US 11,655,680 B2
Tunneling for underground power and pipelines
Troy Anthony Helming, Richmond, CA (US)
Assigned to ArcByt, Inc., San Francisco, CA (US)
Filed by ArcByt, Inc., Richmond, CA (US)
Filed on Sep. 13, 2021, as Appl. No. 17/473,279.
Application 17/473,279 is a continuation of application No. 16/813,214, filed on Mar. 9, 2020, granted, now 11,142,957.
Application 16/813,214 is a continuation of application No. 15/814,311, filed on Nov. 15, 2017, granted, now 10,584,585, issued on Mar. 10, 2020.
Claims priority of provisional application 62/422,539, filed on Nov. 15, 2016.
Prior Publication US 2021/0404261 A1, Dec. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 7/15 (2006.01); E21D 9/10 (2006.01); E21B 7/14 (2006.01); E21B 4/16 (2006.01)
CPC E21B 7/15 (2013.01) [E21B 4/16 (2013.01); E21B 7/14 (2013.01); E21D 9/1073 (2013.01); E21D 9/108 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tunnel boring system, comprising:
a propulsion system;
a torch support structure carried by the propulsion system;
a set of plasma torches:
carried by the torch support structure;
configured to gasify a first portion of subterranean material from a face of a tunnel; and
configured to melt up to 60% of a second portion of subterranean material from the face of the tunnel to form a vitrified-rock wall lining the tunnel;
a high-powered LED light system; and
a set of high-definition video cameras.