Patent ID: 7764499

Claim:
An apparatus comprising: a closed-loop system, said closed-loop system comprising a cavity and a pipe, said cavity comprising flexible sidewalls, said pipe having an inlet end and an outlet end connected to said cavity; a liquid metal alloy confined within said closed-loop system wherein a first portion of said liquid metal alloy is distributed in said cavity and a second portion of said liquid metal alloy is distributed in said pipe; and an electromagnet disposed around said flexible sidewalls of said cavity, said electromagnet turned on to attract said first portion of said liquid metal alloy in said cavity to expand said flexible sidewalls to induce said second portion of said liquid metal alloy to enter said cavity from said inlet end of said pipe within said closed-loop system, said electromagnet turned off to repel said liquid metal alloy in said cavity to contract said flexible sidewalls and to induce a third portion of said liquid metal alloy to exit said cavity to said outlet end of said pipe.