4. Material or article handling
  5. Vertically swinging load support
  6. Shovel or fork type

Robert B. Donnally

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Apparatus for engaging beams

Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Clutch actuated
Patent

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Pipe racker assembly

Boring or penetrating the earth – With orienting or racking means for unconnected tools or...
Patent

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Power shovel crowd drive assembly

Material or article handling – Vertically swinging load support – Shovel or fork type
Patent

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Telescopic drilling derrick apparatus

Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Tilts relative to base
Patent

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Vertically folding service arm for a movable platform...

Hydraulic and earth engineering – Marine structure or fabrication thereof – With horizontally movable work deck
Reexamination Certificate

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Profile ID: LFUS-PAI-P-370974

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