Patents by Inventor Raniero Pittini
Raniero Pittini 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: 9680347Abstract: The invention relates to an electric motor/gear mechanism unit including a housing, an iron-free rotor winding rotatably arranged in the interior of the housing, a collector connected to the rotor winding, a rotor shaft extending through the collector, and a gear mechanism which is connected to the rotor shaft and which has an output shaft. The present invention is so conceived that the gear mechanism is produced from a non-magnetic material and arranged in the interior of the rotor winding.Type: GrantFiled: August 1, 2014Date of Patent: June 13, 2017Assignee: MAXON MOTOR AGInventors: Daniel Sherwin, Albert Hugo Fritschy, Franzxaver Fölmli, Jens Oliver Schulze, Raniero Pittini, Dirk Zimmermann
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Patent number: 9509187Abstract: Exemplary embodiments relate to a hollow-cylindrical coreless winding for an electric motor. The winding includes a plurality of single coils which are distributed across the circumference of the winding, wherein each single coil includes a plurality of turns which are spirally wound around a winding axis which is perpendicular to an axis of the winding. Successive single coils overlap in a roof tile manner. The winding includes at least two phase windings, each of the phase windings consisting of several ones of the single coils. The phase windings are offset with respect to each other in the circumferential direction of the hollow-cylindrical winding, so that the single coils of a first phase winding are disposed in the circumferential direction of the hollow-cylindrical winding between the single coils of a second phase winding. Each of the phase windings is wound from a continuous wire.Type: GrantFiled: February 27, 2013Date of Patent: November 29, 2016Assignee: MAXON MOTOR AGInventors: Franz-Xaver Fölmli, Jens Schulze, Raniero Pittini
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Patent number: 9500265Abstract: The present invention relates to a linear drive with a stator, a runner, and two rotative drive units provided for driving the runner. It is provided according to the invention that the linear drive comprises two magnetorheological clutches, wherein the first drive unit can be coupled to the runner using a first magnetorheological clutch and the second drive unit can be coupled to the runner using a second magnetorheological clutch. The output torque of the first drive unit acts upon the runner in the opposite direction to the output torque of the second drive unit.Type: GrantFiled: November 20, 2013Date of Patent: November 22, 2016Assignee: Maxon Motor AGInventors: Raniero Pittini, Max Erick Busse-Grawitz, Mathieu Roulet, Dominique Martin, Rene Waldvogel
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Patent number: 9308965Abstract: The invention relates to an electric wheel hub drive for a vehicle, in particular a bicycle. The wheel hub drive comprises a hub housing that is pivot-mounted about an axis and a brushless electric motor coaxially arranged with regard to the axis and including a rotor and a stator for driving the hub housing. The rotor of the electric motor includes at least one permanent magnet. According to the invention, the stator includes an ironless stator winding.Type: GrantFiled: August 24, 2012Date of Patent: April 12, 2016Assignee: MAXON MOTOR AGInventors: Franz-Xaver Fölmli, Mathis Trachsel, David Ramon, Hugo Fritschy, Raniero Pittini
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Patent number: 9016155Abstract: A power transmission unit includes a first input shaft and a second input shaft which can be mutually driven by a motor shaft in opposite directions. A driven shaft can be coupled, depending on the desired sense of rotation of the driven shaft, to the first or to the second input shaft, and can engage with a first output shaft and with a second output shaft. The first output shaft can be directly coupled with the first input shaft via a first magneto-rheological clutch, and the second output shaft can be directly coupled with the second input shaft via a second magneto-rheological clutch. A magneto-rheological clutch includes a coil powered by wireless energy transmission between a sender connected to a stationary housing and a receiver rotating with the coil.Type: GrantFiled: October 23, 2012Date of Patent: April 28, 2015Assignee: Maxon Motor AGInventors: Raniero Pittini, Max Erick Busse-Grawitz
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Publication number: 20140342867Abstract: The invention relates to an electric motor/gear mechanism unit including a housing, an iron-free rotor winding rotatably arranged in the interior of the housing, a collector connected to the rotor winding, a rotor shaft extending through the collector, and a gear mechanism which is connected to the rotor shaft and which has an output shaft. The present invention is so conceived that the gear mechanism is produced from a non-magnetic material and arranged in the interior of the rotor winding.Type: ApplicationFiled: August 1, 2014Publication date: November 20, 2014Applicant: MAXON MOTOR AGInventors: Daniel SHERWIN, Hugo FRITSCHY, Franzxaver FÖLMLI, Jens Oliver SCHULZE, Raniero PITTINI, Dirk ZIMMERMANN
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Patent number: 8829750Abstract: The invention relates to an electric motor/gear mechanism unit including a housing, an iron-free rotor winding rotatably arranged in the interior of the housing, a collector connected to the rotor winding, a rotor shaft extending through the collector, and a gear mechanism which is connected to the rotor shaft and which has an output shaft. The present invention is so conceived that the gear mechanism is produced from a non-magnetic material and arranged in the interior of the rotor winding.Type: GrantFiled: November 30, 2009Date of Patent: September 9, 2014Assignee: maxon motor agInventors: Daniel Sherwin, Hugo Fritschy, Franzxaver Fölmli, Jens Oliver Schulze, Raniero Pittini, Dirk Zimmermann
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Patent number: 8791607Abstract: The present invention relates to an electric linear drive, particularly for a rotary-lifting motor. Such a linear drive includes a winding system including a plurality of wound coils which are arranged to be coaxial to each other and successive in axial direction, and a magnet system which is movable in axial direction relative to the winding system and includes a plurality of axially successive permanent magnets. The winding system is normally fed by a controlled converter. The coils of the winding system and the permanent magnets of the magnet system define an air gap thereinbetween. Furthermore, a sensor is provided for detecting the relative movement of winding system and magnet system and for detecting the relative position of the two systems, the sensor being used for scanning a timing ruler mounted on the outer circumference of the magnet system.Type: GrantFiled: January 12, 2011Date of Patent: July 29, 2014Assignee: Maxon Motor AGInventors: Alexis Boletis, Hugo Fritschy, Remo Hofstetter, Jens Oliver Schulze, Raniero Pittini, David Ramon, Max Erick Busse-Grawitz
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Publication number: 20140137679Abstract: The present invention relates to a linear drive with a stator, a runner, and two rotative drive units provided for driving the runner. It is provided according to the invention that the linear drive comprises two magnetorheological clutches, wherein the first drive unit can be coupled to the runner using a first magnetorheological clutch and the second drive unit can be coupled to the runner using a second magnetorheological clutch. The output torque of the first drive unit acts upon the runner in the opposite direction to the output torque of the second drive unit.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Applicant: MAXON MOTOR AGInventors: Raniero PITTINI, Max Erick Busse-Grawitz, Mathieu Roulet, Dominique Martin, Rene Waldvogel
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Patent number: 8569920Abstract: In a small electric motor having a stator and a rotor which includes a solid-cylindrical permanent magnet and at least one shaft element mounted on a face of the permanent magnet and bonded thereto by adhesive, the shaft element has at least one recess on its face facing the permanent magnet. The adhesive is introduced into the recess and contacting the face of the permanent magnet in the area of the recess.Type: GrantFiled: June 9, 2011Date of Patent: October 29, 2013Assignee: Maxon Motor AGInventors: David Ramon, Hugo Fritschy, Jens Oliver Schulze, Hans-Georg Jansing, Raniero Pittini, Minh Hieu Lam, Alexis Boletis
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Publication number: 20130249344Abstract: Exemplary embodiments relate to a hollow-cylindrical coreless winding for an electric motor. The winding includes a plurality of single coils which are distributed across the circumference of the winding, wherein each single coil includes a plurality of turns which are spirally wound around a winding axis which is perpendicular to an axis of the winding. Successive single coils overlap in a roof tile manner. The winding includes at least two phase windings, each of the phase windings consisting of several ones of the single coils. The phase windings are offset with respect to each other in the circumferential direction of the hollow-cylindrical winding, so that the single coils of a first phase winding are disposed in the circumferential direction of the hollow-cylindrical winding between the single coils of a second phase winding. Each of the phase windings is wound from a continuous wire.Type: ApplicationFiled: February 27, 2013Publication date: September 26, 2013Applicant: MAXON MOTOR AGInventors: Franz-Xaver Fölmli, Jens Schulze, Raniero Pittini
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Publication number: 20130049549Abstract: The invention relates to an electric wheel hub drive for a vehicle, in particular a bicycle. The wheel hub drive comprises a hub housing that is pivot-mounted about an axis and a brushless electric motor coaxially arranged with regard to the axis and including a rotor and a stator for driving the hub housing. The rotor of the electric motor includes at least one permanent magnet. According to the invention, the stator includes an ironless stator winding.Type: ApplicationFiled: August 24, 2012Publication date: February 28, 2013Applicant: Maxon Motor AGInventors: Franz-Xaver FÖLMLI, Mathis Trachsel, David RAMON, Hugo FRITSCHY, Raniero PITTINI
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Publication number: 20110304234Abstract: In a small electric motor having a stator and a rotor which includes a solid-cylindrical permanent magnet and at least one shaft element mounted on a face of the permanent magnet and bonded thereto by adhesive, the shaft element has at least one recess on its face facing the permanent magnet. The adhesive is introduced into the recess and contacting the face of the permanent magnet in the area of the recess.Type: ApplicationFiled: June 9, 2011Publication date: December 15, 2011Applicant: Maxon Motor AGInventors: David Ramon, Hugo Fritschy, Jens Oliver Schulze, Hans-Georg Jansing, Raniero Pittini, Minh Hieu Lam, Alexis Boletis
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Publication number: 20110298322Abstract: The invention relates to an electric motor/gear mechanism unit including a housing, an iron-free rotor winding rotatably arranged in the interior of the housing, a collector connected to the rotor winding, a rotor shaft extending through the collector, and a gear mechanism which is connected to the rotor shaft and which has an output shaft. The present invention is so conceived that the gear mechanism is produced from a non-magnetic material and arranged in the interior of the rotor winding.Type: ApplicationFiled: November 30, 2009Publication date: December 8, 2011Applicant: MAXON MOTOR AGInventors: Daniel Sherwin, Hugo Fritschy, Franzxaver Fölmli, Jens Oliver Schulze, Raniero Pittini, Dirk Zimmermann
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Publication number: 20110175462Abstract: The present invention relates to an electric linear drive, particularly for a rotary-lifting motor. Such a linear drive includes a winding system including a plurality of wound coils which are arranged to be coaxial to each other and successive in axial direction, and a magnet system which is movable in axial direction relative to the winding system and includes a plurality of axially successive permanent magnets. The winding system is normally fed by a controlled converter. The coils of the winding system and the permanent magnets of the magnet system define an air gap thereinbetween. Furthermore, a sensor is provided for detecting the relative movement of winding system and magnet system and for detecting the relative position of the two systems, the sensor being used for scanning a timing ruler mounted on the outer circumference of the magnet system.Type: ApplicationFiled: January 12, 2011Publication date: July 21, 2011Applicant: Maxon Motor AGInventors: Alexis Boletis, Hugo Fritschy, Remo Hofstetter, Jens Oliver Schulze, Raniero Pittini