4. Metal working
  5. Method of mechanical manufacture
  6. Electrical device making

John S. Schaffer

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Method of assembling rotary puffer switch

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Rotary puffer switch

Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent

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Switch operating mechanism

Electricity: circuit makers and breakers – Contact moved by sudden release of stored energy
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Switch with auxiliary biasing mechanism

Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Patent

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Profile ID: LFUS-PAI-P-1260800

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