Ross Lamination System


The Ross Lamination System™ is a new way to reduce core loss in an electric motor. By laminating and treating the stator and/or rotor, the motor will run cooler, be more efficient, and last longer.

The laminations are prepared in several ways: a water jetting operation, a punching or stamping operation, by laser cutting, or other manufacturing processes. The laminations are then subjected to temperature treatment before assembling. The laminations are stacked to create the stator and/or rotor. The modified stator/rotor performs better and will reduce core loss, creating a longer-lasting electric motor.




Special features

  • Improved electric motor efficiency
  • Improved electric motor performance
  • Can be manufactured for any size electric motor
  • Can change design of large electric motors
  • Steel laminates create stronger stator/rotor
  • Laminates treated after assembly
  • Runs at a cooler temperature
  • Reduces core loss
  • Extends the life of an electric motor



The Ross Lamination System™ is a way to manufacture a stator or rotor by using layers of steel, cut into identical shapes. The laminations are treated before assembling, then stacked to create the stator and/or rotor. The modified components perform better and will reduce core loss, creating a longer-lasting electric motor.



The components created using this method have been tested and proved to be a viable product. There is a prototype currently being used in a 72-passenger bus with an electric motor. See the following examples:


Example 1.     In 2015, Jasper Electric, Inc. (patent owner/family business) placed a modified stator and rotor into a commercially available 30HP, 460V NEMA frame electric motor and presented it, along with an identical unmodified motor, to a company (Advance Energy) for comparison testing. They were both subjected to an IEEE 112 Method B efficiency test and speed-torque test, along with other various testing protocols.


Comparative performances in the two motors were carried out with the following results:

  1. The modified motor did increase its full load operating efficiency by approximately 1.5 percentage points.
  2. The modified motor operated at a noticeably cooler temperature (about 17.1ºC lower) throughout the testing process.
  3. The modified motor developed noticeably more breakdown torque (506.4Nm) than the base line motor (298.1 Nm).
  4. The modified motor achieved a service factor of 1.8 while remaining within its class F insulation temperature rating.

Overall, the modifications made by Jasper Electric improved operational efficiency and thermal performances when compared to the same sample motor design.


Example 2.     In 2008, New Core, Inc. (patent owner/family business) purchased a 72-passenger, 1994 Blue Bird school bus. The shop retrofitted and upgraded an existing diesel bus to an environmentally conscious hybrid electric battery and propane powered bus. The diesel engine was removed, and in its place a propane generator was added. The automatic transmission components were moved closer to the rear axle to make room for the 120hp electric motor. This motor drives the bus at full load of 28,000 lbs. to speeds over 50 MPH. Drive train components include:

  1. A rechargeable battery bank composed of 54 six-volt lead-acid batteries that provide a total of 60kW of power at 324 volts.
  2. A propane tank that fuels the generator, providing and additional 60kW of power at 324 volts.
  3. A pair of 60hp electric motor drive controls which take the provided DC power and converts it to AC power.
  4. Other changes include a small 5hp electric motor (with modified stator and rotor), electric motor drive controls, and an auxiliary battery that powers the lights and fans. Most of the other components (wiring, transmission, key switches and buttons) are kept and used accordingly.

By using the lamination process to create the stator and rotor, the electric motor system runs cooler, is more efficient, reduces core loss, and extends the life of the motor.

Electric motors do not use fossil fuels to operate, so fuel costs are dramatically reduced. By using lithium batteries and propane, which emits the lowest amount of pollutants, this motor system is considered a green product. The ultimate goal of creating this motor system of transportation is to reduce the dependency on foreign oil, and to use solar panels and wind generators for electricity to power charging stations. By replacing large diesel engines with electric motors, but still maintaining the same level of performance, companies will save money and improve air quality.



The Ross Lamination System is covered by United States Utility Patent: 9,806,587

The Ross Lamination System is covered by United States Utility Patent: 9,906,172



The Ross Lamination System is covered by United States Utility Patent:  8,950,529



The Ross Lamination System is covered by United States Utility Patent: 8,550,196





For additional information, licensing opportunities, and a full prospectus on the Ross Lamination System  contact:




VP of Business Development