US PATENT SUBCLASS 86 / 20.15
.~ Placing, tamping, or priming charge in blast hole

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


86 /   HD   AMMUNITION AND EXPLOSIVE-CHARGE MAKING

20.1  DF  LOADING FIREWORKS AND BURSTING CHARGES {6}
20.15.~ Placing, tamping, or priming charge in blast hole

DEFINITION

Classification: 86/20.15

Placing, tamping or priming charge into blasthole:

(under subclass 20.1) Subject matter involving placement of compacting of an explosive charge into a cavity in a solid material where it is to be detonated.

(1) Note. This may involve, e.g., placement or ramming in of an explosive charge into a cylindrical hole bored into a rock quarry, etc.