Nikola Tesla Patent #4 – Regulator for dynamo-electric machines – US 336961
















Patent Information
Publication number: US336961 A
Publication type: Grant
Publication date: Mar 2, 1886
Filing date: May 18, 1885
Inventors: Nikola Tesla
Original Assignee: The Tesla Electric Light And Manufacturing Company

Critical Features disclosed in this patent
1. Two main brushes connected to helices coil ends;
2. Intermediate point branch shunt connection for third brush

Note: Nikola Tesla was an inventor who obtained around 300 patents worldwide for his inventions. Some of Tesla’s patents are not accounted for, and various sources have discovered some that have lain hidden in patent archives. There are a minimum of 278 patents issued to Tesla in 26 countries that have been accounted for. Many of Tesla’s patents were in the United States, Britain, and Canada, but many other patents were approved in countries around the globe. Many inventions developed by Tesla were not put into patent protection.