E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
349/4, 166/65
E21B 33/126 (2006.01) E21B 33/127 (2006.01) F42D 1/08 (2006.01)
Patent
CA 1302236
ABSTRACT OF THE DISCLOSURE The invention provides methods and apparatus useful primarily in the presplitting and blast removal of earth formations, the improvements according to the invention involving the use of inflatable devices suspended in boreholes used in shattering earth formations. The inflatable devices of the invention can be of various shapes and are provided with valves to allow a fluid such as air to be pumped into each device on placement of the device at a desired location in a borehole. The inflatable devices are preferably formed of a flexible, polymeric material which allows a desired degree of stretching to cause plugging of a borehole. The "plug" formed by an inflatable device of the invention allows loading of explosives into a borehole in order to produce desired blast results according to the several methods of the invention.
585274
Fitzgibbon Daniel F.
Mccarthy Tetrault Llp
LandOfFree
Methods and apparatus for field blasting of earth formations... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for field blasting of earth formations..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for field blasting of earth formations... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1282187