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Sprague Electric Company was an electronic component maker founded by Robert C. Sprague in 1926. Sprague was best known for making a large line of capacitors used in a wide variety of electrical and electronic in commercial, industrial and military/space applications.
Founder of Sprague Electric, manufacturer of capacitors Robert C. Sprague (August 2, 1900 – September 27, 1991) was the son of Frank J. Sprague and Harriet Sprague. Sprague founded Sprague Electric (originally Sprague Specialties Company), Quincy, Massachusetts in 1926, and served as president from 1926-1953 and chief executive from 1953-1971.
By 1886, Sprague's company had introduced two important inventions: a constant-speed, non-sparking motor with fixed brushes, and regenerative braking, [6]: 96 a method of braking that uses the drive motor to return power to the main supply system. His motor was the first to maintain constant speed under varying load.
A typical motor start capacitor. A motor capacitor [1] [2] is an electrical capacitor that alters the current to one or more windings of a single-phase alternating-current induction motor to create a rotating magnetic field. [citation needed] There are two common types of motor capacitors, start capacitor and run capacitor (including a dual run ...
An electrolytic capacitor is a ... the inventions for manufacturing commercially viable tantalum electrolytic capacitors came from researchers at the Sprague ...
An electrostatic motor or capacitor motor is a type of electric motor based on the attraction and repulsion of electric charge. An alternative type of electrostatic motor is the spacecraft electrostatic ion drive thruster where forces and motion are created by electrostatically accelerating ions.