专利名称：Relay coil with open washer发明人：CRESSMAN; ROBERT C.申请号：US51757974申请日：19741023公开号：US3895333A公开日：19750715
摘要：A relay switch is activated to a stay-on position or to a stay-off position byalternative operation of two axially aligned solenoid coils. The coils are wound on a singlespool having two coil bays separated by a spacer. The spacer divides the spool into thetwo bays and contains a disc of magnetic material to keep the two magnetic circuitsseparated. The spool for prior art solenoid pairs were made up of separate spools whichhad to be assembled or had an insert molded magnetic disc and such spools weredifficult and costly to produce. Now a two bay is first molded separately and themagnetic disc is then mounted to the spool center to complete and separate the
magnetic circuits. The improved magnetic disc is in the form of a split ring which is openedat the split and which can be closed about and around a hollow core of the spool andabout a magnetic plunger within the hollow core.
申请人：GENERAL ELECTRIC COMPANY
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