Commutator motor and improved brush construction for use in port

Details Commutator motor and improved brush construction for use in port Commutator motor and improved brush construction for use in port

1984-10-26

1986-06-17

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310244, H02K 1310, H01R 3938

Patent

active

045958513

ABSTRACT:
A commutator motor specifically designed for incorporation into portable machine tools such as a hand drill includes a stator winding arranged in a machine housing, and a rotor winding including a rotor shaft with a commutator ring journalled in the housing. Electrical connection between the commutator and current supply is ensured by multiple pairs of diametrically opposed carbon brushes of opposite polarity, the brushes being supported in the machine housing such that each respective pair of brushes can be separately brought into contact with the commutator by a lever capable of engaging the respective pairs of brushes. Various holder configurations support the brushes.

REFERENCES:
patent: 594745 (1897-11-01), Kennedy
patent: 777709 (1904-12-01), Woehr
patent: 942264 (1909-12-01), Kimble
patent: 2802960 (1957-08-01), Baker
patent: 2862124 (1958-11-01), Huber

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