190. - The one side of the
adapter body 110 is detachably screw-connected with anopening 12 of avalve body 11 of thepost valve 10, and ahollow portion 111 into which the checkvalve guide unit 120 and thestopper 140 are inserted in sequence along the lengthy direction of theadapter body 110 is formed in theadapter body 110. In addition, anoxygen influx hole 113 with which a supply hose of an oxygen generation apparatus (not shown) is connected is formed at the other side of theadapter body 110. Theoxygen influx hole 113 communicates with thehollow portion 111, and is simultaneously formed of a diameter smaller than that of thehollow portion 111. - Moreover, in order to make the
adapter body 110 make thecharge adapter 100 easily combined with and separated from thevalve body 11 using a wrench (not shown), awrench holder 110 a which can hold a wrench is formed on the outer circumference of theadapter body 110. - The first and
second grooves first communication hole 123 are formed at one side and other side of the checkvalve guide unit 120, respectively. Here, thefirst communication hole 123 is preferably made of a diameter smaller than those of the first andsecond grooves first groove 121 contacts thestopper 140 and thefirst check valves 130 is installed in thefirst groove 121, thesecond grooves 122 communicates with the oxygen influx hole of theadapter body 110, and a pair of a packing S1 and a seal ring S2 which is disposed therebetween are inserted into thesecond groove 122. Such a pair of a packing S1 and a seal ring S2 maintain air-tightness when oxygen is supplied since a supply hose (not shown) of an oxygen generation apparatus (not shown) is inserted into a pair of the packing S1 and the seal ring S2 through theoxygen influx hole 113. In this case, a pre-filter 125 is installed in thesecond groove 122 of the checkvalve guide unit 120, to thus interrupt impurities from flowing into thecylinder 2 in advance. - The
first check valve 130 includes a checkvalve guide unit 120, anactuator 132 where avalve head 135, aflange unit 133, abody unit 131 and aguide rod 137 are integrally formed, a return spring R1 and astopper 140. - The
actuator 132 is elastically installed in thefirst groove 121 of the checkvalve guide unit 120 by the return spring R1. Theactuator 132 makes thefirst communication hole 123 opened when oxygen is supplied through thefirst communication hole 123 of the checkvalve guide unit 120. Reversely, when oxygen is not supplied through thefirst communication hole 123 of the checkvalve guide unit 120, theactuator 132 makes thefirst communication hole 123 closed from thecylinder 2, to thus prevent oxygen from leaking through thefirst communication hole 123 from thecylinder 2. Theactuator 132 includes thebody unit 131 and theflange unit 133 in which one end of the return spring R1 is supported to one side of thebody unit 131. Thevalve head 135 for opening and closing thefirst communication hole 123 is formed at one side of theflange unit 133, and theguide rod 137 is formed at the other side of thebody unit 131. In this case, a seal ring S4 is connected between theflange unit 133 and thevalve head 135. - The
stopper 140 includes aguide hole 141 into which theguide rod 137 of thefirst check valve 130 is slidably inserted in the inside thereof. In this case, theguide hole 141 is arranged concentrically with respect to the center of thefirst communication hole 123 of the checkvalve guide unit 120, and thus thevalve head 135 exactly closes thefirst communication hole 123 when thefirst check valve 130 is actuated. Also, it is desirable that thestopper 140 is formed of a shape which is not circular in cross-section, so as to form a predetermined space SP with respect to the inner circumferential surface of aspace unit 111 when thestopper 140 is inserted into thespace unit 111 of theadapter body 110, as shown inFIG. 3 . This space SP is used as an influx path of the oxygen which passes through thefirst check valve 130. - The
check plug 150 is detachably screw-connected with one side of theadapter body 110. Thecheck plug 150 has ahollow portion 151 at one side thereof, and asecond communication hole 153 which is opened and closed by thesecond check valve 190 at the other side thereof. In addition, thecheck plug 150 has a number of third communication holes 155 which are formed at predetermined intervals along the circumferential surface thereof and simultaneously communicate with thehollow portion 151. Here, thesecond communication hole 153 is used as a path of the oxygen which is discharged from thecylinder 2, and moves to thepost valve 10, and the third communication holes 155 serve as a path which guides oxygen to be charged into thecylinder 2 and simultaneously serve as a path which discharges oxygen to thesecond communication hole 153 from thecylinder 2. - The
filter support 160 is inserted into thehollow portion 151 of the check plugs 150, and has ahollow portion 161 therein and a number ofcommunication holes 163 which communicate with thehollow portion 161 along the circumferential surface thereof. In this case, it is desirable that a number of the communication holes 163 are formed at positions corresponding to a number of the third communication holes 155 of the check plugs 150, respectively. - For example, a mesh-shaped filter or a sintering filter can be used for the
filter 170. Thefilter 170 is inserted into thehollow portion 151 of the check plugs 150, and closely adhered to thesecond communication hole 153 by thefilter support 160. Accordingly, impurities included in the oxygen discharged from thecylinder 2 to thepost valve 10 can be filtered. Moreover, thefilter 170 can be easily maintained and repaired including replacement of thefilter 170 since thecharge adapter 100 can be easily detached from or attached to thepost valve 10. - In the above-described embodiment of the present invention, the
filter 170 has been illustratively described using thefilter support 160. However, since thefilter 170 has an elastic force, a groove is provided in thehollow portion 151 of the check plugs 150 and then thefilter 170 is pressed into and engaged with the groove, instead of using thefilter support 160. - The
check valve support 180 has ahollow portion 181 into which thesecond check valve 190 is movably inserted in the inside thereof, and is detachably combined with one side of thecheck plug 150. In this case, thecheck valve support 180 is located in aninsertion space 14 formed on thevalve body 11 of thepost valve 10, when thecharge adapter 100 is installed in thepost valve 10. Here, thecheck valve support 180 communicates with thehollow portion 181, and simultaneously includes a number of fourth communication holes 183 which are formed along the circumferential surface thereof. A number of the fourth communication holes 183 play a role of a path of guiding oxygen passing through thesecond communication hole 153 of thecheck plug 150 to the CGA-870port 13 of thepost valves 10. - The
second check valve 190 is formed of a spherical ball, and is elastically installed in thecheck valve support 180 by a return spring R2. Thesecond check valve 190 opens thesecond communication hole 153 of thecheck plug 150 when oxygen is supplied from thecylinder 2 to thepost valve 10. Reversely, when oxygen is charged into thecylinder 2 through the CGA-870port 13 of thepost valve 10, thesecond check valve 190 closes thesecond communication hole 153 of thecheck plug 150. - The
oxygen influx hole 113, thefirst communication hole 123, theguide hole 141 and thespace unit 111 that are respectively formed in the lengthy direction from thecharge adapter 100 in sequence in theadapter body 110, thecheck valve guide 120, and thestopper 140 form the third path. Thehollow portion 161, a number of the communication holes 163, a number of thethird communication hole 155, thesecond communication hole 153, thehollow portion 181, and a number of thefourth communication hole 183 which are formed in thecheck plug 150, thecheck valve support 180 and thefilter support 160, respectively form the fourth path. - The
charge adapter 100 has the third path which is formed lengthily therein, and the fourth path whose one side communicates with the third path and whose other side communicates with the first path and the insertion space therein. Thefirst check valve 132 is included in the third path and thesecond check valve 190 is included in the fourth path. - Reference characters S3, S4, S5 and S6 denote seal rings which are installed in order to keep air tightness between the respective parts in
FIG. 2 , respectively. - Referring to
FIGS. 1 to 4 , operation of thevalve apparatus 1 will be described below if the valve apparatus according to the embodiment of the present invention is used for a post valve of an oxygen generation system for household use. - First of all, as shown in
FIG. 1 , thecharge adapter 100 is combined with theopening 12 of thevalve body 11, in order to prevent oxygen from leaking to the CGA-870port 13 during charging oxygen at the state where thelever 16 of thepost valve 10 is vertically erected and then thesecond path 15 b of thevalve body 11 is closed. Then, a supply hose or a charge nozzle (not shown) of an oxygen generation apparatus (not shown) is connected to theoxygen influx hole 113 of thecharge adapter 100. - Next, the oxygen supplied from the charge nozzle (not shown) flows into the
first communication hole 123 of the checkvalve guide unit 120, and thefirst communication hole 123 is opened while thefirst check valve 130 is pushed toward thestopper 140. - The supplied oxygen passes through the
first communication hole 123 and flows into a space SP between the inner circumferential surface of thespace unit 111 of the body and thestopper 140. Thereafter, the supplied oxygen passes through thecommunication hole 163 of thefilter support 160 and thethird communication hole 155 of thecheck plug 150 in sequence, and flows into thefirst path 15 a. - Accordingly, the oxygen supplied from the oxygen generation apparatus (not shown) is charged into the
cylinder 2 through thefirst path 15 a. - In the case that the oxygen charged in the
cylinder 2 is supplied for patients after the oxygen has been completely charged into thecylinder 2, a connection hose (not shown) of an oxygen supply mask (not shown) is connected with the CGA-870port 13. Thereafter, if thelever 16 is pivoted so as to be bent at right angles with respect to thevalve body 1, as shown inFIG. 4 , the piston rod that is elastically supported by the return spring R3 rises up and simultaneously the upper end of thesecond path 15 b of the state closed by thevalve stem 19 is opened. - Accordingly, the oxygen charged in the
cylinder 2 is entered into thevalve body 11 along thefirst path 15a, and then passes through thethird communication hole 155 of thecheck plug 150 and thecommunication hole 163 of thefilter support 160 in sequence. As a result, the oxygen flows into thehollow portion 161 of thefilter support 160. - If the oxygen successively passes through the
filter 170 to then be filtered and immediately proceed into thesecond communication hole 153 of thecheck plug 150, thesecond check valve 190 is pushed bypressure 190 to thus make thesecond communication hole 153 opened. - Thereafter, oxygen passes through the opened
second communication hole 153 and moves along thesecond path 15 b of thevalve body 11 and then gets out of thesecond path 15 b to then be supplied to patients by an oxygen supply mask (not shown) through the CGA-870port 13. - Meanwhile, a user uses a valve apparatus according to the present invention as a post valve for an oxygen generation system for household use. In this case, although the user connects the oxygen generation system for household use with the CGA-870
port 13 on purpose or by mistake, in order to charge oxygen into anoxygen cylinder 2, thesecond check valve 190 is pushed to thus block thesecond communication hole 153 by pressure of the charged oxygen and to thereby close thesecond communication hole 153. Therefore, the valve apparatus of this invention fits the FDA regulation which requires that although an oxygen generation apparatus for household use would be connected with the CGA-870port 13, oxygen should not be charged into theoxygen cylinder 2. - Meanwhile, referring to
FIG. 5 , thevalve apparatus 1 according to the embodiment of the present invention can be used as a post valve for general medical care, in the case that acharge adapter 100 is removed from thevalve body 11 and then theclosing bolt 200 is combined with the opening of thevalve body 11. - That is to say, in the case that the
valve apparatus 1 according to the embodiment of the present invention is used as a post valve for general medical care, oxygen of high purity which is used for medical institutions such as hospitals can be charged into theoxygen cylinder 2 through the CGA-870port 13, at the state where the upper end of thesecond path 15 b which communicates from theoxygen cylinder 2 to the CGA-870port 13, that is, the discharge port is opened, by pivoting thelever 16 of thepost valve 10 so as to be bent at right angles with respect to thevalve body 11, at an oxygen charge station as shown inFIG. 5 . Thereafter, when oxygen has been completely charged, thelever 16 is pivoted so as to become a straight line with respect to thevalve body 11 as shown inFIG. 1 , to thus close the upper end of thesecond path 15 b. - Then, the
oxygen cylinder 2 supplied to a medical institution can be used to supply oxygen for patients, by bending thelever 16 of thepost valve 10 at right angles with respect to thevalve body 11 to thereby make the upper end of thesecond path 15 b opened. - As described above, a
valve apparatus 1 according to an embodiment of the present invention can be used selectively with acharge adapter 100 and aclosing bolt 200. Thus, thevalve apparatus 1 according to the embodiment of the present invention performs functions of both a post valve for an oxygen generation system for household use and a post valve for general medical care. - Moreover, when the
second check valve 190 is repaired in the case of thevalve apparatus 1 according to the embodiment of the present invention, the valve apparatus is not separated from thecylinder 2 to then decompose the valve apparatus as in the conventional art. Instead, since only thecharge adapter 100 is separated from thevalve body 11 at the state where thevalve body 11 has been installed in thecylinder 2 to thus repair or replace thesecond check valve 190, the entire maintenance and repair can be performed quickly and easily in the present invention. - In addition, the
valve apparatus 1 according to the embodiment of the present invention performs filtering of oxygen discharged from thecylinder 2 through thefilter 170 to thus filter dust or other pollutants included in the oxygen and then supplies the filtered oxygen to the CGA-870port 13, to thereby supply clean oxygen for patients. - The present invention is applied to a valve apparatus which is installed in a movable oxygen cylinder so as to serve as functions of a post valve for an oxygen generation system for household use and a post valve for general medical care at the same time, by selectively using a charge adapter and a closing bolt.
- As described above, a valve apparatus according to the present invention selectively uses a charge adapter and a closing bolt, to thus provide an effect of serving as both a function of a post valve for an oxygen generation system for household use and a function of a post valve for general medical care.
- In addition, in the case that a valve apparatus according to the present invention is used for a post valve for an oxygen generation system for household use, a check valve is provided in a charge adapter so as to satisfy a FDA regulation which requires that although an oxygen generation apparatus for household use would be installed in a CGA-870 port, oxygen should be prevented from being charged into an oxygen cylinder.
- Further, in the case that a check valve is repaired and replaced in the present invention, a valve body is not separated from a cylinder but only a charge adapter is separated from the valve body, to thus repair and replace the check valve and to thereby maintain and repair the check valve easily and quickly.
- Moreover, oxygen discharged from a cylinder is discharged through a filter in a check valve, to thus supply oxygen of high cleanliness for a patient.
- The present invention is not limited to the above-described embodiment. It is apparent to one who has an ordinary skill in the art that there may be many modifications and variations within the same technical spirit of the invention.
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2008-0100151 | 2008-10-13 | ||
KR1020080100151A KR100901398B1 (en) | 2008-10-13 | 2008-10-13 | Valve apparatus for movable oxygen cylinder |
Publications (2)
Publication Number | Publication Date |
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US7686036B1 US7686036B1 (en) | 2010-03-30 |
US20100089400A1 true US20100089400A1 (en) | 2010-04-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/385,337 Expired - Fee Related US7686036B1 (en) | 2008-10-13 | 2009-04-06 | Valve apparatus for movable oxygen cylinder |
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US (1) | US7686036B1 (en) |
KR (1) | KR100901398B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20100179213A1 (en) * | 2008-11-11 | 2010-07-15 | Mirna Therapeutics, Inc. | Methods and Compositions Involving miRNAs In Cancer Stem Cells |
WO2021211084A1 (en) * | 2020-04-14 | 2021-10-21 | Роман Степанович КАДЕЛЯК | Apparatus for enriching air with oxygen |
CN116658813B (en) * | 2023-04-17 | 2024-04-16 | 东风汽车集团股份有限公司 | Medium storage system and vehicle |
CN116642069B (en) * | 2023-04-17 | 2024-04-02 | 东风汽车集团股份有限公司 | Connector, medium storage system and vehicle |
CN116658719A (en) * | 2023-04-17 | 2023-08-29 | 东风汽车集团股份有限公司 | Connector, medium storage system and vehicle |
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US4372343A (en) * | 1981-03-23 | 1983-02-08 | Sherwood Selpac Corp. | Pressure-retaining valve and method of retaining pressure |
US5407096A (en) * | 1992-11-30 | 1995-04-18 | Sherman Products Corporation | Apparatus for providing a portable source of high pressure gas |
US5566713A (en) * | 1993-06-03 | 1996-10-22 | Taema | Gas dispensing control assembly and gas bottle equipped with such an assembly |
US6148841A (en) * | 1999-07-08 | 2000-11-21 | Davidson; Gilbert | High pressure gas valve |
US6386235B1 (en) * | 2001-01-02 | 2002-05-14 | Chad Therapeutics | Ambulatory cylinder recharging and dispensing valve |
US20030217774A1 (en) * | 2002-05-23 | 2003-11-27 | Daniel Holt | Pressure regulated, safety bypass valved, bottle adapted fitting for lever actuated release of a regulated gas |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT248945Y1 (en) * | 1999-07-06 | 2003-03-06 | Eusebi Impianti S R L | VALVE FOR HIGH PRESSURE GAS CYLINDERS |
-
2008
- 2008-10-13 KR KR1020080100151A patent/KR100901398B1/en active IP Right Grant
-
2009
- 2009-04-06 US US12/385,337 patent/US7686036B1/en not_active Expired - Fee Related
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US1728476A (en) * | 1927-08-09 | 1929-09-17 | Beacon Devices Inc | Apparatus for charging pressure containers |
US2376348A (en) * | 1943-04-24 | 1945-05-22 | Clarence N Erickson | Resuscitator |
US2535844A (en) * | 1946-08-01 | 1950-12-26 | John H Emerson | Aspirator for administering medicine |
US2524052A (en) * | 1946-09-23 | 1950-10-03 | Specialties Dev Corp | Valve |
US3026908A (en) * | 1958-07-09 | 1962-03-27 | Bendix Corp | Three-position valve |
US4037595A (en) * | 1974-04-11 | 1977-07-26 | Elam James O | Breathing equipment such as resuscitators |
US4008716A (en) * | 1975-01-09 | 1977-02-22 | Safety Laboratories, Inc. | Gas dispensing assembly |
US4372343A (en) * | 1981-03-23 | 1983-02-08 | Sherwood Selpac Corp. | Pressure-retaining valve and method of retaining pressure |
US5407096A (en) * | 1992-11-30 | 1995-04-18 | Sherman Products Corporation | Apparatus for providing a portable source of high pressure gas |
US5566713A (en) * | 1993-06-03 | 1996-10-22 | Taema | Gas dispensing control assembly and gas bottle equipped with such an assembly |
US6148841A (en) * | 1999-07-08 | 2000-11-21 | Davidson; Gilbert | High pressure gas valve |
US6386235B1 (en) * | 2001-01-02 | 2002-05-14 | Chad Therapeutics | Ambulatory cylinder recharging and dispensing valve |
US20030217774A1 (en) * | 2002-05-23 | 2003-11-27 | Daniel Holt | Pressure regulated, safety bypass valved, bottle adapted fitting for lever actuated release of a regulated gas |
Also Published As
Publication number | Publication date |
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US7686036B1 (en) | 2010-03-30 |
KR100901398B1 (en) | 2009-06-05 |
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