4. Material or article handling
  5. Self-loading or unloading vehicles
  6. Conveyor

Martin Jay Hapeman

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Lifting force responsive load control for electrically propelled

Prime-mover dynamo plants – Electric control – Traction
Patent

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Rail transportable ramps for loading semi-trailers on trains

Material or article handling – Self-loading or unloading vehicles – Conveyor
Patent

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Tractive effort control method and system for recovery from a wh

Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Slipping and/or racing control for electric motors
Patent

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Profile ID: LFUS-PAI-P-853016

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