Patents by Inventor Louis J. Finkle

Louis J. Finkle 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).

  • Publication number: 20180212502
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating outer rotor, and an inner rotor fixed to a motor shaft. The outer rotor is designed to have a low moment of inertia and includes angularly spaced apart first bars and permanent magnets on an inner surface of the outer rotor. The inner rotor includes angularly spaced apart second bars and interior flux barriers aligned with the second bars. The outer rotor is initially accelerated by cooperation of a rotating stator magnetic field with the first bars. As the outer rotor accelerates towards synchronous RPM, a rotating magnetic field of the permanent magnets cooperate with the second bars of the inner rotor to accelerate the inner rotor. At near synchronous speed the rotating stator magnetic field reaches through the outer rotor and into the inner rotor coupling the two rotors for efficient permanent magnet operation.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 26, 2018
    Inventor: Louis J. Finkle
  • Publication number: 20180166959
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating outer rotor, and an inner rotor fixed to a motor shaft. The outer rotor is designed to have a low moment of inertia and includes angularly spaced apart first bars and permanent magnets on an inner surface of the outer rotor. The inner rotor includes angularly spaced apart second bars and interior flux barriers aligned with the second bars. The outer rotor is initially accelerated by cooperation of a rotating stator magnetic field with the first bars. As the outer rotor accelerates towards synchronous RPM, a rotating magnetic field of the permanent magnets cooperate with the second bars of the inner rotor to accelerate the inner rotor. At near synchronous speed the rotating stator magnetic field reaches through the outer rotor and into the inner rotor coupling the two rotors for efficient permanent magnet operation.
    Type: Application
    Filed: February 21, 2017
    Publication date: June 14, 2018
    Inventor: Louis J. Finkle
  • Patent number: 9923439
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating Hybrid Permanent Magnet/squirrel Cage (HPMSC) outer rotor, and a Squirrel Cage (SC) inner rotor fixed to a motor shaft. The HPMSC rotor has spaced part permanent magnets and sets of first bars between consecutive permanent magnets. The SC rotor has groups of second bars, and slots in an outer surface between consecutive groups of the second bars. The HPMSC rotor is initially accelerated by cooperation of the stator with the first bars. The permanent magnets create a rotating magnetic field cooperating with the second bars to accelerate the SC rotor. As the HPMSC rotor accelerates towards synchronous RPM, the stator field reaches into the HPMSC rotor and cooperates with the permanent magnets to transition to synchronous operation. Salient poles created by cooperation of the permanent magnets with the slots lock the two rotors at synchronous RPM.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: March 20, 2018
    Assignee: MOTOR GENERATOR TECHNOLOGY, INC.
    Inventor: Louis J. Finkle
  • Patent number: 9923440
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating outer rotor, and an inner rotor fixed to a motor shaft. In one embodiment the outer rotor includes spaced apart first bars and permanent magnets, and the inner rotor includes spaced apart second bars. In another embodiment the outer rotor includes angularly spaced apart first bars but no permanent magnets, and the inner rotor includes permanent magnets and may also include angularly spaced apart second bars. The outer rotor is initially accelerated by cooperation of a rotating stator magnetic field with the first bars. As the outer rotor accelerates towards synchronous RPM, the inner rotor is accelerated to transition to efficient synchronous operation. The outer rotor thus acts as a clutch to decouple the inner rotor from the rotating stator magnetic field at startup and to couple the inner rotor to the rotating stator magnetic field at synchronous speed.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: March 20, 2018
    Assignee: MOTOR GENERATOR TECHNOLOGY, INC.
    Inventor: Louis J. Finkle
  • Patent number: 9484794
    Abstract: A hybrid induction motor includes an inductive rotor and an independently rotating permanent magnet rotor. The inductive rotor is a squirrel cage type rotor for induction motor operation at startup. The permanent magnet rotor is axially displaced and variably coupled to the inductive rotor (or to a motor load) through a clutch and is allowed to rotate independently of the inductive rotor at startup. The independently rotating permanent magnet rotor quickly reaches synchronous RPM at startup. As the inductive rotor approaches or reaches synchronous RPM, the coupling between the inductive rotor and the permanent magnet rotor increases until the two rotors are coupled the synchronous RPM and the motor transitions to efficient synchronous operation.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: November 1, 2016
    Inventor: Louis J. Finkle
  • Patent number: 9419504
    Abstract: A hybrid induction motor includes an inductive rotor and an independently rotating permanent magnet rotor. The inductive rotor is a squirrel cage type rotor for induction motor operation at startup. The permanent magnet rotor is variably coupled to the inductive rotor (or to a motor load) through a clutch and is allowed to rotate independently of the inductive rotor at startup. The independently rotating permanent magnet rotor quickly reaches synchronous RPM at startup. As the inductive rotor approaches or reaches synchronous RPM, the coupling between the inductive rotor and the inner permanent magnet rotor increases until the two rotors are coupled at the synchronous RPM and the motor transitions to efficient synchronous operation.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: August 16, 2016
    Inventor: Louis J. Finkle
  • Publication number: 20150194866
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating HPMSC outer rotor, and a Squirrel Cage (SC) inner rotor fixed to a motor shaft. The HPMSC rotor has spaced part permanent magnets and sets of first bars between consecutive permanent magnets. The SC rotor has groups of second bars, and slots in an outer surface between consecutive groups of the second bars. The HPMSC rotor is initially accelerated by cooperation of the stator with the first bars. The permanent magnets create a rotating magnetic field cooperating with the second bars to accelerate the SC rotor. As the HPMSC rotor accelerates towards synchronous RPM, the stator field reaches into the HPMSC rotor and cooperates with the permanent magnets to transition to synchronous operation. Salient poles created by cooperation of the permanent magnets with the slots lock the two rotors at synchronous RPM.
    Type: Application
    Filed: January 9, 2014
    Publication date: July 9, 2015
    Inventor: Louis J. Finkle
  • Publication number: 20150194868
    Abstract: A hybrid induction motor includes a fixed stator, an independently rotating outer rotor, and an inner rotor fixed to a motor shaft. In one embodiment the outer rotor includes spaced apart first bars and permanent magnets, and the inner rotor includes spaced apart second bars. In another embodiment the outer rotor includes angularly spaced apart first bars but no permanent magnets, and the inner rotor includes permanent magnets and may also include angularly spaced apart second bars. The outer rotor is initially accelerated by cooperation of a rotating stator magnetic field with the first bars. As the outer rotor accelerates towards synchronous RPM, the inner rotor is accelerated to transition to efficient synchronous operation. The outer rotor thus acts as a clutch to decouple the inner rotor from the rotating stator magnetic field at startup and to couple the inner rotor to the rotating stator magnetic field at synchronous speed.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 9, 2015
    Inventor: Louis J. Finkle
  • Patent number: 8978238
    Abstract: A method and apparatus for terminating stator windings. The apparatus includes stator winding termination disks having “U” shaped winding mouths for each group of stator winding ends. After winding the stator, the stator winding termination disks are laid over the termination end of the stator, the unterminated stator windings for one phase of the stator are placed into the “U” shaped winding mouths, the “U” shaped winding mouths are crimped over the unterminated stator windings, and pressure and heat are applied to melt insulation on the unterminated stator winding ends and form an electrical connection between the stator winding termination disks and stator windings for each phase of the stator and for common.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: March 17, 2015
    Inventor: Louis J. Finkle
  • Patent number: 8952587
    Abstract: Apparatus and method for tuning the magnetic field of windmill generators to obtain efficient operation over a broad RPM range. The windmill generator includes fixed windings (or stator) inside a rotating rotor carrying permanent magnets. The permanent magnets are generally cylindrical and have North and South poles formed longitudinally in the magnets. Magnetically conducting circuits are formed by the magnets residing in magnetic conducting pole pieces (for example, low carbon or soft steel, and/or laminated insulated layers, of non-magnetizable material). Rotating the permanent magnets, or rotating non-magnetically conducting shunting pieces, inside the pole pieces, either strengthens or weakens the resulting magnetic field to adjust the windmill generators for low RPM torque or for efficient high RPM efficiency. Varying the rotor magnetic field adjusts the voltage output of the windmill generators allowing the windmill generator to maintain a fixed voltage output.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: February 10, 2015
    Inventor: Louis J. Finkle
  • Publication number: 20130278096
    Abstract: A hybrid induction motor includes an inductive rotor and an independently rotating permanent magnet rotor. The inductive rotor is a squirrel cage type rotor for induction motor operation at startup. The permanent magnet rotor is axially displaced and variably coupled to the inductive rotor (or to a motor load) through a clutch and is allowed to rotate independently of the inductive rotor at startup. The independently rotating permanent magnet rotor quickly reaches synchronous RPM at startup. As the inductive rotor approaches or reaches synchronous RPM, the coupling between the inductive rotor and the permanent magnet rotor increases until the two rotors are coupled at the synchronous RPM and the motor transitions to efficient synchronous operation.
    Type: Application
    Filed: November 29, 2012
    Publication date: October 24, 2013
    Inventor: Louis J. Finkle
  • Publication number: 20130278095
    Abstract: A hybrid induction motor includes an inductive rotor and an independently rotating permanent magnet rotor. The inductive rotor is a squirrel cage type rotor for induction motor operation at startup. The permanent magnet rotor is variably coupled to the inductive rotor (or to a motor load) through a clutch and is allowed to rotate independently of the inductive rotor at startup. The independently rotating permanent magnet rotor quickly reaches synchronous RPM at startup. As the inductive rotor approaches or reaches synchronous RPM, the coupling between the inductive rotor and the inner permanent magnet rotor increases until the two rotors are coupled at the synchronous RPM and the motor transitions to efficient synchronous operation.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 24, 2013
    Inventor: Louis J. Finkle
  • Publication number: 20130212868
    Abstract: A method and apparatus for terminating stator windings. The apparatus includes stator winding termination disks having “U” shaped winding mouths for each group of stator winding ends. After winding the stator, the stator winding termination disks are laid over the termination end of the stator, the unterminated stator windings for one phase of the stator are placed into the “U” shaped winding mouths, the “U” shaped winding mouths are crimped over the unterminated stator windings, and pressure and heat are applied to melt insulation on the unterminated stator winding ends and form an electrical connection between the stator winding termination disks and stator windings for each phase of the stator and for common.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 22, 2013
    Inventor: Louis J. Finkle
  • Patent number: 8390162
    Abstract: A reconfigurable electric motor includes rotatable permanent magnets in a rotor, the magnets having a first position producing a weak magnetic field and a second position producing a strong magnetic field. The motor is reconfigurable from an asynchronous induction motor at startup into a synchronous motor for efficient operation. The motor includes a squirrel cage for induction motor operation at startup with the permanent magnets positioned to product the weak magnetic field to not interfere with the startup. When the motor reaches sufficient RPM, the permanent magnets rotate to produce a strong magnetic field for high efficiency synchronous operation. The permanent magnets are magnetically biased to come to rest in the weak magnetic field position and a centrifugal mechanism holds the magnets in the weak magnetic field position until sufficient RPM are reached for transition to synchronous operation.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: March 5, 2013
    Inventors: Louis J. Finkle, Andrea Furia
  • Patent number: 8294389
    Abstract: A thermally efficient liquid motion lamp maintains the proper temperature of liquids within the lamp to provide desired motion while using a minimal amount of energy. The lamp includes a submerged heater and a second heater in the base of the lamp, and an efficient non-incandescent light source for illuminating liquids in the lamp. A sensor measures the temperature of the liquids inside the lamp and the control system controls the heaters to first heat the lamp to operating temperature using the submerged heater and to maintain the temperature within operating limits at the base of the lamp using the second heater. The non-incandescent light source is preferably an LED and may be multi-color or an Ultra Violet (UV) LED cooperating with UV dyes in the liquids, but may be any highly efficient light source. The color and intensity of the LED may be controlled to follow music.
    Type: Grant
    Filed: August 28, 2010
    Date of Patent: October 23, 2012
    Inventor: Louis J. Finkle
  • Patent number: 8288908
    Abstract: A reconfigurable electric motor includes a rotor containing rotatable permanent magnets or non-magnetically conducting shunting pieces. The magnets and/or shunting pieces have a first position producing a weak magnetic field for asynchronous induction motor operation at startup and a second position producing a strong magnetic field for efficient synchronous operation. The motor includes a squirrel cage for induction motor operation at startup with the permanent magnets and/or shunting pieces positioned to product the weak magnetic field to not interfere with the startup. When the motor approaches or reaches synchronous RPM, the permanent magnets and/or shunting pieces rotate to produce a strong magnetic field for high efficiency synchronous operation.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: October 16, 2012
    Inventors: Louis J. Finkle, Andrea Furia
  • Publication number: 20120074913
    Abstract: Apparatus and method for tuning the magnetic field of windmill generators to obtain efficient operation over a broad RPM range. The windmill generator includes fixed windings (or stator) inside a rotating rotor carrying permanent magnets. The permanent magnets are generally cylindrical and have North and South poles formed longitudinally in the magnets. Magnetically conducting circuits are formed by the magnets residing in magnetic conducting pole pieces (for example, low carbon or soft steel, and/or laminated insulated layers, of non-magnetizable material). Rotating the permanent magnets, or rotating non-magnetically conducting shunting pieces, inside the pole pieces, either strengthens or weakens the resulting magnetic field to adjust the windmill generators for low RPM torque or for efficient high RPM efficiency. Varying the rotor magnetic field adjusts the voltage output of the windmill generators allowing the windmill generator to maintain a fixed voltage output.
    Type: Application
    Filed: December 1, 2011
    Publication date: March 29, 2012
    Inventor: Louis J. Finkle
  • Patent number: 8097993
    Abstract: Apparatus and method for tuning the magnetic field of brushless motors and alternators to obtain efficient operation over a broad RPM range. The motor or alternator includes fixed windings (or stator) around a rotating rotor carrying permanent magnets. The permanent magnets are cylindrical and have North (N) and South (S) poles formed longitudinally in the cylindrical magnets. The magnets reside in magnetic conducing pole pieces (for example, low carbon or soft steel, and/or laminated insulated layers, of non-magnetizable material). Rotating the cylindrical permanent magnets inside the pole pieces either strengthens or weakens the resulting magnetic field to adjust the motor or alternator for low RPM torque or for efficient high RPM efficiency. Varying the rotor magnetic field adjusts the voltage output of the alternators allowing, for example, a windmill generator, to maintain a fixed voltage output. Other material used in the rotor is generally non-magnetic, for example, stainless steel.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: January 17, 2012
    Inventors: Louis J. Finkle, Andrea Furia
  • Patent number: 8072108
    Abstract: Apparatus and method for tuning the magnetic field of brushless motors and alternators to obtain efficient operation over a broad RPM range. The motor or alternator includes fixed windings (or stator) around a rotating rotor carrying permanent magnets. The permanent magnets are generally cylindrical and have North and South poles formed longitudinally in the magnets. Magnetically conducting circuits are formed by the magnets residing in magnetic conducting pole pieces (for example, low carbon or soft steel, and/or laminated insulated layers, of non-magnetizable material). Rotating the permanent magnets, or rotating non-magnetically conducting shunting pieces, inside the pole pieces, either strengthens or weakens the resulting magnetic field to adjust the motor or alternator for low RPM torque or for efficient high RPM efficiency. Varying the rotor magnetic field adjusts the voltage output of the alternators allowing, for example, a windmill generator, to maintain a fixed voltage output.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: December 6, 2011
    Inventors: Louis J. Finkle, Andrea Furia
  • Publication number: 20110101811
    Abstract: A reconfigurable electric motor includes rotatable permanent magnets in a rotor, the magnets having a first position producing a weak magnetic field and a second position producing a strong magnetic field. The motor is reconfigurable from an asynchronous induction motor at startup into a synchronous motor for efficient operation. The motor includes a squirrel cage for induction motor operation at startup with the permanent magnets positioned to product the weak magnetic field to not interfere with the startup. When the motor reaches sufficient RPM, the permanent magnets rotate to produce a strong magnetic field for high efficiency synchronous operation. The permanent magnets are magnetically biased to come to rest in the weak magnetic field position and a centrifugal mechanism holds the magnets in the weak magnetic field position until sufficient RPM are reached for transition to synchronous operation.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Louis J. Finkle, Andrea Furia