Company Filing History:
2 out of 46 
1 out of 3 
1 out of 1 Years Active: 1982-2003
Title: The Innovations of William M Hallidy
Introduction
William M Hallidy is a notable inventor based in Glendora, California. He holds a total of 10 patents, showcasing his significant contributions to the field of electrical engineering. His work primarily focuses on advanced motor systems, which have applications in various industries.
Latest Patents
Among his latest patents is the "Permanent magnet brushless electric motor system and method of using same." This invention features a brushless motor-generator with a stator that includes armature windings for polyphase operation. The rotor is equipped with at least one pair of permanent magnet poles. A controller is designed to vary the magnitude of the alternating-current voltage applied to the armature windings. This innovation allows for improved control of the operating motor power factor, optimizing the rotor magnetic field for better torque performance with minimal torque pulsations across various load conditions.
Another significant patent is the "Direct current electrical motor system and method of using same." This system includes a motor with an armature DC transducer linked to an armature current controller through a sensor/detector arrangement. This setup effectively manages the armature current. Additionally, a field DC transducer is connected to a field current controller, which is also facilitated by a sensor/detector arrangement to control the field current. An armature-field comparator is integrated to assist in managing the field current, particularly when the motor armature windings are short-circuited.
Career Highlights
Throughout his career, William M Hallidy has worked with various companies, including Western Gear Corporation. His experience in these organizations has contributed to his expertise in developing innovative motor systems.
Collaborations
William has collaborated with notable individuals in his field, including Vance E Bolding and Donald P Shutt. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
William M Hallidy's contributions to electrical engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing motor technology. His work continues to influence the industry and inspire future inventors.