Like Rateau in France, Moss made superchargers and turbochargers.

-In the illustration below we see a Moss supercharger mounted at the front of a Liberty V-12 engine.

"Liberty engine with Moss supercharger"

From Appendix 6: American leader in the application of superchargers and turbochargers for aircraft engines.

“Sanford A. Moss with designed material” (PiP)

-Sanford A. Moss managed to increase the airplane speed as well as the maintenance of the engine power at high altitudes. Therefore he designed high-performance centrifugal compressors that compressed the taken air to sea level pressure, and they even increased it above the environmental pressure, reaching values of almost double at times.

"Schematic of the complete turbocharger cycle"