Mine packing equipment
AssigneeCoal Industry (Patents) Limited
InventorNorman Albert Plumpton
Life of this patent
Estimating the term…
Abstract
Equipment for retaining flowable material within a packhole has two connected sections defining two boundaries of the packhole. The sections comprise a base and a roof engaging assembly for engaging the mine roof. Each section has a flexible sheet connected to the base and roof assembly.
Claims7
Mine packing equipment for retaining flowable packing material within a packhole comprising two connected sections for defining boundaries of the packhole, each section including a base, a roof engaging assembly for engaging the mine roof, a telescopic guide arrangement connected intermediate the base and the roof engaging assembly, a piston and cylinder device connected for controlling movement of the telescopic guide arrangement, and a flexible sheet interconnected along its upper and lower edges to the roof engaging assembly and the base, respectively.
Dependencies are inferred from the claim text.