Patents by Inventor Hugo Fritschy
Hugo Fritschy 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: 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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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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Patent number: 8648508Abstract: A small electric motor is disclosed, such as a claw pole motor. An exemplary small electric motor includes a housing, a stator having at least two stator windings, a rotor having a rotational axis, and a flexible conductor foil for the electrical connection of the stator windings. The conductor foil includes winding connection contacts, external connection contacts and conductor paths between the winding connection contacts and the external connection contacts. Taps of the stator windings are electrically contacted with the winding connection contacts of the conductor foil. The conductor foil can be configured as an elongated strip having at least two connection portions which are arranged in spaced-apart relationship with each other and include winding connection contacts.Type: GrantFiled: July 15, 2011Date of Patent: February 11, 2014Assignee: Maxon Motor AGInventors: David Ramon, Remo Hofstetter, Hugo Fritschy
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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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Patent number: 8414244Abstract: The invention relates to a feeder device (1) for insertion machines for printed circuit boards, comprising a housing, a drive motor (3, 3?), a gear unit (5) and a pin wheel (6) engaging with a transport tape. The drive motor and the gear unit are arranged on a common side wall (2) of the housing such that the axles thereof are perpendicular to the side wall. It is the object of the invention to provide a narrow structural design of the feeder device, which also allows easy mounting. To this end, the rotor (14, 14?) of the drive motor (3) is rotatably mounted on only one axle (4, 4?) which is fixedly connected to the side wall (2) of the housing.Type: GrantFiled: May 24, 2007Date of Patent: April 9, 2013Assignee: Maxon Motor AGInventors: Hugo Fritschy, Arnold Teimel
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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: 20120013209Abstract: A small electric motor is disclosed, such as a claw pole motor. An exemplary small electric motor includes a housing, a stator having at least two stator windings, a rotor having a rotational axis, and a flexible conductor foil for the electrical connection of the stator windings. The conductor foil includes winding connection contacts, external connection contacts and conductor paths between the winding connection contacts and the external connection contacts. Taps of the stator windings are electrically contacted with the winding connection contacts of the conductor foil. The conductor foil can be configured as an elongated strip having at least two connection portions which are arranged in spaced-apart relationship with each other and include winding connection contacts.Type: ApplicationFiled: July 15, 2011Publication date: January 19, 2012Applicant: Maxon Motor AGInventors: David RAMON, Remo HOFSTETTER, Hugo FRITSCHY
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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
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Publication number: 20100284769Abstract: A feeder device is disclosed for insertion machines for printed circuit boards, including a housing, a drive motor, a gear unit and a pin wheel engaging with a transport tape. The drive motor and the gear unit are arranged on a common side wall of the housing such that the axles thereof are perpendicular to the side wall. A narrow structural design of the feeder device can be provided, which also allows easy mounting. To this end, the rotor of the drive motor is rotatably mounted on only one axle which is fixedly connected to the side wall of the housing.Type: ApplicationFiled: May 24, 2007Publication date: November 11, 2010Applicant: MAXON MOTOR AGInventors: Hugo Fritschy, Arnold Teimel
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Patent number: 4412146Abstract: An electric motor construction is described in which the permanent magnet and a flux return element are embedded in a molded structure serving as a face plate and including seats for bearings as well as a bore for the motor shaft.Type: GrantFiled: October 30, 1980Date of Patent: October 25, 1983Inventors: Bodo Futterer, Jurgen Mayer, Hugo Fritschy
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Patent number: 4406963Abstract: An electrical machine having an armature that is rotatable in a stator. The armature has a winding that is energized via a commutator or via slip rings cooperating with brushes. A holding plate is provided on which the brushes are held and which is supported freely shiftable in the direction of the axis of rotation of the machine, but circumferentially immovable. The holding plate butts against a part that is supported axially immovable on the shaft of the armature, preferably a bearing. Spring means acting between the holding plate and an adjacent side plate of the stator or housing serves to bias the holding plate in an axial direction. The part against which the holding plate butts, lies preferably in or near the plane of the holding plate.Type: GrantFiled: January 29, 1981Date of Patent: September 27, 1983Assignee: Interelectric AGInventors: Peter Wolf, Hugo Fritschy
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Patent number: 4327479Abstract: A method for assembling a stator for an electric machine having a permanent magnet for generating a magnetic field in an air gap. Assembly of the stator is performed with the aid of a plunger, the cross section of which corresponds to the cross section of the air gap. The permanent magnet is slid into the interior of the plunger, whereas the flux return ring is slid over the same. The so formed sub-assembly is put into a casting mold adapted to be filled with a plastic material, which in its cured or hardened state forms a casing intimately surrounding the outer surface of the flux return ring and forming a face plate, to which the permanent magnet adheres. When the plastic material has set, the casting mold is opened and the plunger is retracted from the sub-assembly, resulting in a close toleranced cylindrical air gap space. After insertion of a bell-shaped rotor, a brush cover is assembled opposite the face plate.Type: GrantFiled: April 30, 1981Date of Patent: May 4, 1982Assignee: Interelectric AktiengesellschaftInventors: Bodo Futterer, Jurgen Mayer, Hugo Fritschy
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Patent number: 4173822Abstract: A method for assembling a stator for an electric machine having a permanent magnet for generating a magnetic field in an air gap. Assembly of the stator is performed with the aid of a plunger, the cross-section of which corresponds to the cross-section of the air gap. The permanent magnet is slid into the interior of the plunger, whereas the flux return ring is slid over the same. The so formed sub-assembly is put into a casting mold adapted to be filled with a plastics material, which in its cured or hardened state forms a casing intimately surrounding the outer surface of the flux return ring and forming a face plate, to which the permanent magnet adheres. When the plastics material has set, the casting mold is opened and the plunger is retracted from the sub-assembly, resulting in a close toleranced cylindrical air gap space. After insertion of a bell-shaped rotor, a brush cover is assembled opposite the face plate.Type: GrantFiled: December 30, 1977Date of Patent: November 13, 1979Assignee: Interelectric AktiengesellschaftInventors: Bodo Futterer, Jurgen Mayer, Hugo Fritschy