What was the initial significant application for the superior wave spring design invented by Smalley in the late 1960s?

Answer

Bayonette Connectors

The first significant application for the wave spring was in Bayonette Connectors, where its ability to maintain consistent coupling torque was essential.

What was the initial significant application for the superior wave spring design invented by Smalley in the late 1960s?
inventionHistorydevicespringmechanism