1976-06-22
1978-01-24
Taylor, Dennis L.
61 45D, E02D 1500
Patent
active
040696766
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.
REFERENCES:
patent: 3791155 (1974-02-01), Lockwood
patent: 3831384 (1974-08-01), Kempster
patent: 3872677 (1975-03-01), Linke et al.
patent: 3943723 (1976-03-01), Evans et al.
Coal Industry (Patents) Ltd.
Taylor Dennis L.
Wray James C.
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