The patent relates to an apparatus and method for excavating tunnels with electrically generated shock waves. The tunneling apparatus is comprised of a rotatable barrel for cutting a peripheral ring about a core and a bit which simultaneously bores a hole in the center of the core. The drive for the rock bit also contains electrodes which are pulsed to produce shock waves in the core to peel off a desired thickness of rock layer.

  • Supplemental Notes:
    • Government-owned invention available for licensing. NTIS Number AD-D001496/9ST, but no availability.
  • Corporate Authors:

    Department of the Navy

    Washington, DC  United States 
  • Authors:
    • Allgood, J R
  • Publication Date: 0

Media Info

  • Pagination: 5 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00094254
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: PAT-APPL-346 201 Patent
  • Files: TRIS
  • Created Date: Mar 29 1976 12:00AM