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EP0891288A1 - Process and device for preventing double extraction - Google Patents

Process and device for preventing double extraction

Info

Publication number
EP0891288A1
EP0891288A1 EP97908268A EP97908268A EP0891288A1 EP 0891288 A1 EP0891288 A1 EP 0891288A1 EP 97908268 A EP97908268 A EP 97908268A EP 97908268 A EP97908268 A EP 97908268A EP 0891288 A1 EP0891288 A1 EP 0891288A1
Authority
EP
European Patent Office
Prior art keywords
suction pump
objects
flat objects
switched
scraper
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.)
Granted
Application number
EP97908268A
Other languages
German (de)
French (fr)
Other versions
EP0891288B1 (en
Inventor
Werner Frank
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0891288A1 publication Critical patent/EP0891288A1/en
Application granted granted Critical
Publication of EP0891288B1 publication Critical patent/EP0891288B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/5215—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned under articles separated from the top of the pile
    • B65H3/5223—Retainers of the pad-type, e.g. friction pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1916—Envelopes and articles of mail

Definitions

  • the present invention relates to an apparatus and a method according to the preambles of claims 1 and 5
  • the present invention is therefore based on the object of providing a device and a method for preventing double deductions in a separating device for flat objects, in which a variable retention force is only effective for a limited time to the extent necessary and a constant friction force, if any, only relatively is chosen small
  • FIG. 1 shows a cross section through an arrangement according to the invention according to claim 3
  • FIG. 2 shows a chronological sequence of the withdrawal process
  • Scraper 1 is carried by a guide arm 1 1, which in turn is pivotally mounted about an axle pin 10.
  • the connection between the guide arm 11 and the scraper 1 takes place by means of an axis 12 arranged in the vicinity of the outlet area of the scraper and by a mechanism which is shown in more detail in DE-PS 2704045.
  • the actuating force for the scraper is generated by the interaction of the first compression spring 6 acting on the guide arm 11 and the second compression spring 9 acting in the vicinity of the inlet region of the scraper between the scraper and the guide arm 11.
  • the pressing force / actuating force of the wipers and / or their friction coefficients can be kept small, so that the load on the letters during the deduction is low and even sensitive mail items can be separated safely and gently.
  • the sequence of the withdrawal process is shown in more detail.
  • the AB deduction tape starts and pulls off the attached letter.
  • a valve releases the line to the suction pump.
  • the peeled letter or a double peeled letter closes the openings in the working surface of the wipers, and a negative pressure builds up, which creates a holding force.
  • a correspondingly directed force also arises at the point of application of the second spring force.
  • the torques are largely compensated for, so that the wiper does not perform a tilting movement when the suction pump is switched on.
  • the take-off belt is stopped. If the letter has left the area of the wipers - item b, the connection to the suction pump is interrupted until there is a fixed distance between the letter removed and the subsequent letter, which may have been held back by the wiper.
  • the take-off belt is switched on again, the connection to the suction pump is restored - item c, and the process repeats itself, ie, in item d the removed letter has reached the transfer rollers and the take-off belt is stopped, in item e the Letters leave the area of the scrapers and the connection to the suction pump is interrupted, and in position f the defined gap between the letters is reached, the pull-off belt is started again and the connection to the suction pump is established

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

The invention relates to a process and a device for preventing double extraction in a sorting device for flat objects like letters, cards, documents and the like, in which there are on one side of the conveyor at least one extractor belt running in the conveying direction and taking the flat objects with it by friction and on the other side at least one slide-shaped remover (1) to retain excess objects removed, which is fitted to move in relation to the plane of the flat objects by means of a guide arm (11) and pressed against said objects by a controlling torque. According to the invention, in order to reduce the pressure of the objects during the extraction process, channels (2) are made in the remover extending into the working surface in contact with the flat objects. Said channels are connected to a suction pump. The underpressure generated by the suction pump is adjustable and can be applied and cut off. In a corresponding process the suction pump is operative only when the extraction system is running.

Description

Vorrichtung und Verfahren zum Verhindern von DoppelabzuqenDevice and method for preventing double pulling

Beschreibungdescription

Die vorliegende Erfindung betrifft eine Vorrichtung und ein Verfahren nach den Oberbegriffen der Patentansprüche 1 und 5The present invention relates to an apparatus and a method according to the preambles of claims 1 and 5

Bei der Vereinzelung insbesondere von Briefsendungen von einem Stapel sind Doppelabzuge zu vermeiden Dies wird bei bekannten Losungen, wie in der DE-PS 2704045 beschrieben, mithilfe von kufenformigen Abstreifern erreicht, die gegenüber der Ebene der flachen Gegenstande beweglich gelagert sind und durch eine Stellkraft gegen die flachen Gegenstande gedruckt werden Die Oberflache dieser Abstreifer, die die flachen Gegenstande berührt, besteht aus einem Reibbelag Die Stellkraft erzeugt über den Reibkoeffizienten des Reibbelages auf die doppelt abgezogenen Gegenstande eine Ruckhaltekraft, so daß nur die Gegenstande abgezogen werden, die am sich bewegenden Forderband anliegen Eine spezielle Anordnung gemäß DE-PS 2704045 sorgt dafür, daß auch bei unterschiedlichen Briefen eine genügend große Stellkraft zur Verfugung steht Der Nachteil dieser Losungen besteht dann, daß die Ruckhaltekraft am Abstreifer aus¬ schließlich durch die Reibkraft erzeugt wird Dies wiederum hat zur Folge, daß wahrend des Abziehvorganges auf die flachen Gegenstande wegen der standig vorhandenen Reibkraft eine hohe Beanspruchung ausgeübt wird, die zur Beschädigung fuhren kannWhen separating mail items from a stack in particular, double deductions are to be avoided.This is achieved in known solutions, as described in DE-PS 2704045, using skid-shaped scrapers which are movably mounted in relation to the plane of the flat objects and by an actuating force against the Flat objects are printed The surface of these wipers, which touches the flat objects, consists of a friction lining.The actuating force creates a retention force on the double-peeled objects via the coefficient of friction of the friction lining, so that only the objects that are in contact with the moving conveyor belt are pulled off special arrangement according to DE-PS 2704045 ensures that a sufficiently large actuating force is available even with different letters. The disadvantage of these solutions is that the retaining force on the wiper is generated exclusively by the frictional force. that during the peeling process on the flat objects due to the constant friction force, a high load is exerted, which can lead to damage

Der vorliegenden Erfindung hegt daher die Aufgabe zugrunde eine Vorrichtung und ein Verfahren zur Verhinderung von Doppelabzugen bei einer Vereinzelungsvorrichtung für flache Gegenstande zu schaffen, bei der eine variable Ruckhaltekraft nur zeitlich begrenzt im notwendigen Umfang wirksam ist und eine standig wirkende Reibkraft, wenn überhaupt, nur relativ klein gewählt wirdThe present invention is therefore based on the object of providing a device and a method for preventing double deductions in a separating device for flat objects, in which a variable retention force is only effective for a limited time to the extent necessary and a constant friction force, if any, only relatively is chosen small

Diese Aufgabe wird durch die Merkmale der Patentansprüche 1 und 5 gelost Werden die Öffnungen in der Arbeitsfläche der Abstreifer durch die abzuziehenden Ge¬ genstande bedeckt, so baut sich bei eingeschalteter Saugpumpe ein Unterdruck auf, der die Gegenstande am Abstreifer festhalt Die Festhaltekraft ist über die einstellbare Saugleistung der Pumpe in einem größeren Bereich veränderbar Da die Saugpumpe ein- und ausschaltbar ist und der Unterdruck im wesentlichen nur bei laufenden Abzugsbandern der Veremzelungsvoπchtung anliegt, ist es möglich, die Ruckhaltekraft von ihrer Große und im zeitlichen Umfang so in den Abzugsvorgang einzubeziehen, daß Doppelabzuge bei weitgehender Schonung der Gegenstande vermieden werden Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteranspruchen angegeben Aufgrund der Bewegungen des Abstreifersystems ist es vorteilhaft, gemäß Patentanspruch 2 mindestens einen Teil der Verbindung zwischen den Kanälen und der Saugpumpe elastisch auszufuhrenThis object is achieved by the features of claims 1 and 5. If the openings in the working surface of the wipers are covered by the objects to be removed, a vacuum builds up when the suction pump is switched on, which holds the objects to the wiper. The holding force is adjustable Suction power of the pump can be changed over a wide range Since the suction pump can be switched on and off and the negative pressure is essentially only present when the extraction belts of the Veremzelungsvoπcht are running, it is possible to include the retention force of its size and in time in the extraction process in such a way that double deductions can be avoided if the objects are largely protected Advantageous refinements of the invention are specified in the subclaims. Due to the movements of the wiper system, it is advantageous, according to claim 2, to carry out at least part of the connection between the channels and the suction pump elastically

In der vorteilhaften Ausbildung nach Patentanspruch 3 wird zur Unterstützung des Ruckhaltevorganges des eventuell zweiten abgezogenen Gegenstandes Luft zwischen beide Gegenstande geblasen, so daß die Mitnahmekrafte zwischen beiden Gegenstanden vermindert werden Bei der Abstreiferanordnung nach Patentanspruch 4, bei der die Verbindung zwischen Fuhrungsarm und Abstreifer durch eine in der Nahe des Auslaufbereiches des Abstreifers angeordnete, zum Abzugsband parallele Achse erfolgt und bei der die Stellkraft durch eine erste am Fuhrungsarm angreifende Federkraft sowie durch eine zweite Federkraft gebildet wird, die in der Nahe des Einlauf bereiches am Abstreifer angreift, ist an die Saugpumpe zusatzlich zum Anschluß für die Kanäle eine weitere Leitung angeschlossen, die über ein elastisches Dichtelement an eine ebene Flache am Angriffspunkt der zweiten Federkraft jedes Abstreifers gefuhrt ist Dadurch wird ein Abkippen des Abstreifers wahrend des Ruckhaltens eines Gegenstandes weitgehend vermiedenIn the advantageous embodiment according to claim 3, air is blown between the two objects to support the retention process of the possibly second withdrawn object, so that the entraining forces between the two objects are reduced. In the wiper arrangement according to claim 4, in which the connection between the guide arm and the wiper by a the near the outlet area of the scraper, arranged parallel to the take-off belt, and in which the actuating force is formed by a first spring force acting on the guide arm and by a second spring force acting on the scraper near the inlet area, is additionally to the suction pump Connection for the channels connected another line, which is guided via an elastic sealing element to a flat surface at the point of application of the second spring force of each wiper. This causes the wiper to tip over while an object is being held back avoided

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden naher erläutertAn embodiment of the invention is shown in the drawing and is explained in more detail below

Dabei zeigen Fig 1 einen Querschnitt durch eine erfindungsgemaße Anordnung gemäß Patentanspruch 3 Fig 2 einen zeitlichen Ablauf des Abzugsvorganges1 shows a cross section through an arrangement according to the invention according to claim 3, FIG. 2 shows a chronological sequence of the withdrawal process

In der Fig 1 sind die im kufenformigen Abstreifer 1 befindlichen und in der Arbeitsflache 3 mundenden Kanäle 2 dargestellt Diese Kanäle 2 sind über eine Verbindungsleitung 4 und einen Faltenbalg 5, in dem eine erste Druckfeder 6 angeordnet ist, an eine Saugpumpe angeschlossen An die Saugpumpe ist eine weitere Leitung 7 angeschlossen, die über ein elastisches Dichtelement 8, in welchem sich eine zweite Druckfeder 9 befindet, auf eine ebene Flache des Abstreifers 1 mundet Mehrere nebenemanderhegende Abzugsbander AB ziehen den obersten Brief des zu vereinzelnden Briefstapels ab und transportieren ihn zu zwei aneinanderiiegenden angetriebenen Förderbändern, die die Briefe übernehmen und weitertransportieren Zuviel abgezogene Briefe werden durch die Abstreifer 1 , die sich dem Zwischenraum zwischen jeweils zwei Abzugsbandern AB gegenüber befinden, zurückgehalten Jeder Abstreifer 1 wird von einem Führungsarm 1 1 getragen, der seinerseits um einen Achsbolzen 10 schwenkbar gelagert ist. Die Verbindung zwischen dem Führungsarm 11 und dem Abstreifer 1 erfolgt durch eine in der Nähe des Auslaufbereiches des Abstreifers angeordnete Achse 12 sowie eine in der DE-PS 2704045 näher dargestellte Mechanik. Die Stellkraft für den Abstreifer wird durch das Zusammenwirken der am Führungsarm 11 angreifenden ersten Druckfeder 6 und der in der Nähe des Einlaufbereiches des Abstreifers zwischen diesem und dem Führungsarm 11 wirksamen zweiten Druckfeder 9 erzeugt. Durch die Erzeugung der Rückhaltekraft über den von der Saugpumpe erzeugten Unterdruck können die Andruckkraft/ Stellkraft der Abstreifer und/ oder deren Reibungskoeffizienten klein gehalten werden, so daß die Belastung der Briefe beim Abzug gering ist und auch empfindliche Sendungen sicher und schonend vereinzelt werden können. tn der Fig. 2 wird der Ablauf des Abzugsvorganges näher dargestellt. Zu Beginn des Vorganges startet das Abzugsband AB und zieht den anliegenden Brief ab. Gleichzeitig bzw. gering verzögert gibt ein Ventil die Leitung zur Saugpumpe frei. Der abgezogene Brief bzw. ein doppelt abgezogener Brief verschließt die Öffnungen in der Arbeitsfläche der Abstreifer, und es baut sich ein Unterdruck auf, der eine Festhaltekraft erzeugt. Eine entsprechend gerichtete Kraft entsteht auch am Angriffspunkt der zweiten Federkraft. Bei entsprechender Dimensionierung der Querschnitte werden die Drehmomente weitgehend kompensiert, so daß der Abstreifer bei zugeschalteter Saugpumpe keine Kippbewegung ausführt. Nachdem der am Abzugsband anliegende Brief von den Übernahmerollen des Förderbandes erfaßt wurde - Pos. a, wird das Abzugsband gestoppt. Hat der Brief den Bereich der Abstreifer verlassen - Pos. b, so wird die Verbindung zur Saugpumpe solange unterbrochen, bis zwischen abgezogenem Brief und nachfolgendem Brief, der gegebenenfalls vom Abstreifer zurückgehalten wurde, ein festgelegter Abstand entstanden ist. Dann wird das Abzugsband wieder eingeschaltet, die Verbindung zur Saugpumpe wiederhergestellt - Pos. c, und der Vorgang wiederholt sich, d.h., in der Pos. d hat der abgezogene Brief die übernahmerollen erreicht und das Abzugsband wird gestoppt, in der Pos. e hat der Brief den Bereich der Abstreifer verlassen und die Verbindung zur Saugpumpe wird unterbrochen, und in der Pos. f wird die festgelegte Lücke zwischen den Briefen erreicht, das Abzugsband wird wieder gestartet und die Verbindung zur Saugpumpe hergestellt 1 shows the channels 2 located in the skid-like scraper 1 and mouthing in the working surface 3. These channels 2 are connected to a suction pump via a connecting line 4 and a bellows 5, in which a first compression spring 6 is arranged a further line 7 is connected, which flows via an elastic sealing element 8, in which there is a second compression spring 9, onto a flat surface of the scraper 1. Several deduction belts AB adjacent to one another pull off the uppermost letter of the stack of letters to be separated and transport it to two adjacent driven drives Conveyor belts that take over the letters and transport them too much. Letters that have been removed are held back by the wipers 1, which are located opposite the space between two take-off belts AB Scraper 1 is carried by a guide arm 1 1, which in turn is pivotally mounted about an axle pin 10. The connection between the guide arm 11 and the scraper 1 takes place by means of an axis 12 arranged in the vicinity of the outlet area of the scraper and by a mechanism which is shown in more detail in DE-PS 2704045. The actuating force for the scraper is generated by the interaction of the first compression spring 6 acting on the guide arm 11 and the second compression spring 9 acting in the vicinity of the inlet region of the scraper between the scraper and the guide arm 11. By generating the retaining force via the negative pressure generated by the suction pump, the pressing force / actuating force of the wipers and / or their friction coefficients can be kept small, so that the load on the letters during the deduction is low and even sensitive mail items can be separated safely and gently. 2, the sequence of the withdrawal process is shown in more detail. At the beginning of the process, the AB deduction tape starts and pulls off the attached letter. At the same time or slightly delayed, a valve releases the line to the suction pump. The peeled letter or a double peeled letter closes the openings in the working surface of the wipers, and a negative pressure builds up, which creates a holding force. A correspondingly directed force also arises at the point of application of the second spring force. With appropriate dimensioning of the cross sections, the torques are largely compensated for, so that the wiper does not perform a tilting movement when the suction pump is switched on. After the letter lying on the take-off belt has been gripped by the transfer rollers of the conveyor belt - item a, the take-off belt is stopped. If the letter has left the area of the wipers - item b, the connection to the suction pump is interrupted until there is a fixed distance between the letter removed and the subsequent letter, which may have been held back by the wiper. Then the take-off belt is switched on again, the connection to the suction pump is restored - item c, and the process repeats itself, ie, in item d the removed letter has reached the transfer rollers and the take-off belt is stopped, in item e the Letters leave the area of the scrapers and the connection to the suction pump is interrupted, and in position f the defined gap between the letters is reached, the pull-off belt is started again and the connection to the suction pump is established

Claims

PatentansprücheClaims 1 Vorrichtung zum Verhindern von Doppelabzugen bei einer Vereinzelungsvorrichtung für flache Gegenstande, wie Briefe, Karten, Belege und dergleichen, bei der auf der einen Seite des Forderweges mindestens ein in Forderπchtung umlaufendes, die flachen Gegenstande durch Reibung mitfuhrendes Abzugsband und auf der anderen Seite zum Zurückhalten von zuviel abgezogenen Gegenstanden mindestens ein kufenförmiger Abstreifer angeordnet ist, welcher mittels eines Fuhrungsarmes gegenüber der Ebene der flachen Gegenstande beweglich gelagert ist und durch eine Stellkraft in Richtung auf diese gedruckt wird, dadurch gekennzeichnet, daß in die kufenformigen Abstreifer (1) bis in die die flachen Gegenstande berührende Arbeitsfläche (3) reichende Kanäle (2) eingebracht sind, die an eine Saugpumpe ange¬ schlossen sind wobei der von der Saugpumpe erzeugte Unterdruck einstellbar sowie ein- und ausschaltbar ist1 device for preventing double deductions in a separating device for flat objects, such as letters, cards, receipts and the like, in which on one side of the conveying path at least one conveyor belt circulating in demand, carrying the flat objects by friction and on the other side for holding back from too much withdrawn objects at least one skid-shaped scraper is arranged, which is movably mounted by means of a guide arm relative to the plane of the flat objects and is pressed by a positioning force in the direction thereof, characterized in that the skid-shaped scraper (1) into which the channels (2) reaching flat objects touching flat objects are introduced, which are connected to a suction pump, the vacuum generated by the suction pump being adjustable and being able to be switched on and off 2 Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß die Verbindung zwischen den Kanälen (2) und der Saugpumpe mindestens teilweise elastisch ist2 Device according to claim 1, characterized in that the connection between the channels (2) and the suction pump is at least partially elastic 3 Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Vereinzelungsvorrichtung eine Blasdruse aufweist, mit der Luft zwischen zwei abgezogene Gegenstande geblasen wird3 Apparatus according to claim 1 and 2, characterized in that the separating device has a blowing nozzle, with which air is blown between two withdrawn objects 4 Vorrichtung nach Anspruch 1 und 2, wobei die Verbindung zwischen Fuhrungsarm (11) und Abstreifer (1) durch eine in der Nahe des Abstreifers angeordnete, zum Abzugsband (AB) parallele Achse erfolgt und die Stellkraft durch eine erste am Fuhrungsarm (11) angreifende Federkraft sowie durch eine zweite Federkraft gebildet wird, die in der Nahe des Einlaufbereiches am Abstreifer (1) angreift, dadurch gekennzeichnet, daß an die Saugpumpe zusätzlich neben dem Anschluß für die Kanäle (2) eine Leitung (7) angeschlossen ist, die über ein elastisches Dichtelement (8) an eine ebene Flache am Angriffspunkt der zweiten Federkraft jedes Abstreifers 1 gefuhrt ist 5. Verfahren zum Verhindern von Doppelabzügen unter Verwendung der Anordnung nach Anspruch 1 , dadurch gekennzeichnet, daß die Saugpumpe zu -bzw. angeschaltet wird, sobald das Abzugsband (AB) beginnt, die flachen Gegenstände zu vereinzeln, die Saugpumpe aus -bzw. abgeschaltet wird, sobald das Abzugsband (AB) stoppt und die Hinterkante des abgezogenen Gegenstandes die nachfolgenden Übernahmerollen (Ü) erreicht hat und das Abzugsband (AB) wieder eingeschaltet sowie die Saugpumpe wieder zu -bzw. angeschaltet wird, sobald zwischen dem abgezogenen und dem nächsten abzuziehenden Gegenstand ein bestimmter Abstand erreicht ist. 4 Device according to claim 1 and 2, wherein the connection between the guide arm (11) and the scraper (1) is arranged by an arranged in the vicinity of the scraper, parallel to the trigger belt (AB) and the actuating force by a first on the guide arm (11) engaging Spring force and a second spring force is formed, which acts on the scraper (1) in the vicinity of the inlet area, characterized in that a line (7) is connected to the suction pump in addition to the connection for the channels (2) elastic sealing element (8) is guided to a flat surface at the point of application of the second spring force of each wiper 1 5. A method for preventing double deductions using the arrangement according to claim 1, characterized in that the suction pump to -bzw. is switched on, as soon as the take-off belt (AB) begins to separate the flat objects, the suction pump off or. is switched off as soon as the take-off belt (AB) stops and the rear edge of the removed object has reached the subsequent take-over rollers (Ü) and the take-off belt (AB) is switched on again and the suction pump is switched on again. is switched on as soon as a certain distance has been reached between the removed object and the next object to be removed.
EP97908268A 1996-03-29 1997-03-20 Process and device for preventing double extraction Expired - Lifetime EP0891288B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19612566A DE19612566C2 (en) 1996-03-29 1996-03-29 Device for preventing double prints
DE19612566 1996-03-29
PCT/EP1997/001393 WO1997036811A1 (en) 1996-03-29 1997-03-20 Process and device for preventing double extraction

Publications (2)

Publication Number Publication Date
EP0891288A1 true EP0891288A1 (en) 1999-01-20
EP0891288B1 EP0891288B1 (en) 2001-05-23

Family

ID=7789868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97908268A Expired - Lifetime EP0891288B1 (en) 1996-03-29 1997-03-20 Process and device for preventing double extraction

Country Status (3)

Country Link
EP (1) EP0891288B1 (en)
DE (2) DE19612566C2 (en)
WO (1) WO1997036811A1 (en)

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
EP0933318A1 (en) * 1998-01-28 1999-08-04 Grapha-Holding Ag Device for separating flat objects conveyed from a stack
US8557861B2 (en) 2004-09-28 2013-10-15 Mast Therapeutics, Inc. Low oil emulsion compositions for delivering taxoids and other insoluble drugs

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Publication number Priority date Publication date Assignee Title
DE1611390B2 (en) * 1968-03-07 1976-11-25 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm SUCTION AIR WIPER ON A SUCTION AIR SEPARATOR FOR LETTERS AND SIMILAR FLAT CONVEYED GOODS
DE1904705A1 (en) * 1969-01-31 1970-08-06 Licentia Gmbh Suction band separator for flat mail
US4030723A (en) * 1975-12-15 1977-06-21 Pitney-Bowes, Inc. Vacuum-controlled, sheet-material separator and feeder system
DE2704045C3 (en) * 1977-02-01 1979-06-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device to prevent double triggers
FR2674777B1 (en) * 1991-04-03 1993-07-30 Darchis Pierre DEVICE FOR SEPARATING TWO JOINED FLAT OBJECTS, IN PARTICULAR MAIL ENVELOPES IN A POSTAL SORTING INSTALLATION.
US5344133A (en) * 1993-02-25 1994-09-06 Eastman Kodak Company Vacuum belt feeder having a positive air pressure separator and method of using a vacuum belt feeder

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Title
See references of WO9736811A1 *

Also Published As

Publication number Publication date
DE59703600D1 (en) 2001-06-28
EP0891288B1 (en) 2001-05-23
DE19612566A1 (en) 1997-10-02
WO1997036811A1 (en) 1997-10-09
DE19612566C2 (en) 1999-02-25

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