Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1989-03-22
1990-01-09
Broome, H.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335164, 335186, 335254, 361 42, H01H 8302, H01H 5058, H02H 316
Patent
active
048931012
ABSTRACT:
A resettable circuit interrupter in a ground fault detector circuit utilizes a housing which slideably retains a solenoid coil wound on a bobbin. A contact carrier is attached to the bobbin and one or more moveable contacts are provided on the carrier opposite a corresponding set of fixed contacts. A plunger slides through a central passageway in the solenoid coil. The bobbin is spring biased so that the contacts are in a normally open position. In a manually resettable version, when the solenoid coil conducts a predetermined current, manually activating the plunger causes the plunger to magnetically couple to a footplate attached to the bobbin. When a plunger spring returns the plunger to its original position, the bobbin and contact carrier move with it and the contacts are closed. When the solenoid coil conducts insufficient current to magnetically couple the plunger and footplate, the bias springs maintain the contacts in the normally open position. In an electrically resettable version the contacts may be reset by electromagnetic energy alone, without manual activation of the plunger.
REFERENCES:
patent: 3568114 (1971-03-01), Cherry et al.
patent: 3973951 (1975-03-01), Blake
patent: 3987266 (1976-10-01), Betz
patent: 4010432 (1977-03-01), Klein et al.
patent: 4048599 (1977-09-01), Groth
patent: 4075584 (1978-02-01), Castonguay et al.
patent: 4086643 (1978-04-01), Jacobs
patent: 4209762 (1980-06-01), Samborski et al.
patent: 4329669 (1982-05-01), Krasser et al.
patent: 4564730 (1986-11-01), Tomizu et al.
patent: 4567456 (1986-01-01), Legatti
patent: 4595894 (1986-06-01), Doyle et al.
patent: 4620171 (1986-10-01), Bagalini
patent: 4719437 (1988-01-01), Yun
Broome H.
Ericson Manufacturing Company
Fay Regan J.
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