Patents applied at Tesla Electric Light & Manufacturing

In 1885 Tesla applied his first patents:

• US334,823 - Commutator for Dynamo Electric Machines - 1886 January 26 (Filed May 18, 1885) - Elements to prevent sparking on dynamo-electric machines; Drum-style with brushes.

• US335,786 - Electric Arc Lamp - 1886 February 9 (Filed May 18, 1885) - Arc lamp with carbon electrodes controlled by electromagnets or solenoids and a clutch mechanism; Corrects earlier design flaws common to the industry.

• US350,954 - Regulator for Dynamo Electric Machines - 1886 October 19 - Automatic regulation of energy levels; Mechanical device to shift brushes.

In 1886, after Tesla had founded his company, the US Patent Office issued the following patents to him (pending to review):

• US335,787 - Electric Arc Lamp - 1886 February 9 - Arc lamp's automatic fail switch when arc possesses abnormal behavior; Automatic reactivation.

 

• US336,961 - Regulator for Dynamo Electric Machines - 1886 March 2 - Two main brushes connected to helices coil ends; Intermediate point branch shunt connection for third brush.

• US336,962 - Regulator for Dynamo Electric Machines - 1886 March 2 - Auxiliary brush[es] shunting a portion or whole of the field helices coil; Regulates energy flow; Adjustable level of current.

• US359,748 - Dynamo Electric Machine - March 22, 1887

• US381,968 - Electro Magnetic Motor - May 1, 1888 (Filed October 12, 1887) - First patent on the Alternating Current induction moto.

• http://en.wikipedia.org/wiki/Tesla_Electric_Light_%26_Manufacturing