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Class Information
Number: 102/313
Name: Ammunition and explosives > Blasting > Borehole loading
Description: Subject matter including means for placing or inserting (a) an explosive, or (b) a fluid under high pressure capable of rapid expansion to break up material in a hollowed-out place.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
4481884 Field-connected explosive booster for initiating low-energy explosive connecting cords Nov. 13, 1984
4470352 Cartridge for bulling mine holes Sep. 11, 1984
4466354 Apparatus for charging rising drillholes Aug. 21, 1984
4464994 Apparatus for plugging a blast hole in an in situ oil shale retort or the like Aug. 14, 1984
4464993 Process for use in blasting in situ retorts and the like Aug. 14, 1984
4438699 Method for remote positioning of explosive charges in mining voids Mar. 27, 1984
4419935 Explosive charging apparatus for charging explosive pellets to a bore in a rock Dec. 13, 1983
4406226 Non-electric delay blasting method Sep. 27, 1983
4383484 Primer assembly May. 17, 1983
4382410 Explosive blasting method and means May. 10, 1983
4380948 Loading of wellbores with explosives Apr. 26, 1983
4378844 Explosive cutting system Apr. 5, 1983
4369711 Bag for explosives with lower reinforcing sleeves Jan. 25, 1983
4354156 Device for detecting ferromagnetic materials Oct. 12, 1982
4278127 Apparatus for retrieving drill collars Jul. 14, 1981
RE30621 Carrier for explosive primer and method of using same May. 26, 1981
4248303 Explosive well-fracturing system Feb. 3, 1981
4239285 Method of attenuating airblast from detonating explosive in an in situ oil shale retort Dec. 16, 1980
4237972 Well bore apparatus adapted for being releasably coupled to suspension cables Dec. 9, 1980
4208966 Methods and apparatus for selectively operating multi-charge well bore guns Jun. 24, 1980
4185702 Method and apparatus for borehole perforating Jan. 29, 1980
4184430 Method and apparatus for severing tubing Jan. 22, 1980
4167139 Time delay primer and method of using same Sep. 11, 1979
4164886 Sealing projectile Aug. 21, 1979
4161142 Blasting booster and methods Jul. 17, 1979
4102412 Apparatus and method for placing explosives in submerged rock Jul. 25, 1978
4090447 Directional blasting tubes and method of use May. 23, 1978
4074629 Blasting agent and method Feb. 21, 1978
4069760 Method for driving a shaft with shaped charges Jan. 24, 1978
4064935 Oil well stimulation apparatus Dec. 27, 1977
4063509 Device for stimulation of geothermal wells Dec. 20, 1977
4040355 Excavation apparatus and method Aug. 9, 1977
4040329 Method and arrangement for charging of shotholes Aug. 9, 1977
4034672 Linear explosive Jul. 12, 1977
4002119 Method for in situ assembly of charge for controlled shooting of wells Jan. 11, 1977
3986430 Loading of boreholes with explosives Oct. 19, 1976
3971317 Detonation system and method Jul. 27, 1976
3952655 Underwater blasting method and explosives and devices used therein Apr. 27, 1976
3951065 Explosive device and method for removing ice from railroad tunnels Apr. 20, 1976
3949673 Semi-rigid sinuous blasting charge and borehole loading method Apr. 13, 1976

1 2 3 4 5 6










 
 
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