This inventor holds 30 USPTO granted patents, primarily in Bearing Technology. Top assignees: Reliance Electric Industrial Company, Reliance Electric Technologies, LLC, Reliance Electric Company. Active years: 1978-2014.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Mishawaka, IN (US) (1978)
- Greenville, SC (US) (1987 - 2014)
Company Filing History:

Years Active: 1978-2014
Areas of Expertise:
Title: Innovations of Donald L Nisley in Synchronous Motor Technology
Introduction
Donald L Nisley is a notable inventor based in Greenville, SC, who has made substantial contributions to the field of motor technology, with a remarkable portfolio of 30 patents. His innovative designs have significantly advanced the functionality and efficiency of synchronous motors.
Latest Patents
Among his latest patents, Nisley has developed a unique **synchronous motor with a soft start element**, which is strategically formed between the motor rotor and the motor output shaft. This design enables the motor to synchronize loads that have high inertia and/or high torque. The line-start synchronous motor boasts a housing, a rotor shaft, and an output shaft. The soft-start coupling portion is pivotal as it allows the synchronous motor to achieve synchronous operation, driving loads at near synchronous speed during normal steady-state operation. This innovation is particularly beneficial when the motor is connected to loads that would typically hinder normal synchronous operation.
Another notable patent focuses on an **elastomeric coupling having a clamp ring with flanges** that provide desired torsional stiffness characteristics. This coupling efficiently transmits torque between approximately aligned shafts while maintaining a center axis. The elastomer material used in the center element, along with the strategically designed clamp rings, ensures robust performance and adaptability, allowing for tailored torsional stiffness based on application requirements.
Career Highlights
Nisley has demonstrated his expertise while working at reputable firms such as **Reliance Electric Industrial Company** and **Reliance Electric Technologies, LLC**. His significant contributions in these companies have helped pave the way for numerous advancements in electric motor technology.
Collaborations
Throughout his career, Nisley has collaborated with notable colleagues, including **James E Mickelson** and **Roman M Wajda**. These partnerships have fostered an environment of innovation, leading to the development of cutting-edge technologies in their field.
Conclusion
Donald L Nisley's inventive spirit and engineering proficiency have established him as a prominent figure in the area of synchronous motor technology. His patents continue to influence the industry by enhancing the performance and efficiency of motor systems. Through his collaborations and career achievements, he exemplifies the profound impact a dedicated inventor can have on innovation and technology advancement.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile