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BKFK Home Page | BKFK Kids | Inventors | Coolidge, William

William D. Coolidge

Vacuum Tube

  • Invented the Vacuum Tube Patent No. 1,203,495.

  • His X-ray tube-popularly called the 'Coolidge tube', completely revolutionized the generation of X-rays and remains to this day the model upon which all X-ray tubes for medical applications are patterned.

  • At General Electric, he invented ductile tungsten, the filament material still used in lamps, and worked on high-quality magnetic steel, improved ventilating fans, and the electric blanket.
 

 
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