Accession Number : ADD001790

Title :   Method for Stress Wave Drilling.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Allgood,Jay R ; Odello,Robert J

Report Date : 06 May 1975

Pagination or Media Count : 4

Abstract : The patent relates to a method and apparatus for drilling a hole in rock. An open-ended, hardened, drilling head containing a means for creating high-intensity stress waves capable of spalling rock is used to drill the hole. A fluid is passed through the drilling head which removes the spalled rock from the drilling head.

Descriptors :   *Drilling, *Drills, *Patents, Pulses, Shock waves, Stress waves, Electric discharges, Hydraulic equipment

Subject Categories : Civil Engineering
      Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE