Method and apparatus for sleeving a borehole

Details Method and apparatus for sleeving a borehole Method and apparatus for sleeving a borehole

2005-05-03

2005-05-03

Bagnell, David (Department: 3672)

Ammunition and explosives

Blasting

Borehole loading

C102S324000, C102S331000, C102S319000, C166S262000, C166S299000, C166S063000

Reexamination Certificate

active

06886466

ABSTRACT:
A novel method and device for sealing a borehole that is filled either partially or completely with water. A water-permeable sleeve is capable of expanding to the diameter of the borehole, and is constructed of a material that will allow the passage of water in and out throughout its length, with a series of apertures, but will prevent an explosive charge from escaping. Once the sleeve is in place, a hose, to introduce the explosive charge, is lowered through the sleeve to bottom of the borehole.

REFERENCES:
patent: 371298 (1887-10-01), Bourne
patent: 1863921 (1932-06-01), McCloud
patent: 2138603 (1938-11-01), Johnson
patent: 3696703 (1972-10-01), Fox
patent: 3881417 (1975-05-01), Mesia
patent: 4019438 (1977-04-01), Swanson, Jr.
patent: 4494603 (1985-01-01), Harguindey
patent: 4572075 (1986-02-01), Day et al.
patent: 5192819 (1993-03-01), Baumgartner

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