4. Motors: expansible chamber type
  5. Fluid supply through diverse paths to single expansible chamber
  6. One path includes restriction

Dennis J. Wehner

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Method and apparatus for controlling a rotary percussive hydraul

Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – One path includes restriction
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Toggle type temporary roof support for mining machinery

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
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Profile ID: LFUS-PAI-P-973402

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