4. Tool driving or impacting
  5. Drive controlled by relative axial movement of tool

Richard N. Hodges

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Hydraulic impact tool

Tool driving or impacting – Drive controlled by relative axial movement of tool
Patent

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Internal neutral positioning spring for railcar shock absorber

Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Reexamination Certificate

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Rail car double acting piston shock absorber

Railway draft appliances – Cushioned – Continuous
Patent

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Railcar cushion unit

Railway draft appliances – Cushioned – Springs
Patent

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Railcar shock absorber with neutral position

Railway draft appliances – Cushioned – Springs
Patent

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Profile ID: LFUS-PAI-P-398167

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