EP2212169A1 - Verfahren zur optimierung des schaltverhaltens einer behälterwarnvorrichtung eines ausgleichsbehälters sowie ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage mit einer schaltoptimierten behälterwarnvorrichtung - Google Patents
Verfahren zur optimierung des schaltverhaltens einer behälterwarnvorrichtung eines ausgleichsbehälters sowie ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage mit einer schaltoptimierten behälterwarnvorrichtungInfo
- Publication number
- EP2212169A1 EP2212169A1 EP08735941A EP08735941A EP2212169A1 EP 2212169 A1 EP2212169 A1 EP 2212169A1 EP 08735941 A EP08735941 A EP 08735941A EP 08735941 A EP08735941 A EP 08735941A EP 2212169 A1 EP2212169 A1 EP 2212169A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- magnet
- warning device
- vessel
- switching unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000035945 sensitivity Effects 0.000 claims description 11
- 230000005284 excitation Effects 0.000 claims description 10
- 230000004907 flux Effects 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 16
- 210000002105 tongue Anatomy 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/26—Reservoirs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
- G01F23/74—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
Definitions
- the invention relates to a method for optimizing the switching behavior of a container warning device of a surge tank according to the preamble of claim 1 and to a surge tank according to the preamble of claim 4.
- the required brake fluid is in the expansion tank, wherein the container warning device for monitoring the
- Tank level as a switching element usually has a reed switch with a reed contact and as a donor usually has a magnet. If the brake fluid level is lowered and the magnet passes a predetermined switching point, reed switches are bridged by the generated magnetic field, as the magnetic attraction force of the switching tongues exceeds the spring action of the individual switching tongues.
- the reed switch can, as described, be provided as a NO or NO switch, in which the tabs are open in the rest position. However, it is also possible to use a reed switch designed as an opener or NC switch, which has closed switching tongues in the idle state which are opened under the action of a magnetic force.
- This signal is evaluated in a control unit and the driver of the motor vehicle can be warned by a visual and / or audible indication. It must be ensured that the expansion tank is always filled with a legally stipulated minimum brake fluid in order not to question the function of the brake system.
- container warning devices are used to monitor the level of the container, in which a float provided with the magnet switches the reed contact as soon as the float assumes a position (switching point) in which the container level falls below a defined minimum. The reed contact triggers a recognizable warning signal for the driver.
- reed switches usually have a plurality of so-called switching lobes (main and side lobes) distributed along a longitudinal axis of the reed switch, which each represent a switching range or a switching point.
- switching lobes main and side lobes
- a switching point Immediately in the area of the reed switch is the magnetically sensitive switching point, the so-called main lobe. This switching point is usually used as a switching point for the container warning device.
- stops In order for the switching unit of the container warning device switches exclusively in the area of the main lobe, stops must be provided which precisely limit the displacement of the magnet and reliably prevent a shift in the side lobes, so that the switching behavior of the container warning device is ensured in a defined manner.
- known reservoirs - as known for example from DE 10 2005 009 657 Al - two attacks, which are provided on one and the same component to safely prevent a switching operation in the side lobes.
- DE 10 2005 009 657 Al are the Stops on the switching unit per se provided, since the container warning device is arranged in a cover of the expansion tank.
- the container warning device protrudes vertically into the interior of the container in the area of the housing - upper housing part or lower housing part - the two stops are provided in the upper housing part or in the lower housing part.
- a disadvantage is the complex and costly design of the known surge tank is considered, which is due to the provision of the two stops on a component, of which at least one stop must be positioned accurately.
- the object is achieved by the inventive method for optimizing the switching behavior of a
- Container warning device of a surge tank solved, which provides that the reed contact and the magnet are tuned so optimally optimized circuit that the magnet switches on a single switching lobe of the reed contact. As a result, only the main lobe of the reed contact is effective and the defined switching behavior at the predetermined switching point can be ensured.
- Switching sensitivity of the switching unit matched. An exact positioning of the attacks can be omitted.
- a sensitivity range of the reed contact is derived from the optimized switching sensitivity of the switching unit.
- Motor vehicle brake system comprising a housing comprising an upper housing part and a lower housing part and a container warning device for monitoring the container level of the expansion tank comprising a switching unit with a connector and a contact carrier, which projects with a portion in a guide tube which extends into a container interior, and a Reed-Konktakt as a switching element, which is arranged on the contact carrier in the region of the container interior and which is switchable by means of a magnet in a switching point at which the switching unit generates a signal for an electronic control unit, wherein the magnet is arranged in a float, which along the guide tube between two attacks is displaced, solved, the reed contact and magnet are tuned to one another according to one of these methods optimized switching.
- the magnet is provided as a plastic-bonded permanent magnet.
- the magnet is unbreakable and chipping the magnet can be avoided.
- the magnet has a magnetic flux density of about 14 mT and for the switching unit a suit excitation between 2.3 to 2.7 mT is provided, wherein the switching unit has a hysteresis pull excitation / fall excitation of 120 to 145%.
- This will be a robust and functionally reliable switching unit created because a shock-sensitive reed switch with relatively high and low switching sensitivity and a magnet with too low and too high flux density can be avoided.
- a first stop in the lower housing part and a second stop in the upper housing part are arranged.
- Figure 1 the expansion tank according to the invention in plan view
- FIG. 2 shows a detail of the invention
- Figure 3 shows a switching unit of the expansion tank according to the invention in longitudinal section
- FIG. 4 shows a further detail of the expansion tank according to the invention partially in longitudinal section
- Figure 5 shows a known surge tank in longitudinal section
- FIG. 6 is a schematic representation of the switching lobes of a reed switch.
- Fig. 1 to 4 partially as a detail of an expansion tank 1 according to the invention, which is attached for example to a master cylinder, not shown, a vehicle brake system.
- the surge tank 1 has a projecting into its interior guide tube 2, which is closed at its, the container interior facing the end.
- a float 3 slidably disposed, e.g. is formed as a ring and forms part of a container warning device for monitoring the container level.
- the float 3 carries an annular magnet 4 as a magnetic encoder.
- the expansion tank 1 consists of a housing 17 comprising a lower housing part 13 and a housing upper part 14, which are welded together at their edges.
- the first stop 6 for the float 3 is provided in the lower housing part 13.
- a second stop 15 is arranged in the upper housing part 14 in the region of the guide tube 2.
- the stopper 15 is formed by a plurality of ribs arranged on the guide tube 2. The arrangement of the stops 6, 15 in different housing components, the production of the surge tank 1 can be substantially simplified.
- the container warning device for monitoring the Container level comprises a switching unit 7 with a contact carrier 9, which is provided in the interior of the guide tube 2 and to which a reed switch 8 is attached with a reed contact as a switching element.
- the switching unit 7 further comprises a connector 10 having a housing 11 and may, in order to facilitate the assembly and to simplify the manufacture of the switching unit 7, as shown, be integrally formed of a plastic material.
- Contact lugs 12, to which the reed switch 8 is attached, as well as other components, such as resistors are provided in the contact carrier 9, for example, injected.
- shingles (paddles) of the reed switch 8 close by the generated magnetic field of the magnet 4 by the magnetic attraction of the switching tongues exceeds the spring action of the individual switching tongues.
- the reed switch 8 may be provided as NO or NO switch, in which the switching tongues are open in the rest position.
- a reed switch 8 embodied as an opener or NC switch, which has closed switching tongues in the idle state which are opened under the action of a magnetic force. The switching process generates a signal for an electronic switching unit of the motor vehicle brake system.
- the float 3 of this embodiment is integrally provided and has a radial recess into which the annular magnet 4 is pushed. Side walls of the recess are provided with holding means which secure the magnet 4 in its installed position.
- the magnet 4 is provided as a plastic-bonded permanent magnet, whereby the magnet 4 is resistant to breakage and chipping the magnet 4, which in the worst case lead to a wedging of the float 3 on the guide tube 2, can be avoided.
- Fig. 3 shows the arrangement of the reed switch 8 only schematically.
- the reed switch 8 may be attached to a circuit board. In order to protect the reed switch 8, this can be embedded in the material of the contact carrier 9, as shown in Fig. 3.
- the contact carrier 9 can for example be encapsulated in the area of the reed switch 8 with the same material or a portion 16 of the contact carrier 9, which protrudes into a guide tube 2 of the surge tank 1, are wrapped after attachment of the reed switch 8.
- the contact carrier 9 has a pot-shaped portion 18 which cooperates with a housing 17 formed on the annular projection 19.
- the reed switch 8 carrying portion 16 of the contact carrier 9 extends centrally from a bottom 20 of the cup-shaped portion 18 and the housing 11 of the connector 10 is perpendicular with respect to a longitudinal axis L of the switching unit. 7 formed on a wall 21 of the cup-shaped portion 18.
- Fig. 4 shows the partially cut switching unit 7 after mounting in the housing 17 of the surge tank 1.
- the guide tube 2 is provided concentrically within the annular projection 19, wherein for reinforcing the surge tank 1 in the region of the annular projection 19 between the annular Projection 19 and the guide tube 2 reinforcing ribs 22 are provided, which are shown in Fig. 1.
- a further stabilization of the switching unit 7 is ensured via a fit 23 in the inner region of the guide tube 2 - namely between the portion 16 of the contact carrier 9 and an inner side of the guide tube 2.
- the annular projection 19 is disposed in a region 24 of the housing 17, which is provided offset in the direction of the container interior compared to the remaining region 25 of the housing 17.
- the switching unit 7 does not protrude beyond the housing 17 and can be a hindrance neither during transport nor in the installed state of the expansion tank 1. Furthermore, it can be avoided by the housing geometry shown that the switching unit 7 in a wrong position - for example, rotated by 180 ° with respect to the longitudinal axis L - is installed.
- a detachable connection of the contact carrier 9 with the circumferential projection 19 may be configured, for example, as a bayonet connection, which comprises two diametrically opposite outbreaks 27 with undercuts on an inner side 26 of the cup-shaped section 18 and two diametrically opposite ribs 29 on an outer side 28 of the annular projection 19.
- This connection allows a simple interchangeability of the switching unit 7 without the use of a tool, wherein the backgrounds prevent accidental release of the compound. It is possible to provide other latching connections, such as a snap connection with resilient snap elements and corresponding elements for snapping the snap elements.
- the annular projection 19 is resilient and the edge 30 is sealingly against the inside 26 of the cup-shaped portion 18 at. As a result, the annular projection 19 has a dual function, since the projection 19 on the one hand an inner space 31 of the guide tube
- the outbreaks 27 presses against the ribs 29 of the bayonet connection. Due to the configuration of the ribs 29 and the outbreaks 27, the insertion direction of the switching unit 7 is fixed and takes place either counterclockwise until the bayonet connection engages. The disassembly of the switching unit 7 takes place by pressing the switching unit 7 against the edge 30 of the annular projection 19 and turning counterclockwise or clockwise until the bayonet connection dissolves.
- FIG. 5 shows the reed switch 8 with a plurality of characteristic lobes 32, 33, 34 distributed along a longitudinal axis of the reed switch 8, which represent a switching range or a switching point S.
- a switching point S Immediately in the area of the reed switch 8 is the most magnetically sensitive switching point, the so-called main lobe 32. This switching point is usually used as a switching point S for the container warning device.
- two side lobes 33, 34 adjoin the main lobe 32, which likewise constitute a switching point.
- Fig. 6 shows a section of a known surge tank 40. As can be seen, the float is
- the reed contact of the reed switch 8 and the magnet 4 according to the invention tuned optimally tuned to each other so that the magnet 4 switches to a single switching lobe of the reed contact by the magnetic flux density of the magnet 4 and the switching sensitivity of the switching unit 7 are matched to one another.
- the main lobe 32 of the reed contact is effective and the defined switching behavior at the predetermined switching point S is ensured, whereby an exact positioning of the stops 6,15 can be omitted or whereby the attacks can be completely eliminated.
- the magnet 4 has a magnetic flux density of approximately 14 mT and for the switching unit 7, a pull-in excitation between 2.3 to 2.7 mT is provided, wherein the switching unit 7 has a hysteresis of pickup excitation / fall excitation of 120 up to 145%.
- a robust and reliable switching unit is provided, since a shock-sensitive reed switch 8 with relatively high and low switching sensitivity and a magnet 4 with too low and too high flux density can be avoided.
- each container warning device can be designed to be optimized in terms of switching, irrespective of the design.
- the method is applicable to container warning devices that are welded to the expansion tank 1 or latched interchangeable, or which are provided integrated in the cover screw.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Level Indicators Using A Float (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007032521A DE102007032521A1 (de) | 2007-07-12 | 2007-07-12 | Verfahren zur Optimierung des Schaltverhaltens einer Behälterwarnvorrichtung eines Ausgleichsbehälters sowie Ausgleichbehälter für eine hydraulische Kraftfahrzeugbremsanlage mit einer schaltoptimierten Behälterwarnvorrichtung |
PCT/EP2008/054213 WO2009007145A1 (de) | 2007-07-12 | 2008-04-08 | Verfahren zur optimierung des schaltverhaltens einer behälterwarnvorrichtung eines ausgleichsbehälters sowie ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage mit einer schaltoptimierten behälterwarnvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2212169A1 true EP2212169A1 (de) | 2010-08-04 |
Family
ID=39876743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08735941A Ceased EP2212169A1 (de) | 2007-07-12 | 2008-04-08 | Verfahren zur optimierung des schaltverhaltens einer behälterwarnvorrichtung eines ausgleichsbehälters sowie ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage mit einer schaltoptimierten behälterwarnvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110239758A1 (de) |
EP (1) | EP2212169A1 (de) |
DE (1) | DE102007032521A1 (de) |
WO (1) | WO2009007145A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017222672A1 (de) * | 2017-12-13 | 2019-06-13 | Continental Teves Ag & Co. Ohg | Fluidbehälter mit einer Einrichtung zur Füllstandsüberwachung |
CN110345915B (zh) * | 2019-07-11 | 2021-04-20 | 中交公路养护工程技术有限公司 | 一种公路桥连续梁边跨现浇段预压检测装置及方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5153433Y2 (de) * | 1972-04-25 | 1976-12-21 | ||
US4165935A (en) * | 1977-10-25 | 1979-08-28 | B/W Controls Inc. | Differential float control |
DE3410858A1 (de) * | 1984-03-23 | 1985-10-03 | Alfred Teves Gmbh, 6000 Frankfurt | Elektrischer schalter |
DE3716135C2 (de) * | 1987-05-14 | 1994-09-22 | Teves Gmbh Alfred | Vorrichtung zur Erfassung der Füllstandshöhe in einem Ausgleichsbehälter |
DE102005009657B4 (de) | 2004-04-16 | 2013-11-21 | Continental Teves Ag & Co. Ohg | Behälter |
-
2007
- 2007-07-12 DE DE102007032521A patent/DE102007032521A1/de not_active Withdrawn
-
2008
- 2008-04-08 US US12/682,833 patent/US20110239758A1/en not_active Abandoned
- 2008-04-08 WO PCT/EP2008/054213 patent/WO2009007145A1/de active Application Filing
- 2008-04-08 EP EP08735941A patent/EP2212169A1/de not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO2009007145A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102007032521A1 (de) | 2009-01-15 |
WO2009007145A1 (de) | 2009-01-15 |
US20110239758A1 (en) | 2011-10-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2566731B1 (de) | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage | |
EP2237848B1 (de) | Filter mit einem datenspeicher mit antenne zur signalübertragung | |
EP2173592B1 (de) | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage | |
WO2008077771A1 (de) | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage | |
EP1728259A1 (de) | Vorrichtung zur berwachung eines behälterfällstandes | |
DE102010014668A1 (de) | Stellantrieb zum Stellen eines Stellglieds und Verfahren zum Erfassen der Stellung des Stellglieds | |
DE102010031557A1 (de) | Bereichserfassungsvorrichtung | |
WO2015140096A1 (de) | Stabförmiger magnetfeldsensor | |
DE102011078102B4 (de) | Elektromagnetisch betätigtes Sitzventil | |
DE102012107189A1 (de) | Elektronikmodul für eine Handhabe | |
EP2125467B1 (de) | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage | |
EP2212169A1 (de) | Verfahren zur optimierung des schaltverhaltens einer behälterwarnvorrichtung eines ausgleichsbehälters sowie ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage mit einer schaltoptimierten behälterwarnvorrichtung | |
DE102005009657B4 (de) | Behälter | |
DE102011118773B4 (de) | Vorrichtung zur berührungslosen Erfassung der Relativposition zweier relativ zueinander bewegbarer Teile | |
EP2209683B1 (de) | Verfahren zur prüfung einer behälterwarnvorrichtung eines ausgleichsbehälters sowie prüfvorrichtung zur prüfung einer behälterwarnvorrichtung | |
EP3444573A1 (de) | Schallkopf für einen durchflussmesser mit ausziehmitteln | |
EP3683479B1 (de) | Stellsystem für ein ventil | |
DE102015204760A1 (de) | Betätigungszylinder mit Sensoranordnung | |
WO2017092935A1 (de) | Behälter mit füllstandsgeber | |
DE102016112277A1 (de) | Bedienbaugruppe für ein Kraftfahrzeug | |
DE102009012475A1 (de) | Piezo-Schaltelement | |
DE102022105369A1 (de) | Hydrobuchse | |
WO2019115067A1 (de) | Fluidbehälter mit einer einrichtung zur füllstandsüberwachung | |
DE102020212629A1 (de) | Flüssigkeitsbehälter mit Absperrvorrichtung | |
EP3444574A1 (de) | Schallkopf für einen durchflussmesser mit gestufter seitenwand |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20100506 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHMIDT, BARBARA Inventor name: SCHIEL, LOTHAR Inventor name: OTTMANN, SVEN Inventor name: TANDLER, PETER Inventor name: NEUMANN, HANS-JUERGEN Inventor name: LUDWIG, JOHANN |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20101015 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20110807 |