This inventor holds 7 USPTO granted patents. Top assignees: Canadian General Electric Company Limited, General Electric Canada, Inc., General Electric Copmay. Active years: 1984-2003.
Company Filing History:
3 out of 94 
3 out of 45 
1 out of 1 Years Active: 1984-2003
Title: Innovations of Inventor James Harold Ferguson
Introduction
James Harold Ferguson, a notable inventor based in Peterborough, Canada, has made significant contributions to the field of engineering through his innovative patents. With a total of seven patents to his name, Ferguson's inventions demonstrate a strong focus on improving machinery performance and efficiency, particularly in the domains of thrust bearings and dynamoelectric machine design.
Latest Patents
Among his most recent patents is a groundbreaking thrust bearing for rotating machines. This invention features a rotating ring and a bearing shoe designed for a non-filled oil chamber, which allows for efficient oil flow through the bearing shoe. The oil not only cools the bearing shoe but also maintains lubrication between the shoe and the rotating ring. The design reduces bearing losses by eliminating the swirling of the oil bath and facilitates easier servicing, as it allows for inspection without the encumbrance of oil surrounding the bearing shoe. The thrust bearing also includes a secondary oil inlet to serve as a backup lubrication source, enhancing reliability.
Another significant patent is for a dynamoelectric machine rotor ventilation system. This invention incorporates a stator member, a rotor member, and two shrouds mounted adjacent to the rotor’s end portions. These shrouds create radial inlet and outlet paths that enhance gas flow efficiency and minimize windage loss. The design innovatively uses fan motors at both the inlet and outlet to direct gas flow, allowing the system to reclaim energy and improve overall machine operation.
Career Highlights
Ferguson's career includes notable associations with leading companies in the engineering sector. He worked with General Electric Canada, Inc. and Canadian General Electric Company Limited, where he likely honed his skills and developed his inventive capabilities. His professional background has undoubtedly contributed to the success of his patents.
Collaborations
Throughout his career, Ferguson collaborated with other talented professionals in the field, including Duncan T. Bath and Robert Henry Rehder. These collaborations likely enriched his innovative endeavors and provided a platform for sharing ideas and advancing technology.
Conclusion
James Harold Ferguson's contributions to the field of engineering through his innovative patents reflect his commitment to enhancing the functionality and efficiency of machinery. His work on thrust bearings and dynamoelectric machine ventilation systems not only showcases his inventive prowess but also underlines the importance of innovation in engineering. As he continues to inspire future inventors, Ferguson's legacy remains a testament to the power of creativity and collaboration in the pursuit of technological advancements.