William W Marshall

Title: The Innovative Contributions of William W. Marshall

Introduction: William W. Marshall, an inventive mind based in Centerville, OH, is known for his innovative approach to protecting electric motors used in liquid pumps. With one patent to his name, he has made significant strides in enhancing the reliability and performance of electric motor systems.

Latest Patents: Marshall's notable patent, titled "Pump and Electric Motor Protector," features an advanced electrical circuit designed to provide electrical energy to an electric motor that operates a liquid pump. This system is uniquely designed to be submerged in the liquid being pumped. The circuit is capable of sensing the phase angle between the current and voltage supplied to the motor. Notably, when the phase angle indicates that the motor is operating without a load, the circuit automatically deenergizes the motor, thus protecting both the motor and pump from potential damage. In addition, the circuit accounts for the presence of harmonics in the motor’s current flow, allowing it to deliver a filtered signal that accurately reflects the fundamental frequency, thereby ensuring an accurate measurement of the motor's loading. Furthermore, it provides an efficient means to compensate for variations in line voltage, preventing inaccurate indications of motor loading changes.

Career Highlights: Active in the field of electrical engineering, William W. Marshall has served as an integral member of the team at Spring Valley Associates, where he collaborates on various projects aimed at improving electrical systems. His patent underscores a commitment to innovation and safety in electrical applications, reflecting his engineering proficiency.

Collaborations: As a dedicated professional, Marshall has worked alongside fellow engineer Lamar D. Springer. Their collaboration at Spring Valley Associates has facilitated advancements in electrical solutions, with a focus on efficiency and protection in electrical applications.

Conclusion: William W. Marshall's contributions to the field of electrical engineering, particularly through his patent for the Pump and Electric Motor Protector, showcase his innovative spirit and technical expertise. His work not only enhances the functionality of electric motors within liquid pumping systems but also emphasizes the importance of safety and performance in engineering solutions. Through his ongoing efforts and collaborations, Marshall continues to influence the landscape of electrical innovations.