US20150316076A1 - Siphon tube - Google Patents

Siphon tube Download PDF

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Publication number
US20150316076A1
US20150316076A1 US14/439,911 US201314439911A US2015316076A1 US 20150316076 A1 US20150316076 A1 US 20150316076A1 US 201314439911 A US201314439911 A US 201314439911A US 2015316076 A1 US2015316076 A1 US 2015316076A1
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United States
Prior art keywords
siphon
liquid
pump
liquid tank
container
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Abandoned
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US14/439,911
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English (en)
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Takashi Yoshida
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F10/00—Siphons
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/12—Vessels or pots for table use
    • A47G19/14—Coffee or tea pots
    • 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
    • Y10T137/2713—Siphons
    • Y10T137/2917—With means for mounting and/or positioning relative to siphon chamber

Definitions

  • This invention relates to siphon tubes, which take liquid out from a container.
  • Patent Document 1 A siphon tube which can be set to the brim of a container and take liquid out like a teapot inclining together with the container is disclosed in Embodiment 2, Patent Document 1.
  • pressure siphon means states user can take liquid out of the container like in siphon state, with some gas remaining in a siphon pipe.
  • siphon tube means a whole siphon device, covering all flow path from inside the container to the pouring end.
  • siphon pipe indicates a portion of the flow path essential to establish siphon state, from inside the container to the lowest waypoint outside the container, structured airtight.
  • Patent Document 1 Japanese Patent Publication No. 4806095
  • Patent Document 2 Japanese Patent Laid-open Publication No. H11-243809
  • Inner surface of the siphon tube need to have hydrophilicity to some extent, which affect the capillary effect to prime siphon, so there were restrictions on the material used.
  • Inner shape and dimensions of the tube also affect easiness of priming siphon, so there were issues on manufacturing: processing methods, dimension managements, etc.
  • Easiness of priming siphon is also affected by dirt of inner surface, because hydrophilicity influences easiness, as mentioned above. Cleaning it or boiling it are effective way to recover easiness, but there were some inconveniences washing it with other tableware. Bent portion of the pipe was shaped narrow, so there were a little bit difficulty washing it even with a small tapering brush.
  • Relay liquid tanks have been utilized on liquid pipelines from old times, which make liquid flow stable, buffering bad influences of unstable flow or intruding gas from upstream or downstream.
  • siphon breaks with gas back-flow passing through the lowest waypoint.
  • the back-flow volume to make siphon break can be increased. As a result, a character is obtained short time back-flow do not cause siphon break.
  • Either type of the relay liquid tank can be adopted: an open type with gas in its upper part, or a closed type filled up with liquid when operating.
  • the opened type tank has open to the atmosphere upper than the liquid surface assumed.
  • gas flow resistance is required for the degree not to obstruct the pump function.
  • Patent Document 2 There has been many proposals using pumping means for priming siphon: Patent Document 2, for example.
  • siphon pipe if it meets airtightness and strength required, now does not affect the easiness of priming siphon. It can be freely chosen from materials which have adequate temperature character and tolerance to liquids required in its application.
  • design flexibility of its shape are improved, especially on the bending top portion of the siphon tube. It can be designed, reducing manufacturing difficulty, paying attention to easy cleaning by users.
  • Enlarged inner diameter of the siphon top also reduce total flow resistance of the siphon tube. Higher pouring speed can be easily achieved than the prior art.
  • suction capacity of the pump is larger than the capacity of the siphon pipe, and not too larger than each required capacity, depending on the kind of pump.
  • Patent Document 2 is the same kind, at least about the configuration of the flow path.
  • user modulates the height of the pouring end to change pouring speed because the container (aquarium) is immovable. Now assume that user drip coffee taking hot water out from a container. User would like to vary pouring speed, with the drop between the pouring end and the coffee powder kept close to some degree.
  • user should move up and down the coffee powder with coffee dripper, synchronized with the height modulation of the pouring end. It answers the purpose in small amount dripping, but inconvenient in case like with a big cloth filter when drip large amount. Composition of this invention is suitable for such situation.
  • this invention realizes siphon tubes to take out liquid with easy priming even in bad conditions, latitude to rough operations with no siphon break, easy cleaning after use, less restrictions on designing and manufacturing about materials and shape, dimensions.
  • FIG. 1 is an illustration showing the state the siphon tube set to the container (Embodiment 1).
  • FIG. 2 is a cross section showing the state the siphon tube set to the container (Embodiment 1).
  • FIG. 3 is an illustration showing the behavior of the frame (Embodiment 1).
  • FIG. 4 is a cross section showing the state priming siphon (Embodiment 1).
  • FIG. 5 is a cross section showing siphon state (Embodiment 1).
  • FIG. 6 is a cross section showing the state taking out the liquid (Embodiment 1).
  • FIG. 7 is a cross section showing siphon state (Embodiment 2).
  • FIG. 8 is a cross section showing the state the siphon tube set to the container (Embodiment 3).
  • FIG. 9 is an illustration showing the open/close behavior of the slide plates (Embodiment 3).
  • FIG. 10 is a cross section showing the state priming siphon (Embodiment 3).
  • FIG. 11 is a cross section showing siphon state (Embodiment 3).
  • FIG. 12 is a cross section showing the state taking out the liquid (Embodiment 3).
  • FIG. 13 is a cross section showing the state the siphon tube set to the container (Embodiment 4).
  • FIG. 14 is an illustration showing the composition of the open-close plate (Embodiment 4).
  • FIG. 15 is a cross section showing the state priming siphon (Embodiment 4).
  • FIG. 16 is a cross section showing the state priming siphon (Embodiment 5).
  • FIG. 17 is a cross section showing the state priming siphon (Another Embodiment 5).
  • FIG. 18 is a cross section showing the state the siphon tube set to the container (Embodiment 6).
  • FIG. 19 is a front-view cross section of the liquid tank (Embodiment 6).
  • FIG. 20 is a cross section showing the state priming siphon (Embodiment 6).
  • FIG. 21 is a cross section showing the state the siphon tube set to the container (Embodiment 7).
  • FIG. 22 is a front-view cross section of the liquid tank (Embodiment 7).
  • FIG. 23 is a cross section showing the state priming siphon (Embodiment 7).
  • FIG. 24 is a cross section showing the state priming siphon (Embodiment 7).
  • FIG. 25 is a cross section showing the state just before priming siphon (Embodiment 8).
  • FIG. 26 is a front-view cross section of the liquid tank (Embodiment 8).
  • FIG. 27 is a cross section showing the state priming siphon (Embodiment 8).
  • FIG. 28 is a cross section showing the state priming siphon (Embodiment 8).
  • FIG. 29 is a cross section showing the state the siphon tube set to the container (Another Embodiment 8).
  • FIG. 30 is a cross section showing the state the siphon tube set to the container (Embodiment 9).
  • FIG. 31 is a cross section showing the state priming siphon (Embodiment 9).
  • FIG. 32 is a cross section showing siphon state (Embodiment 9).
  • FIG. 33 is a cross section showing the state taking out the liquid (Embodiment 9).
  • FIG. 34 is a cross section showing the state taking out the liquid (Embodiment 9).
  • compositions to generate negative pressure in the siphon pipe There are plenty of compositions to generate negative pressure in the siphon pipe.
  • nine example compositions especially easy to use are given, each has difference from others on overall composition of siphon tube and the portion where the negative pressure is generated.
  • FIG. 1 is an illustration showing the state the siphon tube of embodiment 1 set to the container
  • FIG. 2 is a cross section showing liquid flow path in the state above, where 1 is a cup as a liquid container, 13 is a casing of the siphon tube, doubles as a relay liquid tank and as a pump of this invention. Case 13 is set to cup 1 , by portion 111 of siphon pipe 2 inside the container and wings 110 of casing 13 .
  • 14 is a pouring tube of liquid made of elastic tube.
  • 15 is a frame which keeps pouring tube 14 to the height around the brim of cup 1 and, assists pumping function of casing 13 as explained later.
  • Siphon pipe 2 is composed of portion 111 inside the container and portion 12 outside the container connected airtight, so easy to be cleaned.
  • Casing 13 is a elastic tank composed of body portion 114 and lid portion 112 connected.
  • Siphon pipe 2 is set piercing lid portion 112 , by insertion or like.
  • Pouring tube 14 is connected airtight to the flow out port, lower part of body portion 114 of the casing.
  • Lid portion 112 of the casing has also small hole 113 open to the atmosphere. Small hole 113 is not required in case the connection between lid 112 and siphon pipe 2 have adequate open to the atmosphere.
  • casing 13 should be designed to be able to store siphon pipe 2 , pouring tube 14 , frame 15 detached, when not in use.
  • Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 2 which shows the initial state
  • liquid 0 exists only in cup 1 .
  • Liquid surface 102 inside siphon pipe 2 is almost at the same height as liquid surface 101 in cup 1 .
  • FIG. 3(A) 115 is side plates both sides of the frame 15 , covering casing body 114 and pouring tube 14 from left and right. Side plates 115 have guide portion 116 , 117 and hook portion 119 , soft pads 118 which squash the pouring tube 14 when operating. By casing body 114 and spring 120 , 121 , side plates 115 are kept parallel with distance almost equals to the width of casing body 114 .
  • casing body 114 is squashed first. Further pressure narrows the distance between side plates 115 , conducted by the guide portion 116 , 117 . Eventually pouring tube 14 is clogged squashed by pads 118 , and hook portion 119 hooked, comes to the state of FIG. 3(B) .
  • Casing body 114 is squashed by the pressure, and the gas inside is ejected through the pouring tube 14 which is not clogged yet, and through small hole 113 on casing lid 112 .
  • the state of FIG. 3(B) comes with the pouring tube 14 clogged. No major lift on the liquid surfaces through the operation above, cross section of the flow path is the same as FIG. 2 , except for vibration.
  • casing body 114 increases its capacity with pouring tube 14 clogged, until it comes to the state of FIG. 3(C) .
  • Liquid 0 in cup 1 is sucked by negative pressure generated in casing 13 and siphon pipe 2 .
  • Liquid 0 fills the siphon pipe, and siphon state is established.
  • the flow path now has its cross section shown in FIG. 4 .
  • Liquid surface 102 which has been in siphon pipe 111 , proceed into casing body 114 and comes to liquid surface 103 transitionally.
  • Gas inflow through small hole 113 has resistance with the speed casing body 114 recovering, so the sucking operation of liquid 0 is superior.
  • casing 114 finish recovering liquid surface 103 get closer to the same height as liquid surface 101 in cup 1 , with through flow of gas via small hole 113 .
  • pouring tube 14 is released from clogging and the flow path comes to have its cross section shown in FIG. 5 .
  • Both liquid surfaces, 103 in casing body 114 and 104 in pouring tube 14 come stable at the same height as liquid surface 101 in cup 1 .
  • FIG. 6 is a cross section, pouring out liquid 0 , inclining together with cup 1 after siphon state comes stable.
  • Pouring out flow 105 occurs when inclined so as to the end of pouring tube 14 comes to the lower height than liquid surface 101 in cup 1 .
  • Liquid surface 103 in casing body 114 goes down slightly in accordance with the pouring out speed.
  • User can prime siphon with one-handed operation, pressuring and releasing frame side plates 115 , after setting the siphon tube on the cup.
  • the better usability can be achieved, with arrangement on the operations to work together: the siphon tube mounting and fixing operation on the cup, and the frame operation.
  • casing 13 is also structured dividable, so very easy to be cleaned.
  • casing body 114 or pouring tube 14 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • Embodiment 1 is an example of composition which generate negative pressure in the whole relay liquid tank, which is an open type, and in the siphon pipe.
  • press and release casing 13 itself
  • other compositions are possible using the same principle, for example a composition using suction by an external pump.
  • FIG. 7 is a cross section showing liquid flow path in the state the siphon tube of embodiment 2 set to the container.
  • Siphon pipe 2 is composed of three parts: portion 210 inside the container and portion 22 upper part outside the container, portion 211 lower part outside the container. All flow path parts are connected airtight, from siphon pipe 2 through flexible pump liquid tank 23 , to pouring tube 24 .
  • Valve 212 with lower specific gravity than the liquid is prepared on flow out port downstream end of pump liquid tank 23 . With the behavior of valve 212 , merely operating pump liquid tank 23 squashed and then released, siphon state is primed.
  • the said figure shows liquid surface of a stable condition after priming siphon, so liquid surface 203 inside pouring tube 24 is almost at the same height as liquid surface 201 in cup 1 .
  • Each flow path connection can be detached for storing, cleaning, and for maintenance, when not in use.
  • Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • Pump liquid tank 23 is a closed type relay liquid tank, without gas in its upper part.
  • Valve 212 can be placed downstream than illustrated. Select the suitable position between pump liquid tank 23 and the end of pouring tube 24 , and suitable kind of valve.
  • pump liquid tank 23 and pouring tube 24 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • Embodiment 2 is an example of composition which generate negative pressure in whole relay liquid tank, which is a closed type, and in the siphon pipe.
  • FIG. 8 is a cross section showing liquid flow path in the state the siphon tube of embodiment 3 set to the container, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, connected airtight with portion 32 of the siphon pipe outside the container, to compose the siphon pipe.
  • 33 is a relay liquid tank, connected airtight with portion 32 of the siphon pipe above, at a height around the bottom of cup 1 , and with pouring tube 34 at its upper part.
  • Pouring tube 34 has pouring end opening at a height around the brim of cup 1 .
  • a series of connected parts from siphon pipe 2 to pouring tube 34 is mounted on cup 1 with holding parts not shown in the figure.
  • Relay liquid tank 33 has parts below, which compose a pump function.
  • Piston 310 together with slide plates 311 , slides inside the relay liquid tank up/down.
  • Spring 324 pushes piston 310 upward in the liquid tank.
  • Piston 310 also has an opening in its side, corresponding to the connection with pouring tube 34 at upper part.
  • Motor drive 312 makes leading shaft 314 spin, with switch 313 pushed down. The power supply and the motor, the control circuits are sealed.
  • Bearing 315 holds leading shaft 314 and spring 324 at the lower part of the liquid tank, provided with holes not to impede liquid flow.
  • 316 is a cap of the relay liquid tank, keeps the parts in relay liquid tank 33 above held, with elastic portion corresponding to switch 313 .
  • the flow path parts above can be stored detached when not in use, and the parts in relay liquid tank 33 can be taken out and cleaned, maintained easily, taking off cap 313 .
  • Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 8 which shows the initial state
  • liquid 0 exists only in cup 1 .
  • Liquid surface 302 inside siphon pipe 2 is almost at the same height as liquid surface 301 in cup 1 .
  • FIG. 9(A) shows the initial state when piston 310 and slide plates 311 are at the upper part of the liquid tank, seen from the upper side.
  • Piston 310 has notches 324 , and with rails not shown on the inside wall of relay liquid tank 33 , slides up/down without spin.
  • Slide plates 311 consists of two plates mounted on the surface of piston 310 with slide rail not shown, has guide portion 321 to follow the corkscrew runner of leading shaft 314 , and slits 320 drawn with solid lines.
  • Slide plates 311 has two positions, slid by open-pins 317 and close-pins 318 .
  • FIG. 9(A) which shows the initial state
  • open-pins 317 are inserted in open-holes 322 and two slide plates are staying closed to each other.
  • guide portion 321 fits on leading shaft 314 , and slits 320 are aligned open with slits 319 on the piston.
  • FIG. 9(B) which shows the state at the lower part of the liquid tank
  • close-pins 318 are inserted in close-holes 323 and the slide plates comes apart.
  • guide portion 321 move outward releasing leading shaft 314
  • slits 320 are aligned close with slits 319 on the piston.
  • FIG. 10 shows the state the piston and the slide plates come to the lowest part of the liquid tank.
  • close-pins 318 drive the slide plates.
  • piston 310 and slide plates 311 comes down with slits 319 , 320 aligned open. So gas flow is almost free and causes no major lift on the liquid surface.
  • Liquid surface 301 , 302 are at the same height as the initial state, except for vibration.
  • piston 310 and slide plates 311 release leading shaft 314 and driven upward by spring 324 to the upper part of the liquid tank, with slits 319 , 320 aligned close.
  • FIG. 11 shows the state the liquid surfaces come stable, with piston 310 and slide plates 311 come back to the initial position.
  • Liquid surface 303 in relay liquid tank 33 is almost at the same height as liquid surface 301 in cup 1 .
  • FIG. 12 shows the cross section, pouring out liquid 0 , inclining together with cup 1 after siphon state comes stable.
  • Pouring out flow 305 occurs when inclined so as to the pouring end comes to lower height than liquid surface 301 in cup 1 .
  • Liquid surface 304 in the relay liquid tank is almost at the height of the pouring end.
  • Liquid surface 304 shown in FIG. 12 is in the case of sealed one. Liquid surface 304 comes almost to the height of the liquid surface in cup 1 , in the case there are open to atmosphere.
  • Embodiment 3 is an example of composition which adds a pump function to an open type or a closed type relay liquid tank, and generate negative pressure in part of the relay liquid tank and the siphon pipe.
  • FIG. 13 is a cross section showing liquid flow path in the state the siphon tube of embodiment 4 set to the container, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, connected airtight with portion 42 of the siphon pipe outside the container, to compose the siphon pipe.
  • 43 is a relay liquid tank, connected airtight with portion 42 of the siphon pipe above, at a height around the bottom of cup 1 , and with pouring tube 44 at its upper part.
  • Pouring tube 44 has its pouring end at a height around the brim of cup 1 .
  • a series of connected parts from siphon pipe 2 to pouring tube 44 is mounted on cup 1 with holding parts not shown in the figure.
  • Relay liquid tank 43 has parts below, which compose a pump mechanism.
  • Piston 410 is a ring magnet, which is connected with open-close plate 411 via leaf spring 412 , slides inside relay liquid tank 43 up/down.
  • Spring 414 pushes piston 410 upward, with its lower end supported by ribs 416 on the inner wall of the liquid tank.
  • 413 is a magnet which slides outside relay liquid tank 43 up/down.
  • 415 is a cap part of relay liquid tank 43 , which seals the liquid tank and prevent magnet 413 from going away.
  • the flow path parts above can be stored detached when not in use, and magnet 413 and the parts in the relay liquid tank can be taken out and cleaned, maintained easily, taking off cap 415 .
  • Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 13 which shows the initial state
  • liquid 0 exists only in cup 1 .
  • Liquid surface 402 inside siphon pipe 2 is almost at the same height as liquid surface 401 in cup 1 .
  • Piston 410 is at the upper part of the liquid tank pressed by spring 414 , and repelling magnet 413 is at higher position than piston 410 .
  • Open-close plate 411 is a little bit aloof from piston 410 , pressured by leaf spring 412 .
  • Open-close plate 411 has openings 417 , and projecting part 418 downward, which goes into the central opening of piston 410 .
  • the central opening of piston 410 and openings 417 on open-close plate 411 compose a flow path of liquid or gas, with a little distance between piston 410 and open-close plate 411 made by leaf spring 412 .
  • the flow path is almost closed with the central opening of piston 410 closed by projecting part 418 on open-close plate 411 .
  • FIG. 15 is the cross section of the transitional state above.
  • the gas flow path is almost closed with piston 410 sliding upward as explained above, so negative pressure is generated in the part lower than piston 410 and in the siphon pipe 42 and 2 , suck liquid 0 .
  • the liquid surface in the siphon pipe transitionally passes through the position shown as 403 , and establish siphon state. Operation after the siphon priming is almost the same as embodiment 1,3, so omitted explanation here.
  • Ribs 416 on the inner wall of upper liquid tank work as a stopper of the piston, so the magnet is able to go back overcoming the repelling force. Ribs 416 on the inner wall of upper liquid tank are detachable, so do no evil on easiness of maintenance.
  • Relay liquid tank 43 of this embodiment is a closed type, filled up with liquid when operating. If relay liquid tank 43 and pouring tube 44 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • Embodiment 4 is an example of composition which adds a pump function to a closed type relay liquid tank, and generate negative pressure in part of the relay liquid tank and the siphon pipe.
  • FIG. 16 is a cross section showing liquid flow path in the state siphon tube of embodiment 5 priming siphon, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, connected airtight with portion 52 of the siphon pipe outside the container, to compose the siphon pipe.
  • 53 is a relay liquid tank with lid portion 510 connected. Portion 52 of the siphon pipe outside the container is set piercing lid portion 510 , by insertion or like.
  • Pouring tube 54 is connected airtight to the flow out port, lower part of relay liquid tank 53 , and has its pouring end opening at a height around the brim of cup 1 .
  • Lid portion 510 has also small hole 511 opening to the atmosphere. Small hole 511 is not required in case the connection of lid portion 510 with the liquid tank and the connection between lid 510 and siphon pipe 52 have adequate open to the atmosphere.
  • a series of connected parts from siphon pipe 2 to pouring tube 54 is mounted on cup 1 with holding parts not shown in the figure.
  • 512 is a suction pump made with elastic material, which can be inserted almost airtight in the pouring end.
  • relay liquid tank 53 should be designed to be able to store the parts above detached, when not in use. This composition has less parts used and can be cleaned, maintained very easily. Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • suction pump 512 inserting in the pouring end.
  • siphon pipe 2 in cup 1 ejects gas from its opening, with the squashing speed faster than the gas ejection through small hole 511 .
  • User should preferably wait for a while in this case, with the suction capacity margin of pump 512 not sufficient.
  • gas ejected through small hole 511 the liquid surface inside siphon pipe 2 comes back to almost the same height as the liquid surface in cup 1 . This inconvenience can be solved by inserting pump 512 after squashing it.
  • Liquid surfaces 502 , 503 in FIG. 16 are of the transitional state the liquid surfaces proceeding, after siphon established.
  • Liquid surface 502 in relay liquid tank rises in accordance with the speed of gas ejection through small hole 511 , after coming upper than the flow out port to pouring tube 54 .
  • Liquid surface 503 in pouring tube 54 rises in accordance with the suction speed of pump 512 .
  • siphon can be primed operating pump 512 after insert it in the pouring end. More primitive way, sucking the pouring end with mouth, is widely done but this composition is preferable in safety, hygiene.
  • Relay liquid tank 53 of this embodiment in FIG. 16 is an open type liquid tank with gas in its upper part when operating.
  • the liquid surface in the relay liquid tank, when pouring out the liquid, goes slightly lower than the height of the liquid surface in cup 1 . If relay liquid tank 53 or pouring tube 54 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • FIG. 17 is a cross section showing liquid flow path in the state priming siphon, with another composition but with the same principle above.
  • Relay liquid tank 533 is the difference from above, connected airtight with siphon pipe 522 at its lower part.
  • the tank has lid portion 513 which has connection with pouring tube 544 at its upper part, both sides connected airtight, so this is a closed type tank filled up with liquid when operating.
  • siphon priming is operated, with pump 512 inserted after squash, or with pump 512 which has big suction capacity allowing the gas ejection in cup 1 .
  • Liquid surface 504 in FIG. 17 is of the transitional state the liquid surface proceeding, after siphon established. With structure the liquid surface proceeding can be monitored, user can easily prevent liquid from intruding into the pump, caused by over suction. The rising speed of the liquid surface is slower than in FIG. 16 , where liquid rise up through narrow pouring tube. Suction can be stopped drawing pump 512 out of the pouring end.
  • Embodiment 5 is examples of composition which generate negative pressure in the whole relay liquid tank and in the siphon pipe, with suction from pouring tube.
  • compositions are possible using the same principle, for example a composition adopting an electric pump.
  • siphon tubes using the same principle, for example using an axial-flow pump with adequate size and performance added to the pouring tube.
  • FIG. 18 is across section showing liquid flow path in the state the siphon tube of embodiment 6 set to the container, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, connected airtight with portion 62 of the siphon pipe outside the container, to compose the siphon pipe.
  • the lower part of of portion 62 of the siphon pipe outside the container is made with elastic material.
  • 63 is a relay liquid tank which has cavity for the elastic part of portion 62 of the siphon pipe above at its lower part, a elastic portion to operate a switch explained later, bearings explained later on its inner wall.
  • Pouring tube 64 is connected airtight with the flow out port, lower part of relay liquid tank 63 , and has its pouring end opening at the height around the brim of cup 1 .
  • a series of connected parts from siphon pipe 2 to pouring tube 64 is mounted on cup 1 with holding parts not shown in the figure.
  • Relay liquid tank 63 has parts below, which compose a pump mechanism.
  • FIG. 19 is also referred to hereunder, which is a front-view cross section of the liquid tank.
  • Wheel 610 has several rollers 611 on its circumference, and works as a rotor of a tube peristaltic pump. Wheel 610 rotates with a beveled gear 618 , held on oval bearings 612 on the wall inside the relay liquid tank together with rotor shaft 619 .
  • Rotor shaft 619 can slide along the oval shape of bearing 612 , and in its initial state pressed to the left side in FIG. 18 by the recovery force of the siphon pipe 62 .
  • Motor drive 613 makes a drive shaft 615 spin with switch 614 pushed down.
  • the power supply and the motor, the control circuits are sealed, and switch 614 can be operated from outside through the elastic portion of the relay liquid tank above, on its lowest part.
  • a battery is preferably adopted for the power supply, which is rechargeable with induction.
  • Drive shaft 615 is held its another end on a bearing 617 built into the relay liquid tank, and makes a beveled gear 616 spin to drive beveled gear 618 and wheel 610 above.
  • relay liquid tank 63 should be designed to be able to store the flow path parts above detached. And for easy maintenance, the parts shown in FIG. 19 should preferably composed as a module which can be detached from the relay liquid tank. Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 18 which shows the initial state, liquid 0 exists only in cup 1 .
  • Liquid surface 602 inside siphon pipe 2 is almost at the same height as liquid surface 601 in cup 1 .
  • FIG. 20 shows a cross section of liquid flow path in a transitional state priming siphon.
  • siphon tube set on the cup With siphon tube set on the cup, a single touch of the switch can prime siphon.
  • Relay liquid tank 63 is an open type with gas in its upper part when operating. Also, a lid with adequate opening to the atmosphere can be added to the tank. Sealing the upper part of the liquid tank may cause unstable pouring flow, because the liquid surface in the liquid tank doesn't rise.
  • relay liquid tank 63 or pouring tube 64 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • Embodiment 6 is an example of composition which adds a pump function to the siphon pipe. Negative pressure is generated only in the siphon pipe.
  • the relay liquid tank can be a closed type.
  • composition is possible using a manual driven tube peristaltic pump.
  • compositions are possible using the same principle, for example a composition adopting an axial-flow pump with adequate size and performance for alternative.
  • FIG. 21 is a cross section showing liquid flow path in the state the siphon tube of embodiment 7 set on the container, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, connected airtight with a portion 72 of the siphon pipe outside the container, to compose the siphon pipe.
  • 73 is a relay liquid tank which has plane parallel side walls inside not shown in the figure, and has bottom which has an arc shape partially inside for the horizontal direction in the figure, also has rib 714 on inside wall near cup 1 between the side walls above, which is pierced airtight by the siphon pipe 72 , and slide bearing 712 on the side walls above, which holds priming plate 710 explained later.
  • Pouring tube 74 is connected airtight with the flow out port, lower part of relay liquid tank 73 , and has its pouring end opening at the height around the brim of cup 1 .
  • Relay liquid tank 73 has parts below, which compose a pump function.
  • FIG. 22 is also referred to hereunder, which is a front-view cross section of the liquid tank.
  • Priming plate 710 has an shape exactly fits with the shape inside of relay liquid tank 73 lower portion than rib 714 , and held on slide bearing 712 with its projecting parts 711 on both sides.
  • Spring 713 press priming plate 710 to the inclination shown in the figure, and also press projecting parts 711 to the left-upper end in the figure of slide bearings 712 . With this position of projecting parts 711 , the lower edge of priming plate 710 has some distance from the bottom inside relay liquid tank 73 , and also the cup side surface of priming plate 710 has some distance from rib 714 .
  • each parts above should preferably designed to be able to detached and cleaned, maintained easily. And for better portability, relay liquid tank 73 should be designed to be able to store the parts above detached. Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 21 which shows the initial state, liquid 0 exists only in cup 1 .
  • Liquid surface 702 inside siphon pipe 2 is almost at the same height as liquid surface 701 in cup 1 .
  • FIGS. 23 , 24 show cross section of liquid flow path in transitional states priming siphon.
  • priming plate 710 To prime siphon with the siphon tube set on the cup, user pushes the tongue part top of priming plate 710 to the direction toward the cup. Projecting parts slide to the right-lower end of slide bearings 712 , causing the lower edge of priming plate 710 touches the bottom inside relay liquid tank 72 , also causing the cup side surface of priming plate 710 pressed to rib 714 . An almost sealed space appears, with rib 714 , inner wall of relay liquid tank 73 , priming plate 710 , where the lower end of the siphon pipe 72 is opening.
  • FIG. 23 is a cross section showing the state priming plate 710 pressed about half-way. With almost sealed space above increasing its capacity, negative pressure is generated in the sealed space itself and in the siphon pipe 2 , 72 , and liquid 0 is sucked out of cup 1 . The liquid surface in siphon pipe 72 comes down establishing siphon, and transitionally passes through the position shown as 703 , and proceed to the sealed space above.
  • FIG. 24 is a cross section showing the state priming plate 710 pressed to the end.
  • the lower edge of priming plate 710 now has some distance again from the bottom inside relay liquid tank 73 , coming out of the arc shaped portion.
  • liquid surface 704 in relay liquid tank 73 and liquid surface 705 in pouring tube 74 rise up to their stable state.
  • Relay liquid tank 73 is an open type with gas in its upper part when operating. Also, a lid with adequate opening to the atmosphere can be added to the tank. Sealing the upper part of the liquid tank may cause unstable pouring flow, because the liquid surface in the liquid tank doesn't rise.
  • relay liquid tank 73 or pouring tube 74 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • Embodiment 7 is an example of composition which adds a pump function to an open type relay liquid tank, and generate negative pressure in part of the relay liquid tank and the siphon pipe.
  • FIG. 25 is a cross section showing liquid flow path in the state the siphon tube of embodiment 8 just before priming siphon, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, connected airtight with portion 82 of the siphon pipe outside the container, to compose the siphon pipe which has a structure explained later at the lower end.
  • 83 is a relay liquid tank.
  • Pouring tube 84 is connected airtight with the flow out port, lower part of relay liquid tank 83 , and has its pouring end opening at the height around the brim of cup 1 .
  • a series of connected parts from siphon pipe 2 to pouring tube 84 is mounted on cup 1 with holding parts not shown in the figure.
  • FIG. 26 is also referred to hereunder, which is a front-view cross section of relay liquid tank 83 .
  • Siphon pipe 82 is a suction pump made with elastic material, set to be able to operated above relay liquid tank 83 , and has its suction end 810 connected with the upper part of the lower end opening of siphon pipe 82 , opposite to each other.
  • Siphon pipe 82 has elastic membrane valve 812 at its lower end. As shown in front-view FIG. 26 , the lower end of siphon pipe 82 and suction end 810 of the pump are flat openings of the same width, keeping their flow path cross section and stabilizing the operation of membrane valve 812 with narrow opening of siphon pipe 82 to relay liquid tank 83 .
  • Membrane valve 812 not shown in FIG. 26 for visibility, is set to all the width of flat portion, lower part of the opening of siphon pipe 82 .
  • each parts above should preferably designed to be able to detached and cleaned, maintained easily. And for better portability, relay liquid tank 83 should be designed to be able to store the parts above detached. Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 25 which shows the state the pump 811 compressed, liquid 0 exists only in cup 1 .
  • Liquid surface 802 inside siphon pipe 2 has no major lift with the pump compression, because gas is ejected through the opening on the upper relay liquid tank and the pouring end with membrane valve 812 in open state. It stays almost at the same height as liquid surface 801 in cup 1 , except for vibration.
  • FIGS. 27 , 28 show cross section of liquid path in transitional states priming siphon.
  • FIG. 27 is a cross section showing the state pump 811 on the way of recover. Negative pressure is generated in siphon pipe 2 , 82 with negative pressure generated by pump 811 , causing membrane valve 812 comes to close state clinging to suction end 810 of the pump, and liquid 0 is sucked out of cup 1 .
  • the liquid surface in siphon pipe 82 comes down establishing siphon, and transitionally passes through the position shown as 803 , and proceed to the lower end of siphon pipe 82 and suction end 810 of the pump.
  • FIG. 28 is a cross section showing the state pump 811 finished its recovery. With no negative pressure, membrane valve 812 comes to open state when liquid 0 comes down to the lower end of siphon pipe 82 . In relay liquid tank 83 and pouring tube 84 , liquid surfaces 804 and 805 rise up to their stable state. There are some case surplus liquid 0 intrude into pump 811 .
  • siphon tube set on the cup user can prime siphon by simply operating pump 811 .
  • the better usability can be achieved, with arrangements on the operation mounting and fixing the siphon tube onto the cup and the pump operation work together.
  • Relay liquid tank 83 is an open type with gas in its upper part. Also, a lid with adequate opening to the atmosphere can be added to the tank. Sealing the upper part of the liquid tank may cause unstable pouring flow, because the liquid surface in the liquid tank doesn't rise.
  • relay liquid tank 83 or pouring tube 84 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • FIG. 29 is a cross section showing liquid flow path in the state of initial set up, with another composition but with the same principle above, where part 822 of a siphon pipe outside the container is connected with suction end 813 , at its upper part than lower end, around the top part in the figure.
  • Membrane valve 815 opens/closes only siphon pipe 822 at the lower end of siphon pipe 822 .
  • Membrane valve 815 may be positioned upper than in the figure. Suitable position should be selected between the lower end of siphon pipe 822 and suction end 813 , and a suitable kind of valve should be selected.
  • adding a one-way valve at upstream of the connection between suction end 813 and siphon pipe 822 can work like a siphon pump which can operate with several operations of pump 814 . No need to incline cup 1 , and possible to adopt small pump 814 . Still in this case the portion where negative pressure is generated, and the principle of priming siphon is the same as above.
  • Embodiment 8 is examples of composition which generate negative pressure in the siphon pipe with an external pump.
  • the relay liquid tank can be a closed type.
  • FIG. 30 is a cross section showing liquid flow path in the state the siphon tube of embodiment 9 set to the container, where 1 is a cup containing liquid 0 , 2 is a portion of a siphon pipe inside the container, 910 is a pump made with elastic material connected airtight between siphon pipe 2 and a portion 92 of the siphon pipe lower outside the container, operated pushing tongue 911 to compress it. Both portion of the siphon pipe 2 , 92 and pump 910 composes the siphon pipe.
  • Membrane valve 912 is provided to open/close siphon pipe 92 , at the opening lower end of siphon pipe 92 .
  • 93 is a relay liquid tank.
  • Pouring tube 94 is connected airtight with the flow out port, lower part of relay liquid tank 93 , and has its pouring end opening at the height around the brim of cup 1 .
  • relay liquid tank 93 should be designed to be able to store the parts above detached. Shapes and structures of each parts illustrated are for explanation. In order to obtain better utility and manufacturing efficiency, suitable shapes and assembly mechanism should be chosen.
  • FIG. 31 shows a cross section of liquid flow path in a transitional state priming siphon.
  • liquid 0 exists only in cup 1 .
  • Liquid surface 902 inside siphon pipe 2 has no major lift with the pump compression, because gas is ejected through the opening on the upper relay liquid tank and the pouring end with the membrane valve 912 in open state. It stays almost at the same height as liquid surface 901 in cup 1 , except for vibration.
  • FIG. 31 is a cross section showing a transitional state pump 910 recovering after user release the compression on pump 910 .
  • Negative pressure is generated in siphon pipe 2 , 92 with negative pressure generated by pump 910 , causing membrane valve 912 comes to close state, and liquid 0 is sucked out of cup 1 .
  • Trough siphon pipe 2 liquid 0 enter pump 910 and gathered there in the pump, forming a liquid surface like 903 , for example.
  • There occurs some replacement between liquid in the pump and gas in siphon pipe 92 in case the inner diameter of siphon pipe 92 is large for some extent, forming liquid surfaces like 904 , 905 , for example.
  • membrane valve 912 comes to open state with no negative pressure. With relation to the volume of liquid 0 gathered in pump 910 at this time, there occurs a down flow of liquid 0 toward the lower end of siphon pipe 92 , in case the potential energy of liquid in the flow path outside cup 1 is superior. If the inner diameter of siphon pipe 92 is not too large, siphon state is established with no gas intrusion against the down flow of liquid. There are cases in which the gas in pump 910 , siphon pipe 2 , 92 all ejected to relay liquid tank 93 or pouring tube 94 , in relation to the conditions on the shape of the pump, etc.
  • FIG. 32 is across section showing siphon state came stable after priming, an example of pressure siphon state where some gas remaining in upper flow path.
  • Liquid surfaces, 906 in relay liquid tank 93 and 907 in pouring tube 94 both are at the same height as liquid surface 901 in cup 1 .
  • the gas remaining in the flow path forms liquid surfaces, 908 in siphon pipe 2 and 909 in pump 910 . In case all gas ejected like above, it is complete siphon state and liquid surfaces 908 , 909 are not formed.
  • FIG. 33 and FIG. 34 are cross sections, pouring out liquid 0 , inclining together with cup 1 after siphon state comes stable.
  • FIG. 33 is a case with a little incline of cup 1 .
  • Drip 9078 of liquid occurs when inclined so as to the pouring end comes almost to the height of liquid surface 901 in cup 1 .
  • Liquid surface 9066 in relay liquid tank 93 is at the same height as or comes slightly lower than liquid surface 901 .
  • a supply route of liquid 0 is formed in the siphon pipe with remaining gas in the upper part of siphon pipe 2 and pump 910 , forming a liquid surface like 9099 , for example.
  • FIG. 34 is a case with stronger incline of cup 1 .
  • Pouring out flow 9079 occurs when inclined so as to the pouring end comes to the lower height than liquid surface 901 in cup 1 .
  • Liquid surface 9067 in relay liquid tank 93 comes to in-between height in relation to the condition of the flow path resistance, lower than liquid surface 901 in cup 1 , higher than the pouring end.
  • the flow of liquid 0 push the gas downstream, forming a liquid surface like 9098 , for example.
  • the gas is ejected to relay liquid tank 93 , pressed by the flow.
  • Pump 910 may be positioned lower than in the figure. When pump 910 is at the height lower than liquid surface 901 in cup 1 , chance of complete siphon rises with ability to establish siphon before finishing recovery of pump 910 .
  • Membrane valve 912 may be positioned upper than in the figure. Suitable position should be selected between the lower end of siphon pipe 92 and pump 910 , and suitable kind of valve should be selected.
  • adding a one-way valve at upstream of pump 910 can work like a siphon pump which can prime siphon with several operations of pump 910 .
  • Smaller pump 910 can be adopted, and also possible to position the pump at the top of the siphon pipe.
  • Relay liquid tank 93 is an open type with gas in its upper part. Also, a lid with adequate opening to the atmosphere can be added to the tank. Sealing the upper part of the liquid tank may cause unstable pouring flow, because the liquid surface in the liquid tank doesn't rise.
  • relay liquid tank 93 or pouring tube 94 are fabricated so that the liquid surface inside could be seen from outside, it would be convenient to know approximate volume of remaining liquid when placed flat.
  • Embodiment 9, together with embodiment 6, is an example of composition which adds a pump function to the siphon pipe, although does not expect all the step of priming siphon from the pump function, upon conditions. Negative pressure is generated only in the siphon pipe.
  • the relay liquid tank can be a closed type.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Table Devices Or Equipment (AREA)
US14/439,911 2012-11-17 2013-10-17 Siphon tube Abandoned US20150316076A1 (en)

Applications Claiming Priority (7)

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JP2012252782 2012-11-17
JP2012-252782 2012-11-17
JP2013028486 2013-02-16
JP2013-028486 2013-02-16
JP2013044041A JP5302477B1 (ja) 2012-11-17 2013-03-06 サイフォン管
JP2013-044041 2013-03-06
PCT/JP2013/078151 WO2014077080A1 (ja) 2012-11-17 2013-10-17 サイフォン管

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US (1) US20150316076A1 (ja)
EP (1) EP2921717A4 (ja)
JP (1) JP5302477B1 (ja)
CN (1) CN104736855B (ja)
TW (1) TWI438343B (ja)
WO (1) WO2014077080A1 (ja)

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JP6564595B2 (ja) * 2015-03-27 2019-08-21 川崎重工業株式会社 薬液ピペット装置、薬液移送システムおよび薬液移送方法
CN104757852A (zh) * 2015-04-27 2015-07-08 崔誉龄 一种引流器
JP6421288B1 (ja) * 2018-05-13 2018-11-07 吉田　貴 サイフォン管
CN110466784B (zh) * 2019-08-18 2021-07-02 南通华夏飞机工程技术股份有限公司 一种飞机油箱防腐蚀结构
DE102019218518A1 (de) * 2019-11-29 2021-06-02 Robert Bosch Gmbh Bewässerungssystem
CN112106723B (zh) * 2020-09-18 2022-04-12 淮北平坤锂电池科技有限公司 一种瀑布过滤器的虹吸辅助机构
CN114321463B (zh) * 2022-01-07 2022-09-13 安徽农业大学 一种基于虹吸原理的调压装置

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EP2921717A4 (en) 2016-08-03
JP2014177866A (ja) 2014-09-25
CN104736855A (zh) 2015-06-24
WO2014077080A1 (ja) 2014-05-22
TWI438343B (zh) 2014-05-21
CN104736855B (zh) 2016-08-17
JP5302477B1 (ja) 2013-10-02
TW201413118A (zh) 2014-04-01
EP2921717A1 (en) 2015-09-23

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