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US 2004/0140178 A1Published application
Scraper chain conveyor for use in underground mining
OwnerElmar Wiejack-Symann, Frank-Hasse Schmidtinventors
Life of this patent
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Abstract
A drag chain conveyor is provided for use in underground mining, and comprises interconnected, profiled conveyor chutes, conveyor chains guided in the conveyor chutes, carriers attached to the conveyor chains, and at least one drive for the conveyor chains. The conveyor chains and/or the carriers are comprised at least partially of a self-extinguishing and difficult to ignite plastic or polymeric material having anti-static material properties and a high mechanical strength.
Claims7
A drag chain conveyor for use in underground mining, comprising:
- interconnected, profile conveyor chutes;
- conveyor chains guided in said conveyor chutes;
- carrier means attached to said conveyor chains, wherein at least one of said conveyor chains and said carrier means are comprised at least partially of a self-extinguishing and difficult to ignite polymeric material having anti-static material properties and a high mechanical strength;
- and
- at least one drive means for said conveyor chains.
2 more elements
Dependencies are inferred from the claim text.