The Spring Return Mechanism was originally a four part assembly. It utilized zinc die-cast, powdered metal, a clock spring, and metal stamped components. The inclusion of two types of metal in the assembly caused the zinc to deteriorate more quickly than the other metals.
We replaced the zinc with a steel component, and created a unique assembly method to house all components. We also eliminated one part of the former assembly. Product cycle performance was drastically improved without zinc deterioration.
APD Story Series