Patents by Inventor Sadik Sadiku
Sadik Sadiku 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: 11539274Abstract: A method used for producing rotors and stators of electric motors, including the production of connection wires, and comprises the following steps: Winding the coil windings (12), which comprise a plurality of individual wires (14), on a wire winder (28) to which the individual wires (14) are fed from a wire supply unit (16) via a wire guide 18, 20, 22), Depositing the coil windings (12) in a draw-in tool (36), Drawing the coil windings (12) into grooves of a stator (84) or rotor body, Combining the individual wires (14) in phases by means of slide-on tubes (52) to produce the connection wires of the stator or rotor in question.Type: GrantFiled: December 20, 2018Date of Patent: December 27, 2022Assignee: Schaeffler ELMOTEC STATOMAT GmbHInventor: Sadik Sadiku
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Patent number: 11522422Abstract: A method to produce rotors or stators of electric machines having radial grooves into which webs of flat windings having parallel webs and winding heads connecting said webs being pulled, wherein a winding is produced on a rotating, strip-shaped flat former shorter than the winding such that windings are pulled off the former and transferred into a linear transfer device, which transports the windings to a removal position at which the windings are transferred into radial grooves of a rotor or of the transfer tool for transfer into radial grooves of a stator, wherein the former, the transfer device, and the rotor or the transfer tool being jointly rotated about an axis of rotation of the former when rotated to form windings.Type: GrantFiled: March 24, 2021Date of Patent: December 6, 2022Assignee: Schaeffler ELMOTEC STATOMAT GmbHInventors: Sadik Sadiku, Keith Alan Witwer
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Patent number: 11303176Abstract: A coil winding (20) that consists of a number of wires (22) braided with one another and bent multiple times in opposite directions such that mutually parallel legs (28, 30) of the wires (22) which are intended to fill the slots (16) are connected by winding overhangs (32, 34) which project from the end face of the stators (10) or rotors. The winding overhangs (32, 34) each have two oblique winding overhang sections (36, 38, 40, 42) having a winding overhang tip (44, 46) in between. The wires (22) are arranged one behind the other in a longitudinal direction (L) of the coil winding (20). The winding overhangs (32, 34), which are distributed in the longitudinal direction (L) over the entire length of the coil winding, of at least one wire (22) protrude transversely to the longitudinal direction (L) beyond the winding overhang (28, 30).Type: GrantFiled: October 2, 2017Date of Patent: April 12, 2022Assignee: Schaeffler ELMOTEC STATOMAT GmbHInventors: Sadik Sadiku, Keith Witwer
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Publication number: 20210211026Abstract: A method to produce rotors or stators of electric machines having radial grooves into which webs of flat windings having parallel webs and winding heads connecting said webs being pulled, wherein a winding is produced on a rotating, strip-shaped flat former shorter than the winding such that windings are pulled off the former and transferred into a linear transfer device, which transports the windings to a removal position at which the windings are transferred into radial grooves of a rotor or of the transfer tool for transfer into radial grooves of a stator, wherein the former, the transfer device, and the rotor or the transfer tool being jointly rotated about an axis of rotation of the former when rotated to form windings.Type: ApplicationFiled: March 24, 2021Publication date: July 8, 2021Applicant: Schaeffler ELMOTEC STATOMAT GmbHInventors: Sadik SADIKU, Keith Alan WITWER
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Patent number: 10992211Abstract: A method to produce rotors or stators of electric machines having radial grooves into which webs of flat windings having parallel webs and winding heads connecting said webs being pulled, wherein a winding is produced on a rotating, strip-shaped flat former shorter than the winding such that windings are pulled off the former and transferred into a linear transfer device, which transports the windings to a removal position at which the windings are transferred into radial grooves of a rotor or of the transfer tool for transfer into radial grooves of a stator, wherein the former, the transfer device, and the rotor or the transfer tool being jointly rotated about an axis of rotation of the former when rotated to form windings.Type: GrantFiled: December 2, 2016Date of Patent: April 27, 2021Assignee: Schaeffler ELMOTEC STATOMAT GmbHInventors: Sadik Sadiku, Keith Witwer
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Patent number: 10938282Abstract: The method according to the invention is used to produce a coil winding (70) which can be inserted into the grooves of a stator or rotor of an electric machine. While using a winding template (26) and a wire handling device (14), the invention proposes carrying out a displacement process between a first and a second holding region (34, 36) even before the wires (32) are initially wound onto the winding template (26) in order to produce an inclined wire section (40) which is subsequently shaped into winding heads (42) by means of a rotating/winding process. The novel method offers the advantage that all of the wires (32) of a coil winding (70) can be processed simultaneously using a comparably simple winding device (110). The projection of the winding heads (42) over the stator can also be minimized.Type: GrantFiled: November 24, 2016Date of Patent: March 2, 2021Assignee: Schaeffler ELMOTEC STATOMAT GmbHInventors: Sadik Sadiku, Keith Witwer
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Publication number: 20210036588Abstract: A method used for producing rotors and stators of electric motors, including the production of connection wires, and comprises the following steps: Winding the coil windings (12), which comprise a plurality of individual wires (14), on a wire winder (28) to which the individual wires (14) are fed from a wire supply unit (16) via a wire guide 18, 20, 22), Depositing the coil windings (12) in a draw-in tool (36), Drawing the coil windings (12) into grooves of a stator (84) or rotor body, Combining the individual wires (14) in phases by means of slide-on tubes (52) to produce the connection wires of the stator or rotor in question.Type: ApplicationFiled: December 20, 2018Publication date: February 4, 2021Applicant: Elmotec Statomat Holding GmbHInventor: Sadik SADIKU
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Patent number: 10615654Abstract: The disclosed stator or rotor has a distributed wave winding, in which the wires are associated in pairs lying with straight segments in the same slots. Head portions of two successive straight segments of each wire of a pair protrude from opposite ends of slots. For forming two wire groups, a plurality of coil windings are simultaneously created by winding up n parallel wires with intermediate spacing onto a striplike former that is rotatable about its longitudinal axis. From each of the parallel wires one straight segment and one end turn are doubled by being bent over with the wire length of a head portion, and then head portions are formed and the wires interlaced. Finally, the two wire groups are wound onto one another and thereby intertwined with one another, and then introduced as an entire intertwined wave winding strand into the stator or rotor slots.Type: GrantFiled: March 11, 2014Date of Patent: April 7, 2020Assignee: Elmotec Statomat Holding GmbHInventors: Sadik Sadiku, Keith Witwer
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Publication number: 20200091801Abstract: The invention relates to a coil former (1) for winding conductor wire (100) into coil windings (101), in particular for subsequent insertion in a stator carrier, said coil former having a coil former front (2) and a coil former rear (3), wherein the coil former front (2) and the coil former rear (3) span, by means of a peripheral surface (4), a spiral winding path (P) around a spiral axis (W) for the conductor wire (100), and wherein support elements (10, 11) are arranged along the winding path (P) and protrude beyond the peripheral surface (4) and laterally delimit the spiral winding path (P). The invention also relates to a winding device (50) having a coil former (1) of this kind and to a method for operating the winding device (50).Type: ApplicationFiled: April 23, 2018Publication date: March 19, 2020Applicant: Elmotec Statomat Holding GmbHInventor: Sadik SADIKU
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Publication number: 20190238019Abstract: The invention relates to a coil winding (2) for insertion into radially open slots (16) of stators (10) or rotors of electric machines. The coil winding (20) consists of a number of wires (22) braided with one another and bent multiple times in opposite directions such that mutually parallel legs (28, 30) of the wires (22) which are intended to fill the slots (16) are connected by winding overhangs (32, 34) which project from the end face of the stators (10) or rotors. The winding overhangs (32, 34) each have two oblique winding overhang sections (36, 38, 40, 42) having a winding overhang tip (44, 46) in between. The wires (22) are arranged one behind the other in a longitudinal direction (L) of the coil winding (20).Type: ApplicationFiled: October 2, 2017Publication date: August 1, 2019Applicant: Elmotec Statomat Holding GmbHInventors: Sadik SADIKU, Keith WITWER
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Publication number: 20180367015Abstract: The invention relates to a method which is used to produce rotors or stators of electric machines, wherein the rotors or stators have radial grooves, into which the webs of flat windings (26) having parallel webs and having winding heads (92) connecting said webs are pulled, wherein the flat windings (26) are prefabricated on a rotating, strip-shaped flat former (20) and the initially flat windings are pulled into the radial grooves (74) of a stator or of a transfer tool (44) for transfer into the grooves of a rotor.Type: ApplicationFiled: December 2, 2016Publication date: December 20, 2018Inventors: Sadik SADIKU, Keith WITWER
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Publication number: 20180331606Abstract: The method according to the invention is used to produce a coil winding (70) which can be inserted into the grooves of a stator or rotor of an electric machine. While using a winding template (26) and a wire handling device (14), the invention proposes carrying out a displacement process between a first and a second holding region (34, 36) even before the wires (32) are initially wound onto the winding template (26) in order to produce an inclined wire section (40) which is subsequently shaped into winding heads (42) by means of a rotating/winding process. The novel method offers the advantage that all of the wires (32) of a coil winding (70) can be processed simultaneously using a comparably simple winding device (110). The projection of the winding heads (42) over the stator can also be minimized.Type: ApplicationFiled: November 24, 2016Publication date: November 15, 2018Inventors: Sadik SADIKU, Keith WITWER
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Publication number: 20140252908Abstract: The disclosed stator or rotor has a distributed wave winding, in which the wires are associated in pairs lying with straight segments in the same slots. Head portions of two successive straight segments of each wire of a pair protrude from opposite ends of slots. For forming two wire groups, a plurality of coil windings are simultaneously created by winding up n parallel wires with intermediate spacing onto a striplike former that is rotatable about its longitudinal axis. From each of the parallel wires one straight segment and one end turn are doubled by being bent over with the wire length of a head portion, and then head portions are formed and the wires interlaced. Finally, the two wire groups are wound onto one another and thereby intertwined with one another, and then introduced as an entire intertwined wave winding strand into the stator or rotor slots.Type: ApplicationFiled: March 11, 2014Publication date: September 11, 2014Applicant: Elmotec Statomat Vertriebs GmbHInventors: Sadik SADIKU, Keith A. WITWER
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Method for producing stator or rotor with interlaced wire groups forming an intertwined wave winding
Patent number: 8667666Abstract: The disclosed method produces a stator or rotor having a distributed wave winding, in which the wires are associated in pairs lying with straight segments in the same slots. Head portions of two successive straight segments of each wire of a pair protrude from opposite ends of slots. For forming two wire groups, a plurality of coil windings are simultaneously created by winding up n parallel wires with intermediate spacing onto a striplike former that is rotatable about its longitudinal axis. From each of the parallel wires one straight segment and one end turn are doubled by being bent over with the wire length of a head portion, and then head portions are formed and the wires interlaced. Finally, the two wire groups are wound onto one another and thereby intertwined with one another, and then introduced as an entire intertwined wave winding strand into the stator or rotor slots.Type: GrantFiled: April 14, 2009Date of Patent: March 11, 2014Assignee: Elmotec Statomat Vertriebs GmbHInventors: Sadik Sadiku, Keith A. Witwer -
Patent number: 8020282Abstract: An apparatus for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n parallel wires (10) with intermediate spacing onto a rotatable former (20). To obtain small winding heads, alternatingly in a work step A, one fillet (14) and the wire length of one head portion (16) are made from each of the n parallel wires (10) on the former (20). Then in a work step B, the resultant fillets (14) together with the adjoining first end of the respective associated head portions (16), and the wire guide together with the second end of these head portions (16), are displaced relative to one another along the former (20) by n times the intermediate spacing of the wires (10).Type: GrantFiled: March 31, 2010Date of Patent: September 20, 2011Assignee: Elmotec Statomat Vertriebs GmbHInventors: Sadik Sadiku, Keith A. Witwer
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Publication number: 20100180433Abstract: An apparatus for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n parallel wires (10) with intermediate spacing onto a rotatable former (20). To obtain small winding heads, alternatingly in a work step A, one fillet (14) and the wire length of one head portion (16) are made from each of the n parallel wires (10) on the former (20). Then in a work step B, the resultant fillets (14) together with the adjoining first end of the respective associated head portions (16), and the wire guide together with the second end of these head portions (16), are displaced relative to one another along the former (20) by n times the intermediate spacing of the wires (10). After work steps A and B have been repeated multiple times, the fillets (14) for the last n stator slots are then also made on the former (20).Type: ApplicationFiled: March 31, 2010Publication date: July 22, 2010Inventors: Sadik SADIKU, Keith A. Witwer
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Patent number: 7703192Abstract: A method for producing a pattern of coil windings in which each coil turn has one fillet each in two slots, and the two fillets are joined by a head portion. A plurality of coil turns are made simultaneously by winding n parallel wires with intermediate spacing onto a rotatable former. To obtain small winding heads, there is a repeating of: a laying work step where one fillet and the wire length of one head portion are laid on the former; and a displacing work step where the resultant fillets together with the adjoining first end of the respective associated head portions, and the wire guide together with the second end of these head portions, are displaced relative to one another along the former by n times the intermediate spacing of the wires. Next, the winding is removed from the former, and pressed flat.Type: GrantFiled: July 20, 2005Date of Patent: April 27, 2010Assignee: Elmotec Statomat Vertriebs GmbHInventors: Sadik Sadiku, Keith A. Witwer
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Patent number: 7679254Abstract: A method for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n parallel wires (10) with intermediate spacing onto a rotatable former (20). To obtain small winding heads, alternatingly in a work step A, one fillet (14) and the wire length of one head portion (16) are made from each of the parallel wires (10) on the former (20). Then in a work step B, the resultant fillets (14) together with the adjoining first end of the respective associated head portions (16), and the wire guide together with the second end of these head portions (16), are displaced relative to one another along the former (20) by n times the intermediate spacing of the wires (10). After work steps A and B have been repeated multiple times, the fillets (14) for the last n stator slots are then also made on the former (20).Type: GrantFiled: June 25, 2008Date of Patent: March 16, 2010Assignee: Elmotec Statomat Vertriebs GmbHInventors: Sadik Sadiku, Keith A. Witwer
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Publication number: 20090261683Abstract: The method serves to produce a stator or rotor having a distributed wave winding, in which the wires (15) are associated in pairs lying with straight segments (20) in the same slots. Head portions (22) of two successive straight segments of each wire of a pair protrude from opposite ends of slots past the end faces of the stator or rotor. For forming two wire groups (10, 12) in each case a plurality of coil windings are simultaneously created by winding up n parallel wires (15), paid out from a wire guide, with intermediate spacing onto a striplike former that is rotatable about its longitudinal axis. In this process in alternation in a work step A from each of the parallel wires (15) one straight segment (20) and one end turn doubled by being bent over, with the wire length of a head portion (22), are created.Type: ApplicationFiled: April 14, 2009Publication date: October 22, 2009Inventors: Sadik SADIKU, Keith A. WITWER
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Publication number: 20080258575Abstract: A method for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n parallel wires (10) with intermediate spacing onto a rotatable former (20). To obtain small winding heads, alternatingly in a work step A, one fillet (14) and the wire length of one head portion (16) are made from each of the parallel wires (10) on the former (20). Then in a work step B, the resultant fillets (14) together with the adjoining first end of the respective associated head portions (16), and the wire guide together with the second end of these head portions (16), are displaced relative to one another along the former (20) by n times the intermediate spacing of the wires (10). After work steps A and B have been repeated multiple times, the fillets (14) for the last n stator slots are then also made on the former (20).Type: ApplicationFiled: June 25, 2008Publication date: October 23, 2008Inventors: Sadik Sadiku, Keith A. Witwer