Patents Assigned to BDT Buro-und Datentechnik, GmbH & Co. KG
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Patent number: 6983469Abstract: A modular data storage system is disclosed. The data storage system comprises at least one module housing. Each housing has a front chamber and a rear chamber running parallel to a front side of the module housing and extending across a width of the module housing. An open shaft is arranged between the front chamber and the rear chamber. The shaft extends across the width of the module housing. The front chamber is adapted to receive at least two storage modules adapted to hold storage media, and the rear chamber is adapted to receive at least one function module for the data storage media. At least one transfer unit is arranged in the shaft. The transfer unit has a vertically traveling elevator and a carriage adapted to travel on the elevator between the front chamber and the rear chamber. The carriage has a grip mechanism for the data storage media.Type: GrantFiled: February 20, 2002Date of Patent: January 3, 2006Assignee: BDT Buro-und Datentechnik GmbH & CO KGInventor: Friedhelm Steinhilber
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Patent number: 6663097Abstract: A device for feeding sheets of a recording medium from a stack to an office machine, having movable elements which are moved by way of driven continuously rotating traction devices in the feed direction over the respective top sheet of the stack. The movable elements are supported by guide skids and are in contact with the top sheet under pressure to separate the top sheet from the second sheet of the stack beneath it and displace the top sheet with respect to the second sheet in the direction of feed. The movable elements each have at least one roller arranged across the direction of feed, mounted so it can rotate freely on a traction device.Type: GrantFiled: March 28, 2001Date of Patent: December 16, 2003Assignee: BDT Buro-und Datentechnik GmbH & Co KGInventor: Ludwig Bantle
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Patent number: 6607194Abstract: An arrangement to hold a top sheet of a stack of sheets that are ejected by an office machine and deposited on the stack is disclosed. The arrangement comprises a holding element and a lifting device adapted to vertically move the holding element. A tension spring is adapted to be tensioned when the holding element is placed on the stack, thereby generating a placement force. The lifting device may comprise an upper part where the holding element is arranged and a lower part. The lower part is vertically driven, and the upper part and the lower part being connected by the tension spring. The holding element may be a holding flap that is pivotally positioned at the lifting device and is adapted to pivot between a swung out position that projects over a stack of sheets and a swung in position into the lifting device. A joint drive may effect the lifting movement of the lifting device and the swinging movement of the holding flap, the holding flap being driven by a sliding clutch.Type: GrantFiled: February 26, 2002Date of Patent: August 19, 2003Assignee: BDT Buro-Und Datentechnik GmbH & Co., KGInventors: Siegfried Moeller, Klaus Paulat
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Publication number: 20020181341Abstract: A modular data storage system is disclosed. The data storage system comprises at least one module housing. Each housing has a front chamber and a rear chamber running parallel to a front side of the module housing and extending across a width of the module housing. An open shaft is arranged between the front chamber and the rear chamber. The shaft extends across the width of the module housing. The front chamber is adapted to receive at least two storage modules adapted to hold storage media, and the rear chamber is adapted to receive at least one function module for the data storage media. At least one transfer unit is arranged in the shaft. The transfer unit has a vertically traveling elevator and a carriage adapted to travel on the elevator between the front chamber and the rear chamber. The carriage has a grip mechanism for the data storage media.Type: ApplicationFiled: February 20, 2002Publication date: December 5, 2002Applicant: BDT Buro-und DATENTECHNIK GmbH & Co KGInventor: Friedhelm Steinhilber
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Publication number: 20020158406Abstract: An arrangement to hold a top sheet of a stack of sheets that are ejected by an office machine and deposited on the stack is disclosed. The arrangement comprises a holding element and a lifting device adapted to vertically move the holding element. A tension spring is adapted to be tensioned when the holding element is placed on the stack, thereby generating a placement force. The lifting device may comprise an upper part where the holding element is arranged and a lower part. The lower part is vertically driven, and the upper part and the lower part being connected by the tension spring. The holding element may be a holding flap that is pivotally positioned at the lifting device and is adapted to pivot between a swung out position that projects over a stack of sheets and a swung in position into the lifting device. A joint drive may effect the lifting movement of the lifting device and the swinging movement of the holding flap, the holding flap being driven by a sliding clutch.Type: ApplicationFiled: February 26, 2002Publication date: October 31, 2002Applicant: BDT Buro- und Datentechnik GmbH & Co. KGInventors: Siegfried Moeller, Klaus Paulat
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Publication number: 20020149870Abstract: An automatic library for cartridges of a data storage tape comprises a magazine with a plurality of receivers for holding the cartridges. The magazine revolves on a closed path of revolution about at least one drive. The path of revolution of the magazine is non-circular and may have the shape of a rectangle with rounded-off corners. Thus, a low installation width of the library is provided.Type: ApplicationFiled: November 8, 2001Publication date: October 17, 2002Applicant: BDT Buro und Datentechnik GmbH & Co. KGInventor: Friedhelm Steinhilber
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Publication number: 20020118482Abstract: A library for cartridges of a data storage tape comprises a drive with a cartridge pocket and a magazine revolving about the drive with a plurality of receivers for the cartridges. The receivers are positionable in front of a cartridge pocket in order to change a cartridge between the receiver and the cartridge pocket. Cartridges can be inserted or removed through a port of the housing of the library into the receiver of the magazine. The cartridge pocket, a receiver positioned in front of the cartridge pocket, and the port of the housing may be linearly aligned such that cartridges can also be inserted through the port directly into the cartridge pocket or can be removed directly from the cartridge pocket through the port.Type: ApplicationFiled: November 8, 2001Publication date: August 29, 2002Applicant: BDT Buro und Datentechnik GmbH & Co. KGInventor: Friedhelm Steinhilber
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Publication number: 20020085308Abstract: A system for transferring a cartridge comprises at least two opposing bars, each bar adapted to slide in a longitudinal direction between an open position and a closed position; and at least two grippers, each gripper attached to an end of one of the bars and adapted to engage a cartridge when the bars are in the closed position. Each of the bars is further from a center point when in the open position than in the closed position. The bars and the grippers are adapted to move in a transverse direction in order to transfer the cartridge in the transverse direction.Type: ApplicationFiled: November 8, 2001Publication date: July 4, 2002Applicant: BDT Buro und Datentechnik Gmbh & Co. KGInventor: Klaus Paulat
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Publication number: 20020080513Abstract: An automatic library for cartridges of data storage tapes comprises a drive for cartridges having the form of a flat right parallelepiped having a flat side and a magazine. The drive has a cartridge pocket adapted to receive the cartridges. The magazine comprises one or more receivers for the cartridges. The receivers are adapted to revolve on a closed path of revolution about the drive, the path of revolution being substantially in a plane. The cartridge pocket of the drive and the receivers of the magazine are disposed such that the magazine is positionable with one of the receivers being aligned with the cartridge pocket along an insertion axis for transfer of a cartridge.Type: ApplicationFiled: November 8, 2001Publication date: June 27, 2002Applicant: BDT Buro und Datentechnik GmbH & Co. KGInventor: Friedhelm Steinhilber
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Patent number: 6318715Abstract: A device for separating sheets (10) of a recording medium stored in a horizontally disposed stack includes an advance roller (16) resting on the stack and following the decreasing height of the stack. The advance roller (16) is drivable in order to acquire the topmost sheet (10.1) of the stack under frictional closure and to slide it for separation with its leading edge up on an obliquity (14). In order to be able to separate sheets (10) of different stiffness, the advance roller (16), while it is driven on the topmost sheet (10.1), drifts from the obliquity (14) until the leading edge of the sheet (10.1) runs up on the obliquity (14). The advance roller (16) is movable vertically. The counter force acting during the driving of the advance roller (16) is additionally supported in a rocker in order to increase the contact pressure against the topmost sheet (10.1) in case of the sheets of great stiffness.Type: GrantFiled: June 1, 2000Date of Patent: November 20, 2001Assignee: BDT Buro-und Datentechnik GmbH & Co. KGInventors: Heinz Froechte, Ludwig Bantle
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Patent number: 6250628Abstract: Sheets are output by an office machine in collected form. The sheets are initially supported on their side edges by rest bars and support levers. The rest bars support the sheets on their side edges while the support levers support the sheets only in their central region. If the rest bars are moved apart, first the front and the rear end of the sheets are released while the central region is still supported by the support levers. Only upon further movement outwardly are the sheets released by the support levers.Type: GrantFiled: September 24, 1999Date of Patent: June 26, 2001Assignee: BDT Buro-und Datentechnik GmbH & Co. KGInventor: Paulat Klaus
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Patent number: 6244591Abstract: A shunt is described for reversing the direction of conveyance of a document or the like. The document is accepted by a front-end roller and supplied to a reversing roller. As soon as the trailing rear edge of the document has left the front-end roller, the direction of rotation of the reversing roller is reversed and this guides the document, with the rear edge leading, to an output roller which is disposed offset in height relative to the front-end roller and outputs the document in the opposite direction.Type: GrantFiled: September 24, 1999Date of Patent: June 12, 2001Assignee: BDT Buro-und Datentechnik GmbH & Co. KG.Inventor: Klaus Paulat
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Patent number: 6169380Abstract: The task of the invention comprises reliably acquiring documents from an output device with variable output speed without impermissible tractive forces being exerted onto the documents. For this purpose the rotational speed of the transport system of the acquisition unit is determined under no-load condition and the torque of the drive is reduced, for example by current imitation, until the transport rate of the acquisition unit is just above the maximum occurring transport rate of the output device. The torque value thus determined, which represents the torque requirement for overcoming the friction of the system, is stored and set as the nominal value during the document acquisition. As a drive motor can be used DC current motors as well as also load-controlled electronically commutated motors.Type: GrantFiled: October 22, 1998Date of Patent: January 2, 2001Assignee: BDT Buro-und Datentechnik, GmbH & Co. KGInventors: Markus Gleichauf, Elmar Speck, Andreas Stadler
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Patent number: 6127796Abstract: For driving a self-timing stepping motor which can be decelerated by an external load, a driving device presets a target step frequency and the motor is started with this target step frequency. The actual rotational speed of the stepping motor is determined and, as a function of this determined rotational speed, the target step frequency is changed when the rotational speed falls below a preset actual rotational speed of the stepping motor for a preset time interval.Type: GrantFiled: July 30, 1997Date of Patent: October 3, 2000Assignee: BDT Buro-und Datentechnik GmbH & Co. KGInventor: Siegfried Moeller
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Patent number: 6102392Abstract: An arrangement for the control of movement of documents to an output device such as a printer or a copier in such a manner that the document draw-in rate automatically matches the document output rate. A document intake channel forces the incoming document into a curvature transversely to the direction of the transport of the documents, whereby the degree of curvature of the documents is a function of any tensile force on the documents. A sensor includes an analog and continuous output signal to affect a continuous change of the driving frequency for a motor causing the movement of the documents as a function of the actuation of the sensor.Type: GrantFiled: August 4, 1998Date of Patent: August 15, 2000Assignee: BDT Buro - und Datentechnik, GmbH & Co. KGInventors: Markus Gleichauf, Siegfried Moeller, Speck Elmar