Patent classifications
E
FIXED CONSTRUCTIONS
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E21
EARTH OR ROCK DRILLING; MINING
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E21D
SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
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23/00
Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
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E21D23/04
Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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E21D23/0409
Aligning or guiding means for the supports or for the constitutive parts of the supports
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E21D23/0409

Roof support connector
10914170 · 2021-02-09 · ·

A connector for coupling a plurality of underground roof supports, each roof support including a canopy. The connector includes a guide configured to be coupled to one of the roof supports, and an actuator having a bore and a rod at least partially positioned in the bore. An end of the rod is slidably coupled to the guide. A cable has a first end coupled to the end of the rod and a second end adapted for connection to another of the roof supports.

ROOF SUPPORT CONNECTOR
20200131906 · 2020-04-30 ·

A connector for coupling a plurality of underground roof supports, each roof support including a canopy. The connector includes a guide configured to be coupled to one of the roof supports, and an actuator having a bore and a rod at least partially positioned in the bore. An end of the rod is slidably coupled to the guide. A cable has a first end coupled to the end of the rod and a second end adapted for connection to another of the roof supports.