ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,884, issued on Aug. 5, was assigned to HYPERTUNNEL IP Ltd. (Basingstoke, Great Britain).
"Method and system of constructing an underground tunnel" was invented by Stephen Jordan (Basingstoke, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Long tunnels of many kilometres are likely to pass through a range of geologies which may cause problems. The present invention seeks to overcome the disadvantages of the prior art by: drilling a first bore 10 along a first predetermined path, the first bore having a length of at least 25 m; drilling a plurality of second bores 20 along respective second predetermined paths, each substantially parallel...