DE202005010612U1 - Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode - Google Patents

Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode Download PDF

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Publication number
DE202005010612U1
DE202005010612U1 DE202005010612U DE202005010612U DE202005010612U1 DE 202005010612 U1 DE202005010612 U1 DE 202005010612U1 DE 202005010612 U DE202005010612 U DE 202005010612U DE 202005010612 U DE202005010612 U DE 202005010612U DE 202005010612 U1 DE202005010612 U1 DE 202005010612U1
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DE
Germany
Prior art keywords
ring
label
piston ring
area
component
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
Application number
DE202005010612U
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAN B&W Diesel GmbH
Original Assignee
MAN B&W Diesel GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MAN B&W Diesel GmbH filed Critical MAN B&W Diesel GmbH
Priority to DE202005010612U priority Critical patent/DE202005010612U1/en
Publication of DE202005010612U1 publication Critical patent/DE202005010612U1/en
Priority to KR1020060060444A priority patent/KR20070005488A/en
Priority to JP2006183150A priority patent/JP2007016994A/en
Priority to FI20060657A priority patent/FI122906B/en
Priority to CNA2006101054095A priority patent/CN1920286A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/20—Rings with special cross-section; Oil-scraping rings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F5/00—Piston rings, e.g. associated with piston crown
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details
    • F16J9/22—Rings for preventing wear of grooves or like seatings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/908—Seal for use in rotating and reciprocating arrangement
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/909—Similar sealing structures for mounting on piston and about rod

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The ring has inner and outer sides (14, 13), and a label that is provided on a small stressed surface section within an area of the side (14) for identification of the ring, where the area of the side (14) defines an internal diameter of the ring. The label includes a text and a coded barcode, where the text contains data such as name of a producer, manufacturing date, drawing number, code number and serial number of the ring.

Description

Die Erfindung betrifft ein verschleißanfälliges Bauteil, insbesondere einen Kolbenring für eine Brennkraftmaschine, gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a component susceptible to wear, in particular a piston ring for an internal combustion engine, according to the preamble of claim 1.

Aus dem Stand der Technik ist bereits bekannt, verschleißanfällige Bauteile, wie z.B. Kolbenringe, zur Bauteilidentifikation mit einer Beschriftung, insbesondere mit einer Laserbeschriftung, zu versehen. So werden nach dem Stand der Technik Kolbenringe an einer Oberflanke derselben mit einem Text beschriftet, der unter anderem einen Herstellernamen, ein Herstelldatum, eine Sachnummer sowie weitere Konstruktionsdaten des Kolbenrings enthält. Beim Aufbringen einer solchen Beschriftung auf die Oberflanke des Kolbenrings tritt das Problem auf, dass die Beschriftung sich bereits nach relativ kurzer Betriebszeit des Kolbenrings abnutzt, so dass die Beschriftung während des Betriebs des Kolbenrings verloren geht. Bei Servicearbeiten bzw. Wartungsarbeiten kann ein demontierter Kolbenring dann nicht mehr eindeutig zugeordnet werden, wenn nicht vorab eine exakte Bestandsaufnahme durchgeführt wurde. Dies ist aus Praktikabilitätsgründen insgesamt von Nachteil.Out the prior art is already known, wear-prone components, such as. Piston rings, for component identification with a label, in particular with a laser inscription to provide. So be after the state The technology piston rings on a top edge of the same with a Text including, inter alia, a manufacturer's name, a date of manufacture, a part number as well as further design data of the piston ring contains. At the Applying such a label on the upper flank of the piston ring The problem arises that the label is already relative short operating time of the piston ring wears off, so that the label while the operation of the piston ring is lost. For service work or maintenance work, a disassembled piston ring then no longer clearly assigned, if not in advance, an exact inventory carried out has been. This is for reasons of practicality overall disadvantageous.

Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zugrunde, ein neuartiges Bauteil zu schaffen.Of these, Based on the present invention, the problem is based to create a novel component.

Dieses Problem wird durch ein Bauteil gemäß Anspruch 1 gelöst. Erfindungsgemäß ist die Beschriftung auf einen gering beanspruchten und damit einem geringen Verschleiß ausgesetzten Oberflächenabschnitt des Bauteils aufgebracht.This Problem is solved by a component according to claim 1. According to the invention Labeling on a low-stressed and thus a low Wear exposed surface section applied to the component.

Im Sinne der hier vorliegenden Erfindung wird vorgeschlagen, das Bauteil in einem gering beanspruchten Oberflächenabschnitt zu beschriften. Bei Kolbenringen wird die Beschichtung vorzugsweise im Bereich einer Innenflanke aufgetragen, die einen Innendurchmesser des Kolbenrings definiert. Die Beschriftung kann dabei als Laserbeschriftung oder in jeder anderen Beschriftungstechnik auf den einem geringen Verschleiß ausgesetzten Oberflächenabschnitt aufgebracht werden. Bedingt dadurch, dass im Sinne der Erfindung die Beschriftung des Bauteils in einem chemisch und mechanisch gering beanspruchten Bereich bzw. Oberflächenabschnitt des Bauteils aufgetragen wird, unterliegt die Beschriftung während des Betriebs einer geringen Abnutzung. Somit kann über die gesamte Lebensdauer des Bauteils eine eindeutige Bauteilidentifikation gewährleistet werden.in the For the purposes of the present invention, it is proposed that the component to label in a lightly stressed surface section. at Piston rings, the coating is preferably in the range of Internal edge applied, which has an inner diameter of the piston ring Are defined. The inscription can be laser marking or in any other labeling technique on the low wear exposed surface section be applied. Due to the fact that in the sense of the invention the inscription of the component in a chemically and mechanically low claimed area or surface portion of the component is applied, the label is subject to a low during operation Wear. Thus, over the entire life of the component a unique component identification be guaranteed.

Nach einer vorteilhaften Weiterbildung der Erfindung umfasst die Beschriftung neben einem Text auch einen Barcode, wobei der Barcode vorzugsweise als verschlüsselter Barcode ausgeführt ist.To an advantageous embodiment of the invention includes the label in addition to a text also a barcode, the barcode preferably as encrypted Barcode is executed.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ein Ausführungsbeispiel der Erfindung wird, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:preferred Further developments of the invention will become apparent from the dependent claims and the following description. An embodiment of the invention is without limitation to be closer to the drawing explained. Showing:

1 ein als Kolbenring ausgebildetes, verschleißanfälliges Bauteil im Sinne der hier vorliegenden Erfindung; und 1 a trained as a piston ring, wear-prone component in the context of the present invention; and

2 einen Querschnitt durch das verschleißanfällige Bauteil der 1 entlang der Schnittrichtung II-II. 2 a cross section through the wear-prone component of 1 along the cutting direction II-II.

Nachfolgend wird die hier vorliegende Erfindung unter Bezugnahme auf 1 und 2 im größeren Detail beschrieben.Hereinafter, the present invention will be described with reference to FIG 1 and 2 described in greater detail.

1 und 2 zeigen als verschleißanfälliges Bauteil einen Kolbenring 10, wobei der Kolbenring 10 gemäß 2 eine Oberflanke 11, eine Unterflanke 12, eine Außenflanke 13 sowie eine Innenflanke 14 aufweist. Im Sinne der hier vorliegenden Erfindung wird nun vorgeschlagen, den Kolbenring 10 im Bereich eines gering beanspruchten und damit einem geringen Verschleiß ausgesetzten Oberflächenabschnitts, nämlich im Bereich der Innenflanke 14, mit einer Beschriftung zu versehen. Die Beschriftung kann dabei in den Bereichen 14a und/oder 14b und/oder 14c der Innenflanke 14 des Kolbenrings 10 aufgetragen werden, wobei der Bereich 14c den Innendurchmesser des Kolbenrings 10 bestimmt und wobei die Bereiche 14a und 14b gegenüber dem Bereich 14c angeschrägt sind und demnach eine Phase ausbilden. Die Beschriftung kann in einem oder mehreren der Bereiche 14a, 14b und 14c der Innenflanke 14 auf den Kolbenring 10 aufgetragen werden. Da die Innenflanke 14 des Kolbenrings 10 im Betrieb einem geringen mechanischen und/oder chemischen Verschleiß ausgesetzt ist, verbleibt die Beschriftung über die gesamte Betriebsdauer des Kolbenrings 10 auf der Innenflanke 14, so dass auch nach Ausbau des Kolbenrings 10 im Wartungsfall bzw. Servicefall eine eindeutige Identifikation desselben gewährleistet ist. 1 and 2 show as a wear-prone component a piston ring 10 , wherein the piston ring 10 according to 2 a topside 11 , a lower flank 12 , an outside flank 13 as well as an inside flank 14 having. For the purposes of the present invention, it is now proposed, the piston ring 10 in the range of a low-stressed and thus exposed to a low wear surface portion, namely in the region of the inner edge 14 to be provided with a label. The inscription can be in the areas 14a and or 14b and or 14c the inner flank 14 of the piston ring 10 be applied, the area 14c the inner diameter of the piston ring 10 determined and where the areas 14a and 14b opposite the area 14c Beveled and therefore form a phase. The caption may be in one or more of the areas 14a . 14b and 14c the inner flank 14 on the piston ring 10 be applied. Because the inside flank 14 of the piston ring 10 In operation is exposed to low mechanical and / or chemical wear, the label remains over the entire service life of the piston ring 10 on the inside flank 14 , so even after removal of the piston ring 10 in the case of maintenance or service case a unique identification of the same is guaranteed.

Bei der auf den Kolbenring 10 im Bereich der Innenflanke 14 desselben aufgebrachten Beschriftung handelt es sich um einen Text in Kombination mit einem vorzugsweise verschlüsselten Barcode. Der Text enthält Angaben wie Herstellername, Herstellerdatum, Zeichnungsnummer, Sachnummer, Top-Lage, Seriennummer sowie konstruktionsspezifische Daten des Kolbenrings. Diese Textdaten sind vom Servicepersonal durch bloßes Ablesen manuell auf konventionelle Art und Weise auswertbar.At the on the piston ring 10 in the area of the inner flank 14 The same applied label is a text in combination with a preferably encrypted barcode. The text contains information such as manufacturer name, manufacturer's date, drawing number, article number, top position, serial number and construction-specific data of the piston ring. These textual data can be manually evaluated by the service personnel by mere reading in a conventional manner.

Im Sinne der hier vorliegenden Erfindung wird vorgeschlagen, dass die Beschriftung des Kolbenrings 10 neben dem Text auch einen Barcode umfasst, der vorzugsweise als codierter Barcode ausgebildet ist. Ein solcher Barcode kann mit Hilfe einer Erfassungseinrichtung optisch ausgelesen werden, um so eine automatisierte Erfassung und Auswertung in einem EDV-System zu ermöglichen. Dann, wenn ein verschlüsselter Barcode verwendet wird, sind die Daten nur von berechtigten Parteien, so z.B. von dem Hersteller des Kolbenrings, auswertbar.For the purposes of the present invention, it is proposed that the lettering of the piston ring 10 in addition to the text also includes a barcode, which is preferably designed as a coded barcode. Such a barcode can be optically read by means of a detection device, so as to enable an automated detection and evaluation in a computer system. Then, if an encrypted barcode is used, the data can only be evaluated by authorized parties, eg by the manufacturer of the piston ring.

Im Sinne der hier vorliegenden Erfindung wird demnach ein verschleißanfälliges Bauteil vorgeschlagen, welches an einem während des Bauteilbetriebs gering beanspruchten Oberflächenabschnitt eine Beschriftung zur Bauteilidentifikation trägt, wobei die Beschriftung einerseits einen Text und andererseits einen vorzugsweise codierten Barcode aufweist. Hierdurch ist gewährleistet, dass über die gesamte Lebensdauer des Bauteils die Beschriftung desselben beständig ist, um so Im Wartungsfall schnell und fehlerfrei ein Bauteil zu erfassen und gegebenenfalls Fertigungs- und Konstruktionsmängel eindeutig zurückzuverfolgen. Bei Verwendung eines Barcodes als Beschriftung sind entsprechende Daten schnell und fehlerfrei erfassbar sowie in einem EDV-System auswertbar. Hierdurch können Kosteneinsparungen realisiert werden.in the Accordingly, the present invention is a wear-prone component proposed, which at a low during component operation claimed surface section a Caption for component identification bears, with the caption on the one hand a text and on the other hand a preferably coded Barcode has. This ensures that over the lifetime of the component, the inscription of the same is stable, so as to detect a component quickly and error-free in case of maintenance and possibly manufacturing and design defects clearly retrace. When using a barcode as a caption are appropriate Data can be recorded quickly and accurately and in a computer system evaluable. This allows Cost savings are realized.

1010
Kolbenringpiston ring
1111
Oberflankeupper edge
1212
Unterflankeunder cross
1313
Außenflankeouter flank
1414
Innenflankeinside edge
14a14a
BereichArea
14b14b
BereichArea
14c14c
BereichArea

Claims (4)

Bauteil, insbesondere Kolbenring für eine Brennkraftmaschine, mit einer Beschriftung zur Identifikation des Bauteils, dadurch gekennzeichnet, dass die Beschriftung auf einen gering beanspruchten und damit einem geringen Verschleiß ausgesetzten Oberflächenabschnitt des Bauteils aufgebracht ist.Component, in particular piston ring for an internal combustion engine, with a label for identification of the component, characterized in that the label is applied to a low-stressed and thus exposed to low wear surface portion of the component. Bauteil nach Anspruch 1, dadurch gekennzeichnet, dass die Beschriftung auf eine Innenflanke (14) eines als Kolbenring (10) ausgebildeten Bauteils aufgebracht ist.Component according to claim 1, characterized in that the inscription on an inner edge ( 14 ) as a piston ring ( 10 ) formed component is applied. Bauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Beschriftung neben einem Text auch einen Barcode umfasst.Component according to claim 1 or 2, characterized that the label includes a barcode as well as a text. Bauteil nach Anspruch 3, dadurch gekennzeichnet, dass der Barcode ein verschlüsselter Barcode ist.Component according to claim 3, characterized that the barcode is an encrypted one Barcode is.
DE202005010612U 2005-07-06 2005-07-06 Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode Expired - Lifetime DE202005010612U1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE202005010612U DE202005010612U1 (en) 2005-07-06 2005-07-06 Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode
KR1020060060444A KR20070005488A (en) 2005-07-06 2006-06-30 Component, especially piston ring
JP2006183150A JP2007016994A (en) 2005-07-06 2006-07-03 Component
FI20060657A FI122906B (en) 2005-07-06 2006-07-05 A structural unit, in particular a piston ring
CNA2006101054095A CN1920286A (en) 2005-07-06 2006-07-06 Component, particularly piston ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005010612U DE202005010612U1 (en) 2005-07-06 2005-07-06 Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode

Publications (1)

Publication Number Publication Date
DE202005010612U1 true DE202005010612U1 (en) 2005-12-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE202005010612U Expired - Lifetime DE202005010612U1 (en) 2005-07-06 2005-07-06 Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode

Country Status (5)

Country Link
JP (1) JP2007016994A (en)
KR (1) KR20070005488A (en)
CN (1) CN1920286A (en)
DE (1) DE202005010612U1 (en)
FI (1) FI122906B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008057514B3 (en) * 2008-11-15 2010-02-18 Federal-Mogul Burscheid Gmbh Piston ring for an internal combustion engine
DE102009016429A1 (en) * 2009-04-04 2010-10-07 Kempchen Dichtungstechnik Gmbh Static flat seal i.e. flange seal, has optically readable marking designed as barcode and directly formed on material of seal, where barcode is formed in two-dimension with matrix-like sample and corresponds to character string

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2096580B1 (en) * 2008-02-29 2011-12-21 Carl Freudenberg KG Product marking
EP2128802A1 (en) 2008-05-29 2009-12-02 Carl Freudenberg KG Component provided with machine readable identification
JP2016079938A (en) * 2014-10-21 2016-05-16 株式会社リケン Valve lifter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543645A (en) * 1977-06-08 1979-01-11 Riken Piston Ring Ind Co Ltd Method for inscribing pistonring
DE3504517A1 (en) * 1985-02-09 1986-08-14 Goetze Ag, 5093 Burscheid Apparatus for improving the alignment accuracy of eccentric workpieces, especially of piston rings
JPS62242178A (en) * 1986-03-25 1987-10-22 Riken Corp Marking method for piston ring
JPH0613475A (en) * 1992-04-28 1994-01-21 Matsushita Electric Ind Co Ltd Method of forming electronic part, printed wiring board and electronic apparatus having code, and code
JPH09121914A (en) * 1995-10-30 1997-05-13 Kosho:Kk Finger ring
US6582197B2 (en) * 2001-02-22 2003-06-24 Simon E. Coulson Method of investment casting with casting identification
JP2003052425A (en) * 2001-10-22 2003-02-25 Miyota Seisakusho:Kk Special metal accessory with pattern on surface
JP4052190B2 (en) * 2002-10-29 2008-02-27 株式会社デンソー Two-dimensional code formation structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008057514B3 (en) * 2008-11-15 2010-02-18 Federal-Mogul Burscheid Gmbh Piston ring for an internal combustion engine
WO2010054612A1 (en) 2008-11-15 2010-05-20 Federal-Mogul Burscheid Gmbh Piston ring for an internal combustion engine
DE102009016429A1 (en) * 2009-04-04 2010-10-07 Kempchen Dichtungstechnik Gmbh Static flat seal i.e. flange seal, has optically readable marking designed as barcode and directly formed on material of seal, where barcode is formed in two-dimension with matrix-like sample and corresponds to character string

Also Published As

Publication number Publication date
JP2007016994A (en) 2007-01-25
KR20070005488A (en) 2007-01-10
FI20060657A (en) 2007-01-07
FI122906B (en) 2012-08-31
CN1920286A (en) 2007-02-28
FI20060657A0 (en) 2006-07-05

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