4. Electricity: circuit makers and breakers
  5. Interlocking
  6. Between plural switches

James E. Ferree

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Bi-metal trip unit for a molded case circuit breaker

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Bi-metal trip unit for a molded case circuit breaker

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Reexamination Certificate

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Circuit breaker with movable main contact multi-force-level bias

High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Magnetic blowout
Patent

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Drawout and interlock assembly for molded case circuit breakers

Electricity: circuit makers and breakers – Interlocking – Between plural switches
Patent

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External actuator interlock mechanism for circuit breaker

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Reexamination Certificate

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Profile ID: LFUS-PAI-P-930642

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