M.B.B. type contact arrangement for an electromagnetic relay

Details M.B.B. type contact arrangement for an electromagnetic relay M.B.B. type contact arrangement for an electromagnetic relay

1983-04-26

1985-05-28

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Multiple contact type

335133, 200283, 200 1TK, H01H 6702, H01H 128

Patent

active

045203334

ABSTRACT:
In an M.B.B. type relay, a contact spring comprises a pair of flat spring parts integral at the base of the spring and separate at their free ends, each of which cooperates with a fixed contact. An actuating card drives both spring parts in the same direction and has a stepped portion so dimensioned that a first contact formed by one of the spring parts with one of the fixed contacts is closed before the second contact formed by the other spring part with the other fixed contact is opened.

REFERENCES:
patent: 2682584 (1954-06-01), Knapp
"Engineers' Relay Handbook", 3rd edition, edited 1980 by National Association of Relay Manufacturers of Elkhart, Indiana, p. 6.

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