Inverted molded commutators

Details Inverted molded commutators Inverted molded commutators

1982-12-29

1984-11-06

Skudy, R. M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, 310 45, 310 67R, 310235, H02K 1300

Patent

active

044814399

ABSTRACT:
A molded commutator is made up of segments arranged in a ring with their brush contact surfaces facing inwardly and forming a cylindrical shape. A matrix of plastic is molded between and around the outside of the segment ring in order to separate the segments electrically and to hold them in the ring configuration. A reinforcing metal casing serves to contain the commutator against breaking up due to centrifugal forces experienced during rotation. An alternate embodiment uses metal bands embedded within the matrix for this purpose.

REFERENCES:
patent: 996895 (1911-07-01), Sutton
patent: 1253265 (1918-01-01), McKeown
patent: 1631461 (1927-06-01), Bonsieur
patent: 3182217 (1965-05-01), Quinn
patent: 3554868 (1970-12-01), Bates
patent: 3557325 (1971-01-01), Hansen
patent: 3864821 (1975-02-01), Ito et al.
patent: 3870914 (1975-03-01), Walker
patent: 3892987 (1975-07-01), Noodleman
patent: 4384386 (1983-05-01), Dorner

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