| Patents for F42D 1 - Blasting methods or apparatus, e.g. for loading or tamping (4,148) |
|---|
| 02/03/1981 | US4248152 Field-connected explosive booster for propagating a detonation in connected detonating cord assemblies containing low-energy detonating cord |
| 01/27/1981 | CA1094390A1 Explosives initiation assembly and system |
| 01/13/1981 | CA1093631A1 Initiation of blasting detonators |
| 12/16/1980 | US4239004 Delay detonator device |
| 12/16/1980 | US4239003 Method for transmitting detonation at a sharp angle |
| 11/18/1980 | US4234768 Selective fire perforating gun switch |
| 11/18/1980 | CA1089708A1 Explosive energy-initiatable blasting caps containing a porous ignition and detonation system and method |
| 11/04/1980 | CA1088860A1 Process for producing an underground zone of fragmented and pervious material |
| 10/15/1980 | EP0017496A1 Blasting cartridge, its manufacture and its use in priming ANFO |
| 09/23/1980 | US4223605 Fuse |
| 09/17/1980 | EP0015697A1 Non-electric delay detonator and assembly of a detonating cord and a delay detonator |
| 09/03/1980 | EP0015067A1 Field-connected explosive booster, booster-connector assembly and detonating cord assembly comprising such booster-connector assembly |
| 09/02/1980 | US4220212 Apparatus for monitoring the operation of well bore guns |
| 09/02/1980 | CA1084774A1 Time delay primer and method of using same |
| 08/26/1980 | CA1084341A1 Time delay primer and method of making same |
| 08/26/1980 | CA1084340A1 Plant for blasting of objects such as rock, concrete, and the like |
| 08/20/1980 | EP0014401A1 Electric igniter for igniting detonating cords, delay compositions and detonators |
| 08/05/1980 | US4215631 Sealed pyrotechnic delay |
| 07/29/1980 | US4214532 Stemming |
| 06/24/1980 | US4208966 Methods and apparatus for selectively operating multi-charge well bore guns |
| 06/03/1980 | US4205610 Shale oil recovery process |
| 05/13/1980 | CA1077530A1 Drill units for drilling and charge laying operations and method of carrying out the operations |
| 04/22/1980 | CA1075971A1 Tampable chub cartridge |
| 04/01/1980 | US4195548 Blasting slurry pump truck |
| 03/11/1980 | CA1073266A1 Method and a device for blasting |
| 03/04/1980 | US4191265 Well bore perforating apparatus |
| 02/12/1980 | US4187780 Detonating cord and blasting cap connector block |
| 02/12/1980 | CA1071469A1 Carrier for explosive primer and method of using same |
| 01/08/1980 | CA1069358A1 Tube feeding device for use in charging shotholes with explosive through a pipe or tube |
| 12/18/1979 | CA1068161A2 Elongated, flexible detonating device |
| 12/18/1979 | CA1068160A1 Closed initiator system including explosive energy-initiatable blasting caps, and method |
| 11/27/1979 | US4175490 Process for producing an underground zone of fragmented and pervious material |
| 11/20/1979 | CA1066556A2 Placement method for q.d. charges using minimum diving time |
| 11/20/1979 | CA1066543A1 Loading of boreholes with explosives |
| 10/30/1979 | US4172421 Fluid desensitized safe/arm detonator assembly |
| 10/16/1979 | CA1064322A1 Elongated, flexible detonating device |
| 09/11/1979 | US4167139 Time delay primer and method of using same |
| 09/04/1979 | US4166418 Time delay primer and method of making same |
| 09/04/1979 | US4166417 Explosive boosting device for low-sensitivity blasting agents |
| 08/28/1979 | US4165691 Delay detonator and its use with explosive packaged boosters and cartridges |
| 08/28/1979 | US4165690 Drill units for drilling and charge laying operations and method of carrying out the operations |
| 08/14/1979 | CA1060557A1 Detachable, water-tight connection elements for detonating devices and components which process the ignition signal |
| 08/14/1979 | CA1060419A1 Hose feeding winch |
| 08/08/1979 | EP0003412A2 Electric delay device |
| 08/08/1979 | EP0003396A1 Control circuit for energizing an electrically ignited load |
| 07/26/1979 | WO1979000471A1 Method for blasting rock |
| 07/24/1979 | US4162116 Detachable, water-tight connection elements for detonating devices and components which process for the ignition signal |
| 07/03/1979 | CA1057577A1 Non-electric double delay borehole downline unit for blasting operations |
| 06/05/1979 | US4157069 Initiation of blasting detonators |
| 05/29/1979 | CA1055308A1 Directional blasting tube having an air cushion |
| 05/15/1979 | CA1054443A1 Placement method for q.d. charges using minimum diving time |
| 05/01/1979 | CA1053503A1 Explosive charge |
| 04/04/1979 | EP0001244A1 Fuse |
| 03/20/1979 | US4144814 Delay detonator device |
| 03/20/1979 | CA1051042A1 Method and device for breaking hard compact material |
| 03/06/1979 | CA1049843A1 Millisecond delay surface connector |
| 02/27/1979 | US4141592 Method and device for breaking hard compact material |
| 02/27/1979 | US4141296 Carrier for explosive primer and method of using same |
| 02/20/1979 | CA1048924A1 Safe-handling arming method and apparatus for perforating guns |
| 02/20/1979 | CA1048825A1 Method of charging drill holes and means for carrying out the method |
| 02/13/1979 | US4138832 Hole filling machine |
| 02/06/1979 | CA1047834A1 Directed-thrust blasting process |
| 01/23/1979 | US4135455 Multiple payload cartridge employing single pair of electrical connections |
| 01/23/1979 | US4135450 Method of underground mining |
| 01/23/1979 | CA1046812A1 Delay blasting assembly |
| 01/09/1979 | US4133247 Carrier for explosive primer and method of using same |
| 01/02/1979 | US4132172 Hinged bridging plug for explosive placement holes |
| 12/19/1978 | CA1044499A1 Method and arrangement for charging shotholes |
| 09/12/1978 | US4112845 Apparatus for detonating across a gap |
| 08/08/1978 | US4106073 Apparatus for igniting the match heads of electric detonators |
| 07/25/1978 | US4102240 Blasting slurry pump truck |
| 07/18/1978 | US4100978 Technique for disarming and arming electrically fireable explosive well tool |
| 07/11/1978 | US4099467 Sequential initiation of explosions |
| 05/30/1978 | US4091870 Method for generating horizontal fractures in a wellbore |
| 05/23/1978 | US4090447 Directional blasting tubes and method of use |
| 05/16/1978 | US4089381 Chamber isolator and sealing means for borehole perforating tools |
| 05/09/1978 | US4089035 Hand-held detonator |
| 05/09/1978 | US4088368 Method for explosive breaking of hard compact material |
| 04/25/1978 | US4085676 Elongated flexible detonating device |
| 04/04/1978 | US4081982 Plant for explosion working of materials |
| 03/28/1978 | US4081031 Oil well stimulation method |
| 03/14/1978 | US4078612 Well stimulating process |
| 02/21/1978 | US4074629 Blasting agent and method |
| 02/14/1978 | US4073235 Explosive energy-initiatable blasting caps containing a porous ignition and detonation system and method |
| 01/24/1978 | US4069760 Method for driving a shaft with shaped charges |
| 01/03/1978 | US4066093 Hose feeding winch |
| 11/29/1977 | US4060034 Delay booster assembly |
| 11/29/1977 | US4060033 Delay booster assembly |
| 11/01/1977 | US4056059 Closed initiator system including explosive energy-initiatable blasting caps, and method |
| 10/25/1977 | US4055122 Method of placing blasting charges in wet boreholes |
| 10/11/1977 | US4052939 Tampable chub cartridge |
| 10/04/1977 | US4051988 Tube feeding device for use in charging shotholes with explosive through a pipe or tube |
| 10/04/1977 | US4051907 Selective firing system |
| 09/13/1977 | US4047987 Underwater blasting explosives |
| 08/30/1977 | US4044681 Control circuit for the conduction of an electronic switch |
| 08/16/1977 | US4041867 Conductor containing explosive gas mixture for initiation of ignition element and explosive charge |
| 08/16/1977 | US4041865 Method and apparatus for detonating explosives |
| 08/09/1977 | US4040355 Excavation apparatus and method |
| 08/09/1977 | US4040330 Method of charging drill holes and means for carrying out the method |
| 08/09/1977 | US4040329 Method and arrangement for charging of shotholes |