SK5732001A3 - Safety valve for gas supply conduit - Google Patents
Safety valve for gas supply conduit Download PDFInfo
- Publication number
- SK5732001A3 SK5732001A3 SK573-2001A SK5732001A SK5732001A3 SK 5732001 A3 SK5732001 A3 SK 5732001A3 SK 5732001 A SK5732001 A SK 5732001A SK 5732001 A3 SK5732001 A3 SK 5732001A3
- Authority
- SK
- Slovakia
- Prior art keywords
- valve
- gas supply
- safety valve
- tappet
- adjusting mechanism
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/086—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet the magnet being movable and actuating a second magnet connected to the closing element
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/46—Mechanical actuating means for remote operation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
- Magnetically Actuated Valves (AREA)
- Safety Valves (AREA)
- Pipeline Systems (AREA)
Abstract
Description
Oblasť technikyTechnical field
Vynález sa týka poistného ventilu pre plynové zásobovacie potrubie, s puzdrom, ktoré je vložiteľné do plynového zásobovacieho potrubia, má ventilové sedlo, a je v ňom axiálne posuvne uložené zdvihátko ventilu s tanierom ventilu, ovládaným otváracou pružinou proti smeru prúdenia.BACKGROUND OF THE INVENTION The invention relates to a safety valve for a gas supply line having a housing which can be inserted into a gas supply line, having a valve seat, and therein axially displaceably disposed a valve tappet with a valve disk actuated by an opening spring upstream.
Doterajší stav technikyBACKGROUND OF THE INVENTION
Aby sa pri prerušení plynového zásobovacieho potrubia mohlo zamedziť úniku plynu, vsadzujú sa predovšetkým proti prúdu častiam potrubia ohrozeným prerušením poistné ventily, ktoré sú riadené rozdielom tlaku prúdenia plynu pred a za poistným ventilom. Na tento účel je známe (WO 92/01184 A1) do plynového zásobovacieho potrubia utesnene vkladať rúrkovité puzdro, ktoré tvorí ventilové sedlo pre pružinou zaťažený tanier ventilu, ktorý je zdvihátkom ventilu axiálne posuvne uložený v puzdre a otvára sa v protismere k smeru prúdenia. Pretože sa tanier ventilu ovláda otváracou pružinou, ktorej otváracia sila je prispôsobená vopred stanovenému prietoku plynu, uzaviera sa pri prekročení tohto prietoku poistný ventil samočinne, pretože kvôli potom vyššiemu poklesu tlaku rozdielový tlak, pôsobiaci na tanier ventilu, prekračuje silu otváracej pružiny. Takéto poistné ventily, upravené výhodne v oblasti napojenia plynového zásobovacieho potrubia domov na hlavné plynové zásobovacie potrubie, pri prerušení alebo pri poškodení zásobovacieho potrubia na základe z toho vyplývajúceho zväčšeného prietoku plynu zaisťujú poistným ventilom uzavretie plynového zásobovacieho potrubia od hlavného plynového zásobovacieho potrubia. Nevýhodné však je, že sa po uzavretí poistného ventilu tanier ventilu zo strany uloženej po prúde musí ovládať s protitlakom k panujúcemu prevádzkovému tlaku plynu na strane taniera uloženej proti prúdu, aby sa tanier ventilu mohol otvárať otváracou pružinou aIn order to prevent gas leakage in the event of a gas supply line being interrupted, safety valves, which are controlled by the differential pressure of the gas flow upstream and downstream of the relief valve, are preferably installed upstream of the pipeline parts at risk of interruption. For this purpose, it is known (WO 92/01184 A1) to insert a tubular sleeve in a sealed manner into the gas supply pipe, which forms a valve seat for a spring-loaded valve disk which is axially displaceable in the sleeve and opens counterclockwise to the flow direction. Since the valve plate is actuated by an opening spring whose opening force is adapted to a predetermined gas flow, the safety valve closes automatically when this flow rate is exceeded because the differential pressure acting on the valve plate exceeds the opening spring force due to a higher pressure drop. Such safety valves, preferably provided in the area of connecting the gas supply pipe of the home to the main gas supply pipe, in the event of interruption or damage to the supply pipe due to the resulting increased gas flow, ensure the safety valve closes the gas supply pipe from the main gas supply pipe. However, it is disadvantageous that after closing the safety valve, the valve disc from the downstream side must be operated with counter pressure to the prevailing operating pressure of the gas on the upstream side of the valve so that the valve disc can be opened by an opening spring;
31699/T31699 / T
následne sa mohol opäť držať v otváracom postavení, dokiaľ pokles tlaku v oblasti poistného ventilu neprekročí medznú hodnotu, vopred stanovenú silou otváracej pružiny.it could then be held in the opening position again until the pressure drop in the area of the safety valve exceeds a predetermined force of the opening spring.
Podstata vynálezuSUMMARY OF THE INVENTION
Základom vynálezu je teda úloha vytvoriť poistný ventil pre plynové zásobovacie potrubie vyššie uvedeného typu tak, aby sa mohlo zaistiť jednoduché ovládanie ventilu, bez toho aby sa muselo plynové zásobovacie potrubie na strane, uložené po prúde poistného ventilu, ovládať tlakovým plynom.The object of the present invention is therefore to provide a safety valve for a gas supply line of the type mentioned above, so that the valve can be easily operated without having to actuate the gas supply line on the downstream side of the safety valve.
Vynález rieši túto úlohu tým, že je zdvihátko ventilu magneticky prestaviteľné nastavovacím mechanizmom, upraveným zvonku plynového zásobovacieho potrubia.The invention solves this problem in that the valve tappet is magnetically adjustable by means of an adjusting mechanism provided outside the gas supply line.
Upravením nastavovacieho mechanizmu zvonku plynového zásobovacieho potrubia, ktorý magneticky premiestňuje zdvihátko poistného ventilu, sa vytvárajú výhodné predpoklady na ovládanie ventilu, bez toho aby sa muselo uskutočňovať ovládanie taniera ventilu tlakovým plynom v zmysle otvárania. Magnetické prestavovanie zdvihátka ventilu pritom vylučuje riadiace články, ktoré prestupujú plynové zásobovacie potrubie, takže sú kvôli absencii plynotesné vytvorených priechodok dané jednoduché konštrukčné pomery, ktoré výhodne zodpovedajú všetkým bezpečnostným požiadavkám. Magnetické hnacie spojenie medzi zdvihátkom ventilu a nastavovacím mechanizmom, upraveným zvonku plynového zásobovacieho potrubia, môže slúžiť nie len na otváranie poistného ventilu po prerušení potrubia, ale tiež na uzavieranie poistného ventilu, čo podľa okolnosti ušetrí inak vyžadované, rukou ovládateľné uzavieracie ventily pre plynové zásobovacie potrubie.By providing an adjustment mechanism outside the gas supply line that magnetically displaces the safety valve tappet, advantageous prerequisites for actuating the valve are created without having to actuate the valve disk with a pressurized gas in the sense of opening. The magnetic adjustment of the valve tappet eliminates the control elements which penetrate the gas supply pipe, so that, due to the absence of gas-tightly formed bushings, simple design conditions are given which advantageously satisfy all safety requirements. The magnetic drive connection between the valve tappet and the adjusting mechanism provided outside the gas supply line can serve not only to open the safety valve after the pipeline interruption, but also to close the safety valve, which will save otherwise required manually controlled valves for gas supply lines. .
Aby sa magnetickým spojením s jednoduchými prostriedkami docielilo hnacie spojenie medzi nastavovacím mechanizmom a zdvihátkom ventilu, účinné v oboch prestavovacích smeroch zdvihátka ventilu, môže maťIn order to achieve a drive connection between the adjusting mechanism and the valve tappet, effective in both valve tappet adjusting directions, by magnetic coupling with simple means, it may have:
31699/T31699 / T
nastavovací mechanizmus prepólovateľné magnetické pole, spolupôsobiace s jedným permanentným magnetom zdvihátka ventilu, takže sa v jednom ustavení magnetického poľa zdvihátko ventilu priťahuje a v druhom odráža. Ak sa použije v súvislosti s nastavovacím mechanizmom rovnako permanentný magnet, musí sa tento na prepólovanie magnetického poľa príslušne otočiť.a reversible magnetic field adjusting mechanism interacting with one permanent valve tappet magnet so that the valve tappet attracts and reflects in the other magnetic field alignment. If a permanent magnet is also used in connection with the adjustment mechanism, it must be rotated accordingly for reversing the magnetic field.
Nastavovací mechanizmus na magnetické prestavenie zdvihátka ventilu môže byť konštruovaný vždy podľa prípadu použitia veľmi rozdielne, pretože ide iba o to, premiéstniť zdvihátko ventilu v smere alebo proti smeru otváracej pružiny. Mimoriadne jednoduché konštrukčné pomery sú však dané vtedy, ak je puzdro poistného ventilu upravené v napájacej oblasti kolena plynového zásobovacieho potrubia, na ktoré sa nastavovací mechanizmus napája v axiálnom predĺžení zdvihátka ventilu, pretože v tomto prípade nastavovací mechanizmus môže pozostávať z prestavovacej tyče, ktorá je posuvná v smere zdvihátka ventilu, je výhodne upravená vo vodiacej rúrke a nesie na svojom konci privrátenom zdvihátku ventilu permanentný magnet. Na ovládanie poistného ventilu je potrebná teda iba prestavovaciu tyč nastavovacieho mechanizmu s permanentným magnetom z koncovej strany vysunúť proti zdvihátku ventilu, čo tiež umožňuje jednoduché ovládanie rukou.Depending on the application, the adjusting mechanism for the magnetic adjustment of the valve tappet can be designed very differently, since it is merely necessary to move the valve tappet in the direction or against the direction of the opening spring. Extremely simple design conditions are provided, however, if the safety valve housing is provided in the supply area of the gas supply pipe elbows to which the adjusting mechanism is supplied in the axial extension of the valve tappet, since in this case the adjusting mechanism may consist of a adjusting rod which is movable. in the direction of the valve tappet, it is preferably provided in the guide tube and carries a permanent magnet at its end facing the valve tappet. In order to operate the safety valve, it is therefore only necessary to extend the adjusting rod of the permanent magnet adjusting mechanism from the end side against the valve tappet, which also makes it easy to operate by hand.
Prehľad obrázkov na výkresochBRIEF DESCRIPTION OF THE DRAWINGS
Vynález bude bližšie vysvetlený prostredníctvom konkrétnych príkladov uskutočnenia znázornených na výkresoch, na ktorých predstavuje obr. 1 poistný ventil podľa vynálezu pre plynové zásobovacie potrubie v schematickom axiálnom reze v otvorenom postavení, obr. 2 tento poistný ventil v uzavretom postavení a obr. 3 poistný ventil podľa vynálezu v prípade zabudovaniaBRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with reference to the drawings, in which: FIG. 1 shows a safety valve according to the invention for a gas supply line in a schematic axial section in an open position, FIG. 2 shows the safety valve in the closed position, and FIG. 3 shows a safety valve according to the invention in case of installation
31699/T31699 / T
Príklady uskutočnenia vynálezuDETAILED DESCRIPTION OF THE INVENTION
Podľa obr. 1 a 2 má znázornený poistný ventil Srúrkovité puzdro 1, ktoré je plynotesné vložené do plynového zásobovacieho potrubia 2 a tvorí ventilové sedlo 3 pre tanier 4 ventilu, ktorý je zdvihátkom 5 ventilu axiálne posuvne uložený v puzdre 1 a pomocou otváracej pružiny 6 sa ovláda proti smeru y prúdenia. Ako je vidieť na obr. 1 a 2, je puzdro 1_ výhodne vložené do čelného napájacieho konca 7 časťou potrubia, napojené na koleno 8, ktoré je vytvorené ako tvarovka v tvare „T“, ktorej v predĺžení napájacieho konca 7 prebiehajúci nástavec 9 je plynotesné uzavretý prídržným napojením 10 pre nastavovací mechanizmus 11.. Zdvihátko 5 ventilu, vyčnievajúce do oblasti nástavca 9, nesie na svojom konci permanentný magnet 12, ktorý spolupôsobí s permanentným magnetom 13 na prestavovacej tyči 14 nastavovacieho mechanizmu 11..According to FIG. 1 and 2, a safety valve 1 is shown, which is gas-tightly inserted into the gas supply pipe 2 and forms a valve seat 3 for a valve plate 4 which is axially displaceable in the housing 1 by a valve tappet 5 and is actuated counterclockwise by an opening spring 6 y flow. As can be seen in FIG. 1 and 2, the housing 7 is preferably inserted into the front end 7 of the pipe connected to the elbow 8, which is formed as a "T" shaped piece, the extension 9 of which extends in the end 7 of the supply end. The valve tappet 5 projecting into the region of the extension 9 carries at its end a permanent magnet 12 which cooperates with the permanent magnet 13 on the adjusting rod 14 of the adjusting mechanism 11.
V otváracom postavení poistného ventilu S, znázornenom na obr. 1, drží otváracia pružina 6 tanier 4 ventilu v otváracom postavení, obmedzenom dorazom. Pokles tlaku, nastavovaný v oblasti poistného ventilu S, môže preto pôsobiť na tanier 4 ventilu iba silou, ktorá je menšia ako sila otváracej pružinyIn the opening position of the safety valve S shown in FIG. 1, the opening spring 6 holds the valve disc 4 in the opening position limited by the stop. The pressure drop set in the region of the safety valve S can therefore only act on the valve plate 4 with a force that is less than the opening spring force
6. Sila otváracej pružiny 6 však musí byť obmedzená smerom hore a na najväčší prípustný prietok plynu, aby pri prekročení tohto prietoku plynu napríklad kvôli prerušeniu potrubia po prúde poistného ventilu potom zvýšený tlakový rozdiel na tanier 4 ventilu spôsobil jeho uzavretie proti otváracej pružine6. The force of the opening spring 6, however, must be limited upwards and to the maximum permissible gas flow, so that if this gas flow is exceeded, for example because of a pipe break downstream of the safety valve, the increased pressure difference on the valve plate 4 causes it to close against the opening spring
6. Pretože v uzavieracom postavení podľa obr. 2 môže proti ovládaciemu tlaku plynu pôsobiť iba sila otváracej pružiny 6, zostáva poistný ventil uzavretý, dokiaľ je tanier 4 ventilu doplnkovo ovládaný v zmysle otváracej pružiny 6. Toto doplnkové ovládanie taniera 4 ventilu sa uskutočňuje podľa vynálezu nastavovacím mechanizmom 11., ktorý je magneticky spojený so zdvihátkom 5 ventilu. Pretože majú permanentné magnety 12 a 13 na svojich navzájom privrátených stranách rovnomerné póly, je daná medzi permanentnými magnetmi 12 a 13 odpudzujúca sila, ktorá má pri vysunutí prestavovacej tyče v smere šípky 15 za následok otváranie poistného ventilu S. Ak je pokles tlaku6. In the closing position of FIG. 2, only the force of the opening spring 6 can act against the gas control pressure, the safety valve remains closed as long as the valve plate 4 is additionally controlled in the sense of the opening spring 6. This additional control of the valve plate 4 is effected according to the invention by an adjustment mechanism 11 which is magnetically coupled with valve tappet 5. Since the permanent magnets 12 and 13 have uniform poles on their mutually facing sides, a repulsive force is provided between the permanent magnets 12 and 13 which, when the adjusting rod is extended in the direction of the arrow 15, causes the safety valve S to open.
31699/T31699 / T
v oblasti poistného ventilu S opäť obmedzený na prípustnú oblasť, je tanier 4 ventilu držaný otváracou pružinou 6 v otváracom postavení, ak je prestavovacia tyč 14 ťahaná späť do východiskovej polohy podľa obr. 1.in the region of the safety valve S again limited to the permissible area, the valve plate 4 is held by the opening spring 6 in the opening position when the adjusting rod 14 is pulled back to the starting position according to FIG. First
Pri prepólovaní magnetického poľa nastavovacieho mechanizmu 11 sa môže tanier 4 ventilu uzavierať tiež proti sile otváracej pružiny 6 pri prípustnom poklese tlaku, čo nie je potrebné bližšie vysvetľovať. V tomto prípade je iba potrebné zaistiť, aby bol pól permanentného magnetu 13, privrátený permanentnému magnetu 12, nerovnomerný k činnému pólu permanentného magnetu 12, takže sa oba permanentné magnety 12, 13 priťahujú.When the magnetic field of the adjusting mechanism 11 is reversed, the valve disk 4 can also close against the force of the opening spring 6 at a permissible pressure drop, which need not be explained in more detail. In this case, it is only necessary to ensure that the pole of the permanent magnet 13 facing the permanent magnet 12 is uneven to the active pole of the permanent magnet 12 so that the two permanent magnets 12, 13 are attracted.
Ako je vidieť na obr. 3, je poistný ventil S vstavaný v oblasti navŕtacej armatúry 16 hlavného plynového zásobovacieho potrubia 17, od ktorého odbočuje plynové zásobovacie potrubie 2 k domovej prípojke. Poistný ventil S je pritom upravený vo vertikálnom napájačom konci 7 navrtávacej armatúry 16, takže sa na prídržné napojenie 10 kolena 8 môže nasadiť smerom hore prebiehajúca vodiaca rúrka 18 pre prestavovaciu tyč 14 nastavovacieho mechanizmu 11 Pretože táto vodiaca rúrka 18 ústi v povrchovej šachte 19, môže sa poistný ventil S ovládať od povrchovej šachty 19 nastavovacím mechanizmom 11. a síce podľa voľby činných magnetických pólov v zmysle otvárania alebo uzavierania. Prestavovaciu tyč 14 pritom nie je potrené nutne vymieňať, ak je zaistené reverzné zariadenie permanentného magnetu 13.As can be seen in FIG. 3, the safety valve S is installed in the region of the drill fitting 16 of the main gas supply line 17, from which the gas supply line 2 branches to the house connection. The safety valve S is provided in the vertical feed end 7 of the tapping fitting 16, so that the upwardly extending guide tube 18 for the adjusting rod 14 of the adjusting mechanism 11 can be mounted on the holding connection 10 of the bend 8 The safety valve S can be actuated from the surface shaft 19 by the adjusting mechanism 11, i.e. according to the choice of the active magnetic poles in terms of opening or closing. The adjusting rod 14 does not necessarily need to be replaced if a permanent magnet reversing device 13 is provided.
Nie je potrebné zvlášť zdôrazňovať, že vynález nie je obmedzený na znázornený príklad uskutočnenia, pretože sa pre zdvihátko 5 ventilu môžu použiť rôzne nastavovacie mechanizmy 11. Je iba potrebné zaistiť, aby bolo medzi nastavovacím mechanizmom 11 a zdvihátkom 5 ventilu činné magnetické ovládacie spojenie, aby sa pri ovládaní nastavovacieho mechanizmu 11. mohol poistný ventil S otvárať, prípadne uzavierať. To znamená, že plynové zásobovacie potrubie 2 a koleno 8 nesmie so sebou prinášať magnetické odtienenie. Pri všeobecne inštalovaných plastových potrubiach je táto podmienka vopred splnená.It is not necessary to particularly emphasize that the invention is not limited to the illustrated embodiment, since different adjusting mechanisms 11 can be used for the valve tappet 5. It is merely necessary to ensure that a magnetic control connection is provided between the adjusting mechanism 11 and the valve tappet. The safety valve S could be opened or closed when the adjusting mechanism 11 was actuated. This means that the gas supply pipe 2 and the elbow 8 must not bring with them a magnetic shielding. In the case of generally installed plastic pipes, this condition is met in advance.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0074800A AT411385B (en) | 2000-04-28 | 2000-04-28 | SAFETY VALVE FOR A GAS SUPPLY PIPE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SK5732001A3 true SK5732001A3 (en) | 2001-11-06 |
| SK285404B6 SK285404B6 (en) | 2007-01-04 |
Family
ID=3680324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK573-2001A SK285404B6 (en) | 2000-04-28 | 2001-04-27 | Safety valve for gas supply conduit |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1154179B1 (en) |
| AT (2) | AT411385B (en) |
| CZ (1) | CZ295973B6 (en) |
| DE (1) | DE50102027D1 (en) |
| HR (1) | HRP20010286B1 (en) |
| HU (1) | HU224366B1 (en) |
| PL (1) | PL196810B1 (en) |
| RS (1) | RS49551B (en) |
| SK (1) | SK285404B6 (en) |
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| EP1382899A1 (en) * | 2002-07-18 | 2004-01-21 | Soda-Club (CO 2) SA | A valve for closing a container, container and a system and method for filling a container |
| FR2881500A1 (en) * | 2005-02-01 | 2006-08-04 | Clesse Ind Soc Par Actions Sim | Integrated automatic sealing valve for e.g. range, has movable flap to pass alternatively, under effect of magnetic ring, from opening position in which flap permits passage of gas, to closing position in which flap seals tube section |
| CN101469789B (en) * | 2007-12-28 | 2012-02-01 | 北京谊安医疗系统股份有限公司 | Magnetic safety valve tooling system and use method thereof |
| DE102008018122B4 (en) * | 2008-04-09 | 2012-03-08 | Viega Gmbh & Co. Kg | flow Switch |
| KR102018404B1 (en) | 2011-12-09 | 2019-09-04 | 프레스-바크 엔지니어링 에이피에스 | A pressure relief valve |
| JP6295499B2 (en) | 2012-07-18 | 2018-03-20 | プレス−ヴァク エンジニアリング アーペーエス | Pressure release valve |
| CN104455660A (en) * | 2014-11-26 | 2015-03-25 | 苏州福润机械有限公司 | Non-contact magnetic valve |
| CN105003697A (en) * | 2015-07-20 | 2015-10-28 | 江苏通达船用阀泵有限公司 | Novel air signal safety valve |
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| US1902027A (en) * | 1931-11-19 | 1933-03-21 | Norman F Henkel | Relief valve |
| AT233341B (en) * | 1961-09-04 | 1964-05-11 | Kromschroeder Ag G | Valve |
| US4223692A (en) * | 1977-10-19 | 1980-09-23 | Perry Landis H | Recreational vehicle safety system |
| US4179097A (en) * | 1978-05-31 | 1979-12-18 | Fiedler Frank Jr | Safety shut-off valve |
| JPS57190173A (en) * | 1981-05-19 | 1982-11-22 | Matsushita Electric Ind Co Ltd | Gas proportional control valve |
| US4792113A (en) * | 1982-07-16 | 1988-12-20 | Integrated Flow Systems, Inc. | Fluid flow control valve |
| JPS63156306A (en) * | 1986-12-19 | 1988-06-29 | Matsushita Electric Ind Co Ltd | Electromagnetic actuator |
| AT398238B (en) * | 1990-12-21 | 1994-10-25 | Pipelife Rohrsysteme Gmbh | Safety closing apparatus |
| SI9111169B (en) | 1990-07-06 | 1999-10-31 | Pipelife Rohrsysteme Gesellschaft M.B.H. | Safety closing device |
| DE4317084A1 (en) * | 1993-05-21 | 1994-11-24 | Gernot Schmid | Vacuum safety valve |
| DE19749279C2 (en) * | 1997-11-07 | 2000-05-18 | Schuck Franz Gmbh | Shut-off device for a pipeline |
-
2000
- 2000-04-28 AT AT0074800A patent/AT411385B/en not_active IP Right Cessation
-
2001
- 2001-03-29 AT AT01890101T patent/ATE265009T1/en not_active IP Right Cessation
- 2001-03-29 EP EP01890101A patent/EP1154179B1/en not_active Expired - Lifetime
- 2001-03-29 DE DE50102027T patent/DE50102027D1/en not_active Expired - Fee Related
- 2001-04-19 CZ CZ20011402A patent/CZ295973B6/en not_active IP Right Cessation
- 2001-04-19 HR HR20010286A patent/HRP20010286B1/en not_active IP Right Cessation
- 2001-04-26 RS YUP-306/01A patent/RS49551B/en unknown
- 2001-04-26 PL PL347286A patent/PL196810B1/en not_active IP Right Cessation
- 2001-04-27 SK SK573-2001A patent/SK285404B6/en not_active IP Right Cessation
- 2001-04-27 HU HU0101726A patent/HU224366B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| DE50102027D1 (en) | 2004-05-27 |
| ATA7482000A (en) | 2003-05-15 |
| EP1154179A3 (en) | 2003-01-22 |
| RS49551B (en) | 2007-02-05 |
| CZ295973B6 (en) | 2005-12-14 |
| EP1154179A2 (en) | 2001-11-14 |
| HRP20010286B1 (en) | 2007-06-30 |
| SK285404B6 (en) | 2007-01-04 |
| YU30601A (en) | 2003-01-31 |
| ATE265009T1 (en) | 2004-05-15 |
| HUP0101726A2 (en) | 2002-03-28 |
| HU0101726D0 (en) | 2001-07-30 |
| EP1154179B1 (en) | 2004-04-21 |
| AT411385B (en) | 2003-12-29 |
| HU224366B1 (en) | 2005-08-29 |
| HUP0101726A3 (en) | 2004-06-28 |
| HRP20010286A2 (en) | 2001-12-31 |
| CZ20011402A3 (en) | 2001-12-12 |
| PL347286A1 (en) | 2001-11-05 |
| PL196810B1 (en) | 2008-02-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed due to non-payment of maintenance fees |
Effective date: 20100427 |