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US 8,618,680 B2Granted
Spaced-apart cable modules in wellbore energy storage and retrieval
AssigneeUniversity of Southern California
InventorBehrokh Khoshnevis
Life of this patent
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Abstract
A system for storing and retrieving energy may include a cable and a weight connected to the cable. A plurality of cable modules may be attached at spaced-apart locations to the cable above the weight. Each cable module may prevent the cable above and below the cable module from coming in contact with a neighboring stationary wall. A hoist may controllably raise and lower the weight by sequentially grabbing each neighboring cable module.
Claims20
A system for storing and retrieving energy comprising:
- a cable;
- a weight connected to the cable;
- a plurality of cable modules attached at spaced-apart locations to the cable above the weight, each cable module being configured to prevent the cable above and below the cable module from coming in contact with a neighboring stationary wall;
- and
- a hoist configured to controllably raise and lower the weight by sequentially grabbing each neighboring cable module.
2 more elements
Dependencies are inferred from the claim text.