Expandable explosive and stemming cartridge

Details Expandable explosive and stemming cartridge Expandable explosive and stemming cartridge

1984-04-12

1985-01-08

Nelson, Peter A.

Ammunition and explosives

Blasting

Borehole loading

102323, 102324, 102333, F42D 300

Patent

active

044921659

ABSTRACT:
An explosive or stemming package is provided which is self-retaining in vertical or inclined up-holes in stable rock. The package containing a flowable material, for example, slurry explosives, consists of a thin-walled cylindrical bag having at least one longitudinal, external pleat held closed by means of an adhered overcovering or tape. With the package held in position in the up-hole by a push rod, the tape is severed by means of a rip cord allowing the pleat to open. The slumping contents press the package closely against the borehole wall for secure retention without additional support. Improved coupling of the explosive charge to the rock is also provided giving enhanced blasting efficiency.

REFERENCES:
patent: 1220208 (1917-03-01), Ellis
patent: 2966855 (1961-01-01), Barco
patent: 3087425 (1963-04-01), Griffith
patent: 3122096 (1964-02-01), Wick
patent: 3323455 (1967-06-01), Griffith
patent: 3783787 (1974-01-01), Thornley et al.
patent: 3806025 (1974-04-01), Marshall

Affiliated with

Also associated with

Rating

Expandable explosive and stemming cartridge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable explosive and stemming cartridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable explosive and stemming cartridge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-108971