DE202012003282U1 - sucker - Google Patents
sucker Download PDFInfo
- Publication number
- DE202012003282U1 DE202012003282U1 DE202012003282U DE202012003282U DE202012003282U1 DE 202012003282 U1 DE202012003282 U1 DE 202012003282U1 DE 202012003282 U DE202012003282 U DE 202012003282U DE 202012003282 U DE202012003282 U DE 202012003282U DE 202012003282 U1 DE202012003282 U1 DE 202012003282U1
- Authority
- DE
- Germany
- Prior art keywords
- filter
- pressure
- current
- processor
- power
- 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.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/2831—Motor parameters, e.g. motor load or speed
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/0095—Suction cleaners or attachments adapted to collect dust or waste from power tools
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/19—Means for monitoring filtering operation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/20—Means for cleaning filters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/2821—Pressure, vacuum level or airflow
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2842—Suction motors or blowers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
Abstract
Sauger mit mindestens einem Motor, mit einem Sauganschluss für ein mit dem Sauger zu verbindendes Gerät, wie einem Werkzeug, mit mindestens einem Filter und einer Gerätesteckdose, an die das Gerät elektrisch anschließbar ist, dadurch gekennzeichnet, dass der Sauger wenigstens einen Strom/Leistungssensor (10) aufweist, der die Strom/Leistungsaufnahme des an die Gerätesteckdose (8) angeschlossenen Gerätes (6) erfasst und der an einen Prozessor (12) angeschlossen ist, der unter Berücksichtigung des Strom/Leistungsaufnahmewertes ein Signal zur Reinigung des Filters (2) liefert.Suction cup with at least one motor, with a suction connection for a device to be connected to the suction device, such as a tool, with at least one filter and a device socket to which the device is electrically connectable, characterized in that the suction device comprises at least one current / power sensor ( 10), which detects the current / power consumption of the device (8) connected to the device (6) and which is connected to a processor (12), which provides a signal for cleaning the filter (2) taking into account the current / power consumption value ,
Description
Die Erfindung betrifft einen Sauger nach dem Oberbegriff des Anspruches 1.The invention relates to a sucker according to the preamble of
Solche Sauger dienen dazu, das beim Arbeiten mit dem an den Sauger angeschlossenen Gerät anfallende Sauggut augenblicklich abzusaugen. Hierzu ist das Gerät über einen Saugschlauch mit dem Sauganschluss des Saugers verbunden. Außerdem ist das Gerät über ein Kabel an die Gerätesteckdose des Saugers angeschlossen. Das angeschlossene Gerät kann beispielsweise ein Bohrer oder ein Schleifgerät sein. Das beim Arbeiten mit solchen Geräten anfallende Sauggut wird sofort am Arbeitsbereich abgesaugt und gelangt über den Sauganschluss in den Behälter des Saugers. Das Sauggut bleibt an der Außenseite des Filters hängen, während die Luft durch den Filter hindurch strömt und über den Motor wieder ins Freie tritt. Mit zunehmender Zeit wird das Filter zugesetzt, so dass eine Filterreinigung erforderlich ist. Häufig erfolgt die Filterreinigung zu einem Zeitpunkt, zu dem das Filter noch eine ausreichende Durchlässigkeit hat.Such suckers serve to suck off the suction material occurring when working with the device connected to the vacuum cleaner instantaneously. For this purpose, the device is connected via a suction hose to the suction port of the nipple. In addition, the device is connected via a cable to the device socket of the vacuum cleaner. The connected device may be, for example, a drill or a grinder. The suction material that accumulates when working with such devices is immediately sucked off at the work area and reaches the container of the vacuum cleaner via the suction connection. The sump remains hanging on the outside of the filter as the air passes through the filter and returns to the outside via the engine. As time goes on, the filter is added so that filter cleaning is required. Frequently, the filter cleaning takes place at a time when the filter still has sufficient permeability.
Insbesondere berücksichtigt der Sauger nicht die Strom/Leistungsaufnahme des angeschlossenen Gerätes. Dies führt dazu, dass der Sauger mit einer zu hohen Saugleistung arbeitet, obwohl das angeschlossene Gerät selbst nur wenig Sauggut erzeugt.In particular, the vacuum cleaner does not take into account the current / power consumption of the connected device. This results in the vacuum cleaner working with too high a suction power, even though the connected device itself only generates a small amount of suction material.
Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Sauger so auszubilden, dass die Filterreinigung an die Strom/Leistungsaufnahme des angeschlossenen Gerätes angepasst werden kann.The invention is based on the object, the generic vacuum cleaner in such a way that the filter cleaning can be adapted to the power / power consumption of the connected device.
Diese Aufgabe wird beim gattungsgemäßen Sauger erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention with the characterizing features of
Beim erfindungsgemäßen Sauger kann die Strom/Leistungsaufnahme des an die Gerätesteckdose angeschlossenen Gerätes mit Hilfe des Strom/Leistungssensors gemessen werden. Anhand des Strom/Leistungsaufnahmewertes kann der Prozessor das Signal zur Filterreinigung ausgeben, das die Strom/Leistungsaufnahme des angeschlossenen Gerätes berücksichtigt. So ist bei einem Gerät mit einer geringen Strom/Leistungsaufnahme eine Filterreinigung in wesentlich größeren Zeitabständen notwendig als bei einem Gerät mit einer hohen Strom/Leistungsaufnahme. Auf diese Weise wird die Filterreinigung in Abhängigkeit von der Strom/Leistungsaufnahme des angeschlossenen Gerätes erst dann eingeleitet, wenn diese Reinigung tatsächlich erforderlich ist.With the vacuum cleaner according to the invention, the current / power consumption of the device connected to the device socket can be measured with the aid of the current / power sensor. Based on the current / power consumption value, the processor can output the signal for filter cleaning, which takes into account the current / power consumption of the connected device. Thus, in a device with a low power / power consumption, a filter cleaning in much larger time intervals is necessary than in a device with a high current / power consumption. In this way, the filter cleaning is initiated depending on the current / power consumption of the connected device only when this cleaning is actually required.
Darüber hinaus kann das vom Strom/Leistungssensor an den Prozessor gelieferte Signal auch dazu herangezogen werden, die Drehzahl des Motors entsprechend der Strom/Leistungsaufnahme des angeschlossenen Gerätes zu steuern und/oder zu regeln. Bei einem leistungsschwachen Gerät ist eine geringere Saugleistung erforderlich als bei einem leistungsstarken Gerät, bei dem eine wesentlich größere Menge an Sauggut, beispielsweise Bohrstaub, Schleifstaub und dergleichen anfällt. Der Anwender des Saugers muss somit die Leistung des angeschlossenen Gerätes nicht kennen; vielmehr stellt sich der erfindungsgemäße Sauger selbsttätig auf die Strom/Leistungsaufnahme des angeschlossenen Gerätes ein.In addition, the signal provided by the current / power sensor to the processor may also be used to control and / or regulate the speed of the motor in accordance with the current / power consumption of the connected device. In a low-power device, a lower suction power is required as in a powerful device in which a much larger amount of suction material, such as drilling dust, grinding dust and the like is obtained. The user of the vacuum cleaner therefore does not need to know the power of the connected device; Rather, the sucker according to the invention automatically adjusts to the current / power consumption of the connected device.
Im Prozessor ist vorteilhaft eine Tabelle gespeichert, in der unterschiedliche Strom/Leistungsaufnahmewerte anzuschließender Geräte sowie die zugehörigen Drehzahlwerte des Motors des Saugers und/oder die Zeitdauer angegeben sind, wann das Signal zur Filterreinigung abgegeben werden soll.The processor advantageously stores a table in which different current / power consumption values of devices to be connected as well as the associated speed values of the motor of the vacuum cleaner and / or the time period are indicated when the signal for filter cleaning is to be output.
Vorteilhaft wird zusätzlich zur Strom/Leistungsaufnahme des angeschlossenen Gerätes auch der Druck in Strömungsrichtung hinter dem Filter des Saugers mit Hilfe wenigstens eines Drucksensors erfasst. Er liefert ein entsprechendes Drucksignal an den Prozessor, das in Verbindung mit dem Strom/Leistungsaufnahmewert dazu herangezogen wird, dass der Prozessor das Signal zur Filterreinigung erzeugt. Dadurch kann der Zeitpunkt der Filterreinigung noch besser an den tatsächlichen Grad der Verschmutzung des Filters angepasst werden, da nicht nur der Strom/Leistungsaufnahmewert, sondern auch der Druckwert zur Signalerzeugung herangezogen wird.Advantageously, in addition to the current / power consumption of the connected device, the pressure in the flow direction behind the filter of the nipple is detected by means of at least one pressure sensor. It provides a corresponding pressure signal to the processor which, in conjunction with the current / power consumption value, is used to cause the processor to generate the filter cleaning signal. As a result, the time of the filter cleaning can be better adapted to the actual degree of contamination of the filter, since not only the current / power consumption value, but also the pressure value for signal generation is used.
Bei einer besonders vorteilhaften Ausführungsform hat der erfindungsgemäße Sauger zwei Drucksensoren, die den Druck vor sowie hinter dem Filter erfassen und die entsprechenden Druckwerte dem Prozessor überliefern. Für den Einsatz der beiden Drucksensoren können die Druckabsolutwerte in diesen beiden, luftdicht gegeneinander abgeschlossenen Räumen erfasst werden. Aufgrund der Kenntnis der Absolutwerte der beiden Drücke kann der Zeitpunkt des Beginns der Filterreinigung sehr genau an den Verschmutzungsgrad des Filters angepasst werden.In a particularly advantageous embodiment, the nipple according to the invention has two pressure sensors which detect the pressure in front of and behind the filter and deliver the corresponding pressure values to the processor. For the use of the two pressure sensors, the pressure absolute values can be recorded in these two air-tight sealed rooms. Due to the knowledge of the absolute values of the two pressures, the time of the beginning of the filter cleaning can be adapted very precisely to the degree of contamination of the filter.
Eine vorteilhafte Filterreinigung ist dann möglich, wenn das Filter mit einer Rütteleinrichtung versehen ist. Das vom Prozessor gelieferte Signal schaltet die Rütteleinrichtung ein, wodurch das Filter in so starke Rüttelbewegungen versetzt wird, dass das an der Außenseite des Filters anhaftende Sauggut abfällt.An advantageous filter cleaning is possible if the filter is provided with a vibrator. The signal provided by the processor turns on the vibrator, causing the filter to vibrate so strongly that the suction material adhering to the outside of the filter drops.
Die Sensoren und der Prozessor sitzen vorteilhaft auf einer gemeinsamen Platine, die darüber hinaus vorteilhaft in einem gegen den Saugstrom abgedichteten Behälterraum untergebracht ist.The sensors and the processor sit advantageously on a common board above it In addition, advantageously housed in a sealed against the suction flow container space.
Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung.Further features of the invention will become apparent from the other claims, the description and the drawings.
Die Erfindung wird anhand eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles näher erläutert. Die Zeichnung zeigt in schematischer Darstellung einen erfindungsgemäßen Sauger.The invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawing. The drawing shows a schematic representation of a sucker according to the invention.
Der Sauger hat einen Behälter
Sobald das Filter
Anstelle der Rütteleinrichtung
Das Gerät
Im Prozessor
Mit dem Strom/Leistungssensor
Ist an die Steckdose
Die vom Strom/Leistungssensor
Denkbar ist auch eine Kombination mit Filterreinigungseinrichtungen, die es ermöglichen, während des Saugbetriebes zu reinigen. Das grundsätzliche Verfahren bleibt wie oben beschrieben; lediglich die Abschaltung des Motors
Auf diese Weise kann die Filterreinigung in Abhängigkeit von der Strom/Leistungsaufnahme des Gerätes
Darüber hinaus kann die Drehzahl des Motors
Bei einer weiteren Ausführungsform wird die Filterreinigung unter Berücksichtigung der Strom/Leistungsaufnahme des Gerätes
Die Zeichnung zeigt ein weiteres Ausführungsbeispiel, wie der Drucksensor
Bei einer weiteren Ausführungsform werden beide Drucksensoren
Die beschriebenen Ausführungsformen des Saugers zeichnen sich dadurch aus, dass eine Filterreinigung sehr zeitnah bezüglich des Zusetzungsgrades des Filters durchgeführt werden kann.The described embodiments of the nipple are characterized in that a filter cleaning can be carried out very quickly with respect to the degree of clogging of the filter.
Claims (10)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012003282U DE202012003282U1 (en) | 2012-03-27 | 2012-03-27 | sucker |
EP13001510.0A EP2644073B1 (en) | 2012-03-27 | 2013-03-25 | Sucker |
ES13001510.0T ES2565309T3 (en) | 2012-03-27 | 2013-03-25 | Vaccum cleaner |
PL13001510T PL2644073T3 (en) | 2012-03-27 | 2013-03-25 | Sucker |
DK13001510.0T DK2644073T3 (en) | 2012-03-27 | 2013-03-25 | Sucks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012003282U DE202012003282U1 (en) | 2012-03-27 | 2012-03-27 | sucker |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202012003282U1 true DE202012003282U1 (en) | 2012-04-18 |
Family
ID=46083366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202012003282U Expired - Lifetime DE202012003282U1 (en) | 2012-03-27 | 2012-03-27 | sucker |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2644073B1 (en) |
DE (1) | DE202012003282U1 (en) |
DK (1) | DK2644073T3 (en) |
ES (1) | ES2565309T3 (en) |
PL (1) | PL2644073T3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2789283A1 (en) * | 2013-04-12 | 2014-10-15 | Festool GmbH | Suction device and method for operating the same |
WO2015139751A1 (en) | 2014-03-20 | 2015-09-24 | Alfred Kärcher Gmbh & Co. Kg | Method for cleaning a filter of a dust suction device, and dust suction device |
EP3120744A1 (en) * | 2015-07-24 | 2017-01-25 | BSH Hausgeräte GmbH | Device for controlling a cleaner of a filter unit for a vacuum cleaner |
EP3320822A1 (en) * | 2016-11-07 | 2018-05-16 | Festool GmbH | Suction device with a connection device |
EP3498142A1 (en) * | 2017-12-18 | 2019-06-19 | HILTI Aktiengesellschaft | Efficient filter cleaning |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016100780A1 (en) | 2016-01-19 | 2017-07-20 | Festool Gmbh | suction device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4747850B2 (en) * | 2006-01-20 | 2011-08-17 | 日立工機株式会社 | Dust collector |
JP5185551B2 (en) * | 2007-03-19 | 2013-04-17 | 日立工機株式会社 | Dust collector |
US7962994B2 (en) * | 2007-10-11 | 2011-06-21 | Black & Decker Inc. | Vacuum electronic switch detection system |
-
2012
- 2012-03-27 DE DE202012003282U patent/DE202012003282U1/en not_active Expired - Lifetime
-
2013
- 2013-03-25 EP EP13001510.0A patent/EP2644073B1/en active Active
- 2013-03-25 DK DK13001510.0T patent/DK2644073T3/en active
- 2013-03-25 ES ES13001510.0T patent/ES2565309T3/en active Active
- 2013-03-25 PL PL13001510T patent/PL2644073T3/en unknown
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2789283A1 (en) * | 2013-04-12 | 2014-10-15 | Festool GmbH | Suction device and method for operating the same |
WO2015139751A1 (en) | 2014-03-20 | 2015-09-24 | Alfred Kärcher Gmbh & Co. Kg | Method for cleaning a filter of a dust suction device, and dust suction device |
RU2654420C2 (en) * | 2014-03-20 | 2018-05-17 | Альфред Кэрхер Гмбх Унд Ко. Кг | Method of cleaning filter of vacuum cleaner and vacuum cleaner |
US10874969B2 (en) | 2014-03-20 | 2020-12-29 | Alfred Kärcher SE & Co. KG | Method for cleaning a filter of a vacuum cleaning apparatus and vacuum cleaning apparatus therefor |
EP3120744A1 (en) * | 2015-07-24 | 2017-01-25 | BSH Hausgeräte GmbH | Device for controlling a cleaner of a filter unit for a vacuum cleaner |
EP3320822A1 (en) * | 2016-11-07 | 2018-05-16 | Festool GmbH | Suction device with a connection device |
EP3498142A1 (en) * | 2017-12-18 | 2019-06-19 | HILTI Aktiengesellschaft | Efficient filter cleaning |
WO2019120809A1 (en) * | 2017-12-18 | 2019-06-27 | Hilti Aktiengesellschaft | Efficient filter cleaning |
US11564543B2 (en) | 2017-12-18 | 2023-01-31 | Hilti Aktiengesellschaft | Efficient filter cleaning |
Also Published As
Publication number | Publication date |
---|---|
DK2644073T3 (en) | 2016-05-30 |
EP2644073B1 (en) | 2016-02-10 |
EP2644073A1 (en) | 2013-10-02 |
ES2565309T3 (en) | 2016-04-01 |
PL2644073T3 (en) | 2016-08-31 |
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Legal Events
Date | Code | Title | Description |
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R207 | Utility model specification |
Effective date: 20120606 |
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R150 | Utility model maintained after payment of first maintenance fee after three years | ||
R151 | Utility model maintained after payment of second maintenance fee after six years | ||
R158 | Lapse of ip right after 8 years |