4. Brakes
  5. Operators
  6. Automatic

Earl R. Johnson

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Braking system for cable spooling drums

Brakes – Position adjusters – Equalizers
Patent

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Hydraulic elevating ramp

Implements or apparatus for applying pushing or pulling force – Inclined plane lifter
Patent

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Multiple biscuit clutch or brake

192 clutches and power-stop control – Clutches – Operators
Patent

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Multiple biscuit clutch or brake with circulated immersion cooli

192 clutches and power-stop control – Elements – Lubricating – insulating – or cooling
Patent

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Rotary drive disc brake for drawworks

Brakes – Operators – Automatic
Patent

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Profile ID: LFUS-PAI-P-392683

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