4. Electricity: circuit makers and breakers
  5. Fluid pressure
  6. Diaphragm

James Richard Ellett

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Method of injecting pigs into a pipe

Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Reexamination Certificate

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Pipe pig injector

Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent

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Pressure switch

Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent

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Pressure switch with increased deadband

Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent

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Self-contained hydraulic ESD system

Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1526223

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