EP0836886B1 - Switching flap for deactivating the cutting device of a document shredder an the like apparatus - Google Patents

Switching flap for deactivating the cutting device of a document shredder an the like apparatus Download PDF

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Publication number
EP0836886B1
EP0836886B1 EP97117388A EP97117388A EP0836886B1 EP 0836886 B1 EP0836886 B1 EP 0836886B1 EP 97117388 A EP97117388 A EP 97117388A EP 97117388 A EP97117388 A EP 97117388A EP 0836886 B1 EP0836886 B1 EP 0836886B1
Authority
EP
European Patent Office
Prior art keywords
switching flap
switching
housing
flap
underside
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
EP97117388A
Other languages
German (de)
French (fr)
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EP0836886A1 (en
Inventor
Hermann Schwelling
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0836886A1 publication Critical patent/EP0836886A1/en
Application granted granted Critical
Publication of EP0836886B1 publication Critical patent/EP0836886B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B02C2018/0023—Switching devices

Definitions

  • the invention relates to a switching flap according to the preamble of claim 1.
  • GB-A-2 138 700 is a device for comminuting of materials, such as documents, etc., known in the one on a shredder standing under a stand Has output opening, from the shredded material into a basket falls.
  • a swivel and one The toggle mechanism serves as a spring-loaded flap at the same time as a level sensor against overfilling the basket and as a closure of the dispensing opening.
  • On this Level sensor - switching flap - acts as an external one Spring element, which has a segment, which is also the switch actuated, is operatively connected to the switching flap and on the segment is connected via another joint.
  • the present invention therefore has the task of an extremely simple construction and assembly Flap valve design to create the practically without Bearing needs and absolutely insensitive to faults and therefore works reliably.
  • FIGS. 1 and 2 show first explanatory of the basic structure of the new version in that that on the underside 2a of a cutter housing 2 to the side of the clippings outlet gap "SP" a movable, on the motor limit switch "E” acting flap 1 is arranged.
  • the cutting unit housing 2 shown in these FIGS. 1 and 2 is with its underside 2a, which in itself is a Clippings container is facing upwards - i.e. on lying upside down - shown so that the switching flap 1 better is visible.
  • connection points 3, 4 and 5, 6 in the Housing underside 2a is insertable, immediately above the Plug connections 3, 4 and 5, 6 one over their whole Has length 4 extending resilient hinge "B" and on their side facing away from the clippings outlet gap "SP" 1 a one as switching cams for the actuation of the Actuating stop switch "E" Rib “S” or the like.
  • the directly on the plug connections 3 and 4 subsequent joint point "B" in that shown in Figure 2 Representation, located above the connection points 3 and 4.
  • the pluggable connection points as non-positive Snap connections 3 and positive guide pins 4 sit on the bottom of the switch flap facing the housing 1 b Housing underside 2a corresponding thereto Has recesses 5 and 6 and which, with respect to the Representation viewed in Fig. 2, immediately above the Plug connections 3, 4 and 5, 6 parallel to Housing underside 2a extending resilient hinge point as so-called bending groove "B" is introduced into the material thickness "D".
  • the Restoring force of the switching flap 1 is thus about the elasticity and geometry of the material in question, so that neither additional reset elements nor bearings or Control lever including transmission linkage prone to failure are required for the new solution.
  • Centering pins 7 and 8 on the housing sides 2d serve together the housing flange 2e for fixing the cutter housing 2 on a suitably trained, clippings not shown here.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

Die Erfindung bezieht sich auf eine Schaltklappe nach dem Oberbegriff des Patentanspruches 1.The invention relates to a switching flap according to the preamble of claim 1.

In das Schneidwerksgehäuse an dessen Unterseite integrierte Schaltklappen zum Zwecke der Antriebsstillsetzung bei gefülltem Schnittgutsammelbehälter sind an sich bekannt und bislang derart ausgebildet, dass ihre Bewegung über mehr oder minder aufwendige Hebel- und Gestängeteile samt zugehörigen Lagerungen auf einer mit der Antriebssteuerung verbundenen Endschalter übertragen wird.Integrated in the cutting unit housing on the underside Switch flaps for the purpose of stopping the drive when the clippings container is full known per se and so far trained in such a way that its Movement over more or less elaborate lever and Rod parts including associated bearings on one with the Drive control connected limit switch is transmitted.

So ist aus der GB-A-2 138 700 eine Vorrichtung zum Zerkleinern von Materialien, wie Dokumenten etc. bekannt, bei der ein auf einem Untergestell stehender Aktenvernichter eine Ausgabeöffnung hat, aus der Zerkleinerungsgut in einen Korb fällt. Eine schwenkbar gelagerte und von einem Kniehebelmechanismus federnd belastete Klappe dient gleichzeitig als Füllstandsfühler gegen Überfüllung des Korbes und als Verschluss der Ausgabeöffnung. Auf diesen Füllstandsfühler - Schaltklappe - wirkt ein externes Federelement, welches über ein Segment, das auch den Schalter betätigt, mit der Schaltklappe in Wirkverbindung steht und an dem Segment über eine weitere Gelenkstelle verbunden ist.GB-A-2 138 700 is a device for comminuting of materials, such as documents, etc., known in the one on a shredder standing under a stand Has output opening, from the shredded material into a basket falls. A swivel and one The toggle mechanism serves as a spring-loaded flap at the same time as a level sensor against overfilling the basket and as a closure of the dispensing opening. On this Level sensor - switching flap - acts as an external one Spring element, which has a segment, which is also the switch actuated, is operatively connected to the switching flap and on the segment is connected via another joint.

Die Hauptnachteile dieser bekannten Ausführungen liegen dabei vor allem in einem hohen baulichen Fertigungs- und Montageaufwand verbunden mit relativ großer Störanfälligkeit, bedingt durch die Stangen, Hebel etc.The main disadvantages of these known designs are especially in a high structural manufacturing and Assembly effort combined with relatively high susceptibility to faults, due to the rods, levers etc.

Die vorliegende Erfindung hat sich daher die Aufgabe gestellt, eine baulich und montagemäßig äußerst einfache Schaltklappenausführung zu schaffen, die praktisch ohne Lagerungen auskommt und absolut störungsunanfällig und somit betriebssicher arbeitet.The present invention therefore has the task of an extremely simple construction and assembly Flap valve design to create the practically without Bearing needs and absolutely insensitive to faults and therefore works reliably.

Gelöst wird diese Aufgabe durch die im Patentanspruch 1 angegebenen baulichen sowie anordnungstechnischen Mittel und Maßnahmen; die Unteransprüche enthalten hierzu vorteilhafte Weiterbildungen und Ausgestaltungsmerkmale, die zudem anhand von Zeichnungen im folgenden noch näher erläutert werden. This object is achieved by the in claim 1 specified structural and arrangement technical means and Activities; the sub-claims contain advantageous for this Further training and design features that also explained in more detail below with reference to drawings become.

Es zeigen:

Fig. 1
in perspektivischer Darstellung ein Aktenvernichter-Schneidwerksgehäuse mit der neuen Schaltklappe von unten betrachtet,
Fig. 2
die gleiche Ansicht mit noch nicht eingesetzter Schaltklappe,
Fig. 3
die neue Schaltklappe als Einzelteil. in gegenüber Fig. 1 vergrößertem Maßstab in Ansicht,
Fig. 4
eine Draufsicht zu Fig. 3 und
Fig. 5
eine Schnittdarstellung zu Fig. 3 gemäß der dortigen Linie AB.
Show it:
Fig. 1
a perspective view of a shredder cutting unit housing with the new switching flap viewed from below,
Fig. 2
the same view with the switching flap not yet inserted,
Fig. 3
the new switching flap as a single part. in an enlarged scale compared to FIG. 1 in view,
Fig. 4
a plan view of Fig. 3 and
Fig. 5
a sectional view of FIG. 3 along the line AB there.

Die Darstellungen in den Fig. 1 und 2 zeigen zunächst erläuternd den Grundaufbau der neuen Ausführung dahingehend, daß auf der Unterseite 2a eines Schneidwerksgehäuses 2 seitlich neben dem Schnittgutaustrittsspalt "SP" eine bewegliche, auf den Motorendschalter "E" wirkende Schaltklappe 1 angeordnet ist. The representations in FIGS. 1 and 2 show first explanatory of the basic structure of the new version in that that on the underside 2a of a cutter housing 2 to the side of the clippings outlet gap "SP" a movable, on the motor limit switch "E" acting flap 1 is arranged.

Das in diesen Figuren 1 und 2 gezeigte Schneidwerkgehäuse 2 ist mit seiner Unterseite 2a, die an sich einem Schnittgutsammelbehälter zugewandt ist, nach oben - also auf dem Kopf liegend - gezeigt, so dass die Schaltklappe 1 besser sichtbar ist.The cutting unit housing 2 shown in these FIGS. 1 and 2 is with its underside 2a, which in itself is a Clippings container is facing upwards - i.e. on lying upside down - shown so that the switching flap 1 better is visible.

Neu und zur Lösung der mit der Erfindung gestellten Aufgabe dienlich ist hierbei nun, dass die Schaltklappe 1 über entsprechende Anschlussstellen 3, 4 und 5, 6 in die Gehäuseunterseite 2a einsteckbar ist, unmittelbar oberhalb der Steckverbindungen 3, 4 und 5, 6 eine sich über ihre ganze Länge 4 erstreckende federnde Gelenkstelle "B" aufweist und auf ihrer dem Schnittgutaustrittsspalt "SP" abgewandten Seite 1 a eine als Schaltnocken für die Betätigung des die Antriebsstillsetzung bewirkenden Endschalters "E" dienende Rippe "S" o. dgl. trägt. Dabei ist unter oberhalb zu verstehen, dass die sich unmittelbar an die Steckverbindungen 3 und 4 anschließende Gelenkstelle "B", in der in Figur 2 gezeigten Darstellung, dort oberhalb der Anschlussstellen 3 und 4 befindet.New and to solve the problem posed by the invention It is useful here that the switching flap 1 over corresponding connection points 3, 4 and 5, 6 in the Housing underside 2a is insertable, immediately above the Plug connections 3, 4 and 5, 6 one over their whole Has length 4 extending resilient hinge "B" and on their side facing away from the clippings outlet gap "SP" 1 a one as switching cams for the actuation of the Actuating stop switch "E" Rib "S" or the like. Above is to be understood as that the directly on the plug connections 3 and 4 subsequent joint point "B", in that shown in Figure 2 Representation, located above the connection points 3 and 4.

In spezieller baulicher Ausgestaltung ist dabei vorgesehen, dass die steckbaren Anschlussstellen als kraftschlüssige Schnappverbindungen 3 und formschlüssige Führungszapfen 4 an der, dem Gehäuse zugewandten, Schaltklappenunterkante 1 b sitzen, die Gehäuseunterseite 2a dazu korrespondierende Aussparungen 5 und 6 aufweist und die, bezüglich der Darstellung in Fig. 2 betrachtet, unmittelbar oberhalb der Steckverbindungen 3, 4 und 5, 6 sich parallel zur Gehäuseunterseite 2a erstreckende federnde Gelenkstelle als sog. Biegenut "B" in die Materialdicke "D" eingebracht ist. Die Rückstellkraft der Schaltklappe 1 wird also über die Elastizität und Geometrie des betreffenden Werkstoffes erzielt, so dass weder zusätzliche Rückstellelemente noch Lagerungen oder Stellhebel samt störanfälligen Übertragungsgestängen für die neue Lösung erforderlich sind.In a special structural design, it is provided that the pluggable connection points as non-positive Snap connections 3 and positive guide pins 4 sit on the bottom of the switch flap facing the housing 1 b Housing underside 2a corresponding thereto Has recesses 5 and 6 and which, with respect to the Representation viewed in Fig. 2, immediately above the Plug connections 3, 4 and 5, 6 parallel to Housing underside 2a extending resilient hinge point as so-called bending groove "B" is introduced into the material thickness "D". The Restoring force of the switching flap 1 is thus about the elasticity and geometry of the material in question, so that neither additional reset elements nor bearings or Control lever including transmission linkage prone to failure are required for the new solution.

In spezieller und vorteilhafter baulicher Ausgestaltung ist weiterhin vorgesehen, dass der Schaltnocken "S" durch eine Aussparung 2b an der Gehäuseunterseite 2a auf den Endschalter "E" wirkt und die Bewegung der Schaltklappe 1 in Richtung auf den Endschalter "E" durch eine sich an die Oberfläche 2c der Gehäuseunterseite 2a in ihrer Endstellung anliegende weitere Anschlagrippe "R" begrenzt ist; hierdurch entfällt unnötiger Druck auf den Endschalter "E" und seine Befestigungselemente.In a special and advantageous structural design further provided that the switching cam "S" by a Recess 2b on the bottom of the housing 2a on the Limit switch "E" acts and the movement of the switching flap 1 in Direction to the limit switch "E" by turning to the Surface 2c of the bottom of the housing 2a in its end position adjacent stop rib "R" is limited; hereby there is no unnecessary pressure on the limit switch "E" and its Fasteners.

Weiterhin ist es bei der neuen Schaltklappe 1 noch sinnvoll, dass Schaltnocken "S" und begrenzende Anschlagrippe "R" auf der gleichen Seite der Oberfläche 1a der Schaltklappe 1 sowie, von der die Anschlusselemente 3 und 4 aufweisenden Schaltklappenkante aus gesehen (S.Fig. 3 bis 5), auf der anderen Seite der Biegenut "B" sitzen, was eine rationelle und somit preisgünstige Herstellung der Schaltklappe 1 samt Biegenut "B", Schaltnocken "S", Anschlagrippe "R" und steckbaren Anschlusselementen, Schnappverbinder 3 und Führungszapfen 4, als einstückiges Kunststoffformteil ohne mechanische Nachbearbeitung ermöglicht. Furthermore, with the new switching flap 1, it still makes sense that switching cams "S" and limiting stop rib "R" on the same side of the surface 1a of the switching flap 1 and of which have the connection elements 3 and 4 Switch flap edge seen (S.Fig. 3 to 5) on the other side of Bending groove "B" sit, which is a rational and therefore inexpensive Manufacture of the switching flap 1 together with the bending groove "B", Switch cams "S", stop rib "R" and pluggable Connection elements, snap connectors 3 and Guide pin 4, as a one-piece molded plastic part without mechanical post-processing enables.

Die zeichnerisch weiterhin noch dargestellten Zentrierzapfen 7 und 8 an dem Gehäuseseiten 2d dienen samt dem Gehäuseflansch 2e zum Festsetzen des Schneidwerksgehäuses 2 auf einem entsprechend ausgebildeten, hier nicht dargestellten Schnittgutsammelbehälter. The still shown in the drawing Centering pins 7 and 8 on the housing sides 2d serve together the housing flange 2e for fixing the cutter housing 2 on a suitably trained, clippings not shown here.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Schaltklappeswitching flap
1a1a
Oberfläche (auf der dem Schnittgutaustrittsspalt "SP" abgewandten Seite)Surface (on the clippings exit gap "SP" side facing away)
1b1b
Unterkantelower edge
22
SchneidwerksgehäuseCutter housing
2a2a
GehäuseunterseiteHousing bottom
2a'2a '
GehäuseoberseiteHousing top
2b2 B
Aussparungrecess
2c2c
Oberfläche der GehäuseunterseiteSurface of the bottom of the housing
2d2d
Gehäuseseitecase side
2e2e
Gehäuseflanschhousing flange
33
Schnappverbindersnap connector
44
Führungszapfenspigot
55
Aussparung für SchnappverbinderCut-out for snap connectors
66
Aussparung für FührungszapfenCutout for guide pin
77
Zentrierzapfenspigot
88th
Zentrierzapfenspigot
BB
Biegenutbending
DD
Materialdicke der SchaltklappeMaterial thickness of the switching flap
Ee
Endschalterlimit switch
LL
Länge der SchaltklappeLength of the switch flap
P1 P 1
Einsteckrichtung der KlappeFlap insertion direction
P2 P 2
Schwenkrichtung der KlappeSwing direction of the flap
RR
Anschlagrippestop rib
SS
Schaltnockenswitching cams
SPSP
SchnittgutaustrittsspaltSchnittgutaustrittsspalt

Claims (5)

  1. Switching flap for stopping the drive of the cutting mechanism of document shredders or like apparatus, wherein the respective cutting mechanism is accommodated in a cutting mechanism housing, which can be placed on a cut material collecting container, with a housing underside and the switching flap can be arranged at the housing underside in the region laterally of the cut material outlet gap, characterised in that the switching flap (1) can be plugged into the housing underside (2a) by way of corresponding connection points (3, 4 and 5,6), a resilient joint location (B) is provided at the switching flap (1) directly adjacent to the connection points (3, 4) to extend over its entire length (L) and is formed as a so-termed bending groove (B) in the material thickness (D) and the switching flap (1) has on its side (1a) remote from the cut material outlet gap (SP) a rib (S) serving as a switching cam for actuation of the limit switch (E) causing stopping of the drive.
  2. Cutting mechanism housing (2) of a document shredder, the mechanism being placeable by its underside (2a) on a cut material collecting container of the same, with a switching flap according to claim 1, characterised in that the pluggable connecting points are seated as force-locking snap connections (3) and shape-locking guide pins (4) at the switching flap edge (1 b) facing the housing underside (2a) and the housing underside (2a) for that purpose has corresponding cut-outs (5 and 6).
  3. Cutting mechanism housing (2) of a document shredder according to claim 2, characterised in that the switching cam (S) acts on the limit switch (E) via a cut-out (2b) at the housing underside (2a) and the movement of the switching flap (1) in the direction of the limit switch (E) is limited by a further rib (R) bearing in its end setting against the surface (2c) of the housing underside (2a).
  4. Switching flap according to claim 1, characterised in that the switching cam (S) and limiting rib (R) are seated on the same surface (1a) of the switching flap (1) as well as on the side of the bending groove (B) remote from the switching flap edge (1 b).
  5. Switching flap according to claim 4, characterised by construction of the switching flap (1) inclusive of bending groove (B), switching cam (S), rib (R) and pluggable connection points (3 and 4) as an integral synthetic moulded part without mechanical processing.
EP97117388A 1996-10-11 1997-10-08 Switching flap for deactivating the cutting device of a document shredder an the like apparatus Expired - Lifetime EP0836886B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19641934A DE19641934C2 (en) 1996-10-11 1996-10-11 Switch flap for stopping the cutting unit of document shredders and. devices
DE19641934 1996-10-11

Publications (2)

Publication Number Publication Date
EP0836886A1 EP0836886A1 (en) 1998-04-22
EP0836886B1 true EP0836886B1 (en) 2003-10-08

Family

ID=7808453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117388A Expired - Lifetime EP0836886B1 (en) 1996-10-11 1997-10-08 Switching flap for deactivating the cutting device of a document shredder an the like apparatus

Country Status (3)

Country Link
US (1) US5969310A (en)
EP (1) EP0836886B1 (en)
DE (2) DE19641934C2 (en)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
US7025293B2 (en) * 2004-04-21 2006-04-11 Fellows Inc. Shredder with pivoting housing for the shredder mechanism
US7195185B2 (en) * 2004-11-02 2007-03-27 Fellowes, Inc. Shredder with separate waste opening
TWM314070U (en) * 2006-11-30 2007-06-21 Michilin Prosperity Co Ltd Safety plate for paper feeding of movable shredder machine
CN201002037Y (en) * 2006-12-28 2008-01-09 世庆实业股份有限公司 Shredder paper entrance touch-stop safety device
CN201002039Y (en) * 2007-01-11 2008-01-09 世庆实业股份有限公司 Shredder movable paper entrance blind flange
US7757985B2 (en) * 2007-06-27 2010-07-20 Aurora Office Equipment Co., Ltd. Safety shredder
CA2640979C (en) 2007-10-30 2011-03-29 Liangneng Chen Safety shredder
US7648089B2 (en) * 2007-11-28 2010-01-19 Michilin Prosperity Co., Ltd. Shredder safety interlock switch activation tab
US8028942B2 (en) 2008-08-01 2011-10-04 Fellowes, Inc. Bin full detection with light intensity sensing
CN101623664B (en) * 2009-07-31 2013-03-20 上海震旦办公设备有限公司 Safety protection device of paper inlet of paper shredder
DE102012100681B4 (en) 2012-01-27 2022-09-01 Hermann Schwelling Document shredder with turbo function
US8967510B2 (en) 2012-09-27 2015-03-03 Aurora Office Equipment Co., Ltd. Safety shredder
US9643190B2 (en) 2013-03-26 2017-05-09 Aurora Office Equipment Co., Ltd. Shanghai Safety shredder with bin-full device and time delay
US10639642B2 (en) * 2015-03-19 2020-05-05 Aurora Office Equipment Co., Ltd. Shanghai Shredder jam clear apparatus

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US3632918A (en) * 1969-08-25 1972-01-04 Dickey John Corp Sensing switch construction
US3867591A (en) * 1974-01-16 1975-02-18 Whirlpool Co One piece switch holder and foot operated hinge actuator for vacuum cleaner switch
JPS57152725U (en) * 1981-03-20 1982-09-25
DE3312991C2 (en) * 1983-04-12 1987-04-23 Feinwerktechnik Schleicher & Co, 7778 Markdorf Device for shredding materials such as documents etc.
DE8526418U1 (en) * 1985-09-16 1986-02-13 Robert Stahlschmidt RST Motorenwerk GmbH, 4800 Bielefeld Device with rotating tool
DE3706623A1 (en) * 1987-03-02 1988-09-15 Hermann Schwelling METHOD FOR THE AUTOMATIC DRIVE SHUTDOWN OF THE CUTTING DEVICE OF A PAPER DESTRUCTOR WHEN FILLED WASTE COLLECTION BAG AND DEVICE FOR IMPLEMENTING THE PROCESS
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Also Published As

Publication number Publication date
DE59710829D1 (en) 2003-11-13
DE19641934C2 (en) 1999-06-24
EP0836886A1 (en) 1998-04-22
DE19641934A1 (en) 1998-04-16
US5969310A (en) 1999-10-19

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