Patents by Inventor Alexander Pietz
Alexander Pietz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7296671Abstract: A drive system for escalators having steps or moving walkways having pallets includes at least one drive motor. A drive chain is driven by the drive motor and is comprised of a plate link chain. The drive chain has such a pitch that a maximum of two links are used for each step or pallet. A mechanism for minimizing a polygon effect which occurs during entry and reversing of the chain at a reversing element includes at least one device for actuating one of the drive motor, the reversing elements or the drive chain with a non-constant rotational speed or velocity.Type: GrantFiled: October 25, 2004Date of Patent: November 20, 2007Assignee: KONE CorporationInventor: Alexander Pietz
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Patent number: 7077257Abstract: A drive system for an escalator or a moving walkway includes at least one drive motor, at least one drive chain and a reversing element for the drive chain. A device for modifying the speed of the drive chain is arranged in at least an entry or exit area of the reversing element.Type: GrantFiled: October 25, 2004Date of Patent: July 18, 2006Assignee: Kone CorporationInventor: Alexander Pietz
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Patent number: 6988608Abstract: A drive system for escalators and pedestrian conveyors having a plurality of steps and pallets, respectively, is provided. The drive system includes at least one driving chain including links and joints connecting the links. The driving chain has a chain pitch such that there are no more than two links per step or pallet and the driving chain is connectable to the plurality of steps or pallets via bolts that are positioned between two joints and provided with a roller. The drive system also includes a plurality of interspaced reversing elements having a number of teeth that correspond to the chain pitch.Type: GrantFiled: June 19, 2003Date of Patent: January 24, 2006Assignee: Kone CorporationInventor: Alexander Pietz
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Publication number: 20050279611Abstract: Each pallet of a moving walkway has a surface which faces a drive belt and which includes a receiving area. A drive belt includes projections spaced at predetermined intervals and directed toward the respective pallets and adapted to obtain a form-fit connection between each projection and a respective one of the receiving areas.Type: ApplicationFiled: August 29, 2005Publication date: December 22, 2005Applicant: KONE CORPORATIONInventors: Marc Ossendorf, Alexander Pietz
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Patent number: 6892874Abstract: A device and method for reducing the polygon effect that occurs during the course of the reversing of a chain in a pedestrian conveyor, escalator, or moving walkway. The device includes a reversing wheel, at least one gear indirectly or directly acting upon the reversing wheel, at least one power supply unit, an electric driving motor coupled to the at least one gear and the at least one power supply unit such that the driving motor can be driven with a non-constant speed, a function generator, a controlling apparatus coupled to the function generator, at least one position sensor for detecting a phase position of the reversing wheel and transmitting the phase position to the controlling apparatus. In such a device, the controlling apparatus transmits a synchronized set speed value to the power supply unit based on the phase position.Type: GrantFiled: October 27, 2003Date of Patent: May 17, 2005Assignee: Kone CorporationInventor: Alexander Pietz
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Patent number: 6874613Abstract: A device for driving step of an escalator or pallets of a moving walkway. A chain wheel has a chain wheel drive shaft and is coupled to the steps or pallets. The device includes a driving gear for being coupled to the chain wheel drive shaft. The device also includes at least one driving motor coupled to the driving gear. The driving gear includes first and second gears coupled to the chain wheel drive shaft. The first and second gears each have variable reference diameters.Type: GrantFiled: December 8, 2003Date of Patent: April 5, 2005Assignee: KONE CorporationInventor: Alexander Pietz
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Publication number: 20050061609Abstract: A drive system for escalators having steps or moving walkways having pallets includes at least one drive motor. A drive chain is driven by the drive motor and is comprised of a plate link chain. The drive chain has such a pitch that a maximum of two links are used for each step or pallet. A mechanism for minimizing a polygon effect which occurs during entry and reversing of the chain at a reversing element includes at least one device for actuating one of the drive motor, the reversing elements or the drive chain with a non-constant rotational speed or velocity.Type: ApplicationFiled: October 25, 2004Publication date: March 24, 2005Applicant: Kone CorporationInventor: Alexander Pietz
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Publication number: 20050061608Abstract: A drive system for an escalator or a moving walkway includes at least one drive motor, at least one drive chain and a reversing element for the drive chain. A device for modifying the speed of the drive chain is arranged in at least an entry or exit area of the reversing element.Type: ApplicationFiled: October 25, 2004Publication date: March 24, 2005Applicant: Kone CorporationInventor: Alexander Pietz
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Patent number: 6848805Abstract: An illumination device for a pedestrian conveyor system having a glass balustrade includes a lighting element arranged on the glass balustrade. An electric strip conductor is printed on the glass balustrade and coupled to the lighting element for supplying power to the lighting element.Type: GrantFiled: March 3, 2004Date of Patent: February 1, 2005Assignee: Kone CorporationInventor: Alexander Pietz
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Publication number: 20050016817Abstract: A device and method for reducing the polygon effect that occurs during the course of the reversing of a chain in a pedestrian conveyor, escalator, or moving walkway. The device includes a reversing wheel, at least one gear indirectly or directly acting upon the reversing wheel, at least one power supply unit, an electric driving motor coupled to the at least one gear and the at least one power supply unit such that the driving motor can be driven with a non-constant speed, a function generator, a controlling apparatus coupled to the function generator, at least one position sensor for detecting a phase position of the reversing wheel and transmitting the phase position to the controlling apparatus. In such a device, the controlling apparatus transmits a synchronized set speed value to the power supply unit based on the phase position.Type: ApplicationFiled: October 27, 2003Publication date: January 27, 2005Applicant: KONE CORPORATIONInventor: Alexander Pietz
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Patent number: 6834754Abstract: A method and arrangement are provided for guiding a drive chain in an area of a reversing chain wheel of a pedestrian conveyor system. The drive chain contains plate link elements, connecting elements connecting the plate link elements in leading and trailing coupling areas of the respective plate link elements, and guide rolls respectively located in the spaces between the coupling areas. The arrangement is such that the drive chain is guided into the chain wheel so that, as seen in the direction of movement, the connecting element in a leading coupling area of one plate link element is guided into an associated reception area of the chain wheel. The guiding roll of that plate link element is then brought into a corresponding cap-shaped indentation of the reversing wheel.Type: GrantFiled: February 4, 2004Date of Patent: December 28, 2004Assignee: Kone CorporationInventor: Alexander Pietz
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Publication number: 20040201981Abstract: An illumination device for a pedestrian conveyor system having a glass balustrade includes a lighting element arranged on the glass balustrade.Type: ApplicationFiled: March 3, 2004Publication date: October 14, 2004Applicant: KONE CORPORATIONInventor: Alexander Pietz
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Publication number: 20040168891Abstract: A method and arrangement are provided for guiding a drive chain in an area of a reversing chain wheel of a pedestrian conveyor system. The drive chain contains plate link elements, connecting elements connecting the plate link elements in leading and trailing coupling areas of the respective plate link elements, and guide rolls respectively located in the spaces between the coupling areas. The arrangement is such that the drive chain is guided into the chain wheel so that, as seen in the direction of movement, the connecting element in a leading coupling area of one plate link element is guided into an associated reception area of the chain wheel. The guiding roll of that plate link element is then brought into a corresponding cap-shaped indentation of the reversing wheel.Type: ApplicationFiled: February 4, 2004Publication date: September 2, 2004Applicant: KONE CORPORATIONInventor: Alexander Pietz
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Publication number: 20040134760Abstract: A device for driving step of an escalator or pallets of a moving walkway. A chain wheel has a chain wheel drive shaft and is coupled to the steps or pallets. The device includes a driving gear for being coupled to the chain wheel drive shaft. The device also includes at least one driving motor coupled to the driving gear. The driving gear includes first and second gears coupled to the chain wheel drive shaft. The first and second gears each have variable reference diameters.Type: ApplicationFiled: December 8, 2003Publication date: July 15, 2004Applicant: KONE CorporationInventor: Alexander Pietz
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Publication number: 20030221934Abstract: A drive system for escalators and pedestrian conveyors having a plurality of steps and pallets, respectively, is provided. The drive system includes at least one driving chain including links and joints connecting the links. The driving chain has a chain pitch such that there are no more than two links per step or pallet and the driving chain is connectable to the plurality of steps or pallets via bolts that are positioned between two joints and provided with a roller. The drive system also includes a plurality of interspaced reversing elements having a number of teeth that correspond to the chain pitch.Type: ApplicationFiled: June 19, 2003Publication date: December 4, 2003Applicant: KONE CorporationInventor: Alexander Pietz
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Patent number: 6637579Abstract: The invention relates to a method for reducing the polygon effect that occurs over the course of the reversing of a chain which can be used for a pedestrian conveyor, especially an escalator or moving walkway. To this end, a different rotational speed is superimposed upon the rotational speed of the reversing wheel via the electric drive which indirectly or directly acts upon said reversing wheel.Type: GrantFiled: June 6, 2002Date of Patent: October 28, 2003Assignee: Kone CorporationInventor: Alexander Pietz
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Patent number: 6520300Abstract: The invention relates to a method for regulating the brake(s) of an escalator or moving walkway, independently of the load. According to the invention, actual values are supplied to at least one regulator which contains at least one nominal value, the regulator intermittently performs a comparison between the nominal and actual values and controls at least one brake magnet using these values. The brake magnet or magnets in turn regulate(s) the brake(s) in such a way that a predeterminable linear braking deceleration can be achieved, whereby nominal values, in particular, in the form of several temporary deceleration values, are stored in the regulator in nominal value fields or nominal zones.Type: GrantFiled: January 28, 2002Date of Patent: February 18, 2003Assignee: Kone CorporationInventors: Ludwig Balzer-Apke, Dirk Lange, Sascha Neumann, Alexander Pietz
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Publication number: 20020153224Abstract: The invention relates to a method for reducing the polygon effect that occurs over the course of the reversing of a chain which can be used for a pedestrian conveyor, especially an escalator or moving walkway. To this end, a different rotational speed is superimposed upon the rotational speed of the reversing wheel via the electric drive which indirectly or directly acts upon said reversing wheel.Type: ApplicationFiled: June 6, 2002Publication date: October 24, 2002Inventor: Alexander Pietz
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Publication number: 20020109404Abstract: The invention relates to a method for regulating the brake(s) of an escalator or moving walkway, independently of the load. According to the invention, actual values (I) are supplied to at least one regulator which contains at least one theoretical value (S), the regulator intermittently performs a comparison between the theoretical and actual values and controls at least one brake magnet using these values. The brake magnet or magnets in turn regulate(s) the brake(s) in such a way, that a predeterminable linear braking deceleration can be achieved, whereby theoretical values (S), in particular, in the form of several temporary deceleration values are stored in the regulator in theoretical value fields or theoretical zones.Type: ApplicationFiled: January 28, 2002Publication date: August 15, 2002Inventors: Ludwig Balzer-Apke, Dirk Lange, Sascha Neumann, Alexander Pietz