Patents

LE engineers solved the decades-old challenge of implementing the advanced material of amorphous irons into rotating electric machines through cost-effective techniques. Eventually, most rotating electric machines can benefit from the advantages of variable and high frequencies which will drive increase efficiency and smaller machine sizes. Thanks to this history of innovation, LE has built a strong and growing portfolio of more than 24 U.S. and international patents.

The manufacture of our patented stators positions LE as the leading technology company and manufacturer of amorphous iron, brushless rotating electric machines.

This gives customers the assurance of consistent quality, dependable supply, short turnarounds and value.

High-Intensity Discharge Lighting System and Alternator Power Supply

Patent number: 7372185 | Filing date: Feb 17, 2007 | Issue Date: May 13, 2008

Abstract: A high intensity lighting system comprises a plurality of high intensity discharge lamps electrically connected to a polyphase alternator and a prime mover mechanically connected to the alternator. An inherent impedance characteristic of the alternator permits the lamps to be reliably started and energized without any separate ballast or comparable impedance element. The alternator comprises a stator having teeth extending from a backiron. The teeth consist of the alternator phases, and the coils encircle the respective teeth of each pair and are wound in opposite sense and connected in series.

Soft-Metal Electromechanical component and Method of Making Same

Patent number: 7258759 B2 | Filing date: Oct 28, 2005 | Issue Date: Aug 21, 2007

Abstract: A process and adsorbent for removing contaminants from silicone based solvents is disclosed. The process provides for cleaning a solvent for reuse, and regeneration of the adsorbent. The adsorbents are for adsorbing organic and inorganic compounds that have accumulated in the silicone solvents.

Efficient High-Speed Electric Device using Amorphous, Nanocrystalline, or Non-Grain-Oriented Fe-Based Materials

Patent number: 7230361 | Filing date: May 25, 2006 | Issue Date: Jun 12, 2007

Abstract: The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core made from advanced low-loss material. In preferred embodiments, the electric device is an axial airgap-type configuration. The invention provides an electric device having a high pole count that operates at high commutating frequencies, with...

Stator Coil Arrangement for an Axial Airgap Electric Device Including Low-Loss Materials

Patent number: 7190101 | Filing date: Nov 2, 2004 | Issue Date: Mar 13, 2007

Abstract: A dynamoelectric, rotating electric machine includes a stator assembly that includes stacked stator coil windings. The machine is preferably a polyphase, axial airgap device. Improved slot filling results from the stacked stator coil configuration. Device performance capability is thereby increased. The stator assembly of the electric device has a magnetic core made from...

High-Intensity Discharge Lighting System and Alternator Power Supply

Patent number: 7180216 | Filing date: Dec 18, 2004 | Issue Date: Feb 20, 2007

Abstract: A high intensity lighting system comprises a plurality of high intensity discharge lamps electrically connected to a polyphase alternator and a prime mover mechanically connected to the alternator. An inherent impedance characteristic of the alternator permits the lamps to be reliably started and energized without any separate ballast or comparable impedance element...

Magnetic Core for Stationary Electromagnetic Devices

Patent number: 7148782 | Filing date: Apr 26, 2004 | Issue Date: Dec 12, 2006

Abstract: An energizable magnetic core for use in an inductor or a transformer includes a plurality of legs extending from the back yoke. The back yoke is formed in a loop arranged to provide a magnetic circuit. Each of the plurality of legs have a first end adjacent to the back yoke and a second end extending away from the back yoke. With the legs positioned upon the back yoke, a cover yoke is...

Efficient Axial Airgap Electric Device Having a Frontiron

Patent number: 7105975 | Filing date: Oct 5, 2004 | Issue Date: Sep 12, 2006

Abstract: A rotating, dynamoelectric machine, such as an electric motor, a generator, or a regenerative motor, comprises a stator assembly that includes a backiron section, a plurality of stator tooth sections, and a frontiron. The dynamoelectric machine has an axial airgap-type configuration. In addition, the electric machine has a high pole count that operates at high commutating frequencies, with high efficiency, high power density and reduced heating in the rotor...

Efficient High-Speed Electric Device using Amorphous, Nanocrystalline, or Non-Grain-Oriented Fe-Based Materials

Patent number: 7067950 | Filing date: Jan 30, 2004 | Issue Date: Jun 27, 2006

Abstract: The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core made from advanced low-loss material. In preferred embodiments, the electric device is an axial airgap-type configuration. The invention provides an electric device having a high pole count that operates at high commutating frequencies, with high efficiency and high power density. Advanced low-loss materials exploited by the present invention include amorphous metals, nanocrystalline metals, and optimized Si—Fe alloys.

Rotational Misalignment of Stators in an Axial Airgap Electric Devices Comprising Low-Loss Materials

Patent number: 7034427 | Filing date: Mar 31, 2006

Abstract: An axial gap dynamoelectric machine comprises first and second stators disposed coaxially with an intermediate rotor. The stators are selectively aligned with an axial offset between the positions of their respective teeth and slots. The stators comprise toroidal cores having laminated layers composed of a material selected from the group consisting of amorphous and nanocrystalline metals and optimized Fe-based alloy. Optionally, the machine further comprises misalignment means for adjusting the offset of the stators...

Soft-Metal Electromechanical component and Method of Making Same

Patent number: 7018498 | Filing date: Jun 11, 2003 | Issue date: Mar 28, 2006

Abstract: A three dimensional amorphous metal mass suitable for milling is formed wrapping amorphous metal ribbon into a three dimensional shape and then applying adhesive to the three dimensional shape. The adhesive permeates the three dimensional shape. The adhesive is then cured. The three dimensional shape is mechanically contained in three dimensions. If the amorphous metal mass is made as a toroid, then it could be processed into a stator. The stator would then be suitable for use in very high frequency electric motors.

Electric motor or generator

Patent number: 6407466 | Filing date: May 29, 2001 | Issue date: Jun 18, 2002

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric motor or generator

Patent number: 6259233 | Filing date: Oct 6, 2000 | Issue date: Jul 10, 2001

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric motor or generator

Patent number: 6154013 | Filing date: Mar 3, 2000 | Issue date: Nov 28, 2000

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric motor or generator

Patent number: 6049197 | Filing date: Jul 31, 1999 | Issue date: Apr 11, 2000

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric Motor or Generator Having Amorphus Core Pieces being Individually Accomodated in a Dielectric Housing

Patent number: 5982070 | Filing date: Mar 23, 1998 | Issue date: Nov 9, 1999

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a plurality of rotor arrangements and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric Motor or Generator Having Amorphus Core Pieces being Individually Accomodated in a Dielectric Housing

Patent number: 5986378 | Filing date: Nov 3, 1998 | Issue date: Nov 16, 1999

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric Motor or Generator Having Laminated Amorphus Metal Core

Patent number: 5903082 | Filing date: Jul 3, 1998 | Issue date: May 11, 1999

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric Motor or Generator

Patent number: 5814914 | Filing date: Nov 3, 1997 | Issue date: Sep 29, 1998

A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...

Electric Motor or Generator

Patent number: 5731649 | Filing date: Dec 27, 1996 | Issue date: Mar 24, 1998

Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as...