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US RE48399

How to Make Electric Motors Run Smoother and Last Longer

A design for electric motor armatures that uses a specific ratio of winding slots to commutator bars to reduce electrical sparking and improve motor efficiency.

Statusactive

Granted2021

Expires2038

Claims23

Forward citations0

Prior art33

AssigneeBlack and Decker Inc

InventorsWei Chen, Timothy W. French, Jr. +2

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