System for storing potential energy and method for producing such a system
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United States of America Patent
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Feb 27, 2018
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app pub date -
Aug 5, 2011
filing date -
Aug 19, 2010
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Abstract
A system for storing potential energy includes a hydraulic cylinder, a mass to be lifted, and a sealing ring at the edge of the mass to be lifted. The mass to be lifted is a solid rock mass in the form of a cut-out solid rock. The hydraulic cylinder is formed by the cavity between surrounding rocks and the cut-out solid rock. The cavity is sealed with respect to the surrounding rocks by the sealing ring. A method for producing such a system is also provided.
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