Accession Number : ADD001495

Title :   Stress Wave Drill.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

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

Report Date : 08 Oct 1974

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 :   *Rock, *Drilling, *Patents, Boreholes, Shock waves, Pulses, Electric power, Hydraulic equipment

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE