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