| Patents for F42D 1 - Blasting methods or apparatus, e.g. for loading or tamping (4,148) |
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| 12/09/1986 | CA1214955A1 Methods and apparatus for loading a borehole with explosives |
| 12/03/1986 | EP0203230A1 Apparatus and method for manufacture and delivery of blasting agents |
| 11/12/1986 | CA1213940A1 Digital display ohmmeter |
| 10/29/1986 | EP0199616A1 Checking device for the ignition of a pyrotechnic charge |
| 10/07/1986 | US4615752 Methods of pumping and loading emulsion slurry blasting compositions |
| 10/07/1986 | US4615268 Remote blasting system for effecting multiple-step explosion and switching unit for use in this system |
| 09/30/1986 | US4614156 Pressure responsive explosion initiator with time delay and method of use |
| 09/30/1986 | US4614146 Mix-delivery system for explosives |
| 09/12/1986 | WO1986005263A1 Acoustically detonated explosively releasable link |
| 09/10/1986 | CN85102870A Demolition device with liquid explosive |
| 09/09/1986 | US4610203 Electrical sequential firing system |
| 09/02/1986 | US4608926 Swivel type through bulkhead initiator |
| 08/05/1986 | CA1209033A1 Plug for blasting hole |
| 07/29/1986 | CA1208536A1 Mechanically initiated tubing conveyed perforator system |
| 07/23/1986 | EP0187782A1 Borehole plug and method |
| 07/22/1986 | US4601243 Method and apparatus for electrically detonating blasting primers |
| 07/08/1986 | US4598776 Method and apparatus for firing multisection perforating guns |
| 07/02/1986 | CA1206783A Method of loading a blast hole |
| 06/24/1986 | CA1206408A1 Single-wire selective perforation system having firing safeguards |
| 06/03/1986 | US4592282 Charging apparatus for cartridged explosives |
| 06/03/1986 | US4592281 Arming and firing device |
| 05/28/1986 | EP0182661A2 Methods of loading a borehole with a emulsion slurry blasting composition |
| 05/06/1986 | US4586438 Borehole stemming with a column of liquefiable and/or vaporizable chunks of solid material |
| 04/15/1986 | US4581997 Induced current-proof detonating system and method |
| 04/01/1986 | CA1202559A1 Single-wire selective perforation system |
| 03/18/1986 | US4576093 Remote radio blasting |
| 03/12/1986 | EP0174115A2 Method and apparatus for safer remotely controlled firing of ignition elements |
| 03/12/1986 | EP0174075A1 Digital display ohmmeter |
| 03/10/1986 | CN85106141A Borehole plug |
| 02/25/1986 | US4572288 Time-delayed ignition system for a down-hole explosive tool |
| 02/25/1986 | US4572075 Methods and apparatus for loading a borehole with explosives |
| 02/19/1986 | EP0171913A1 Low energy fuses |
| 01/30/1986 | WO1986000660A1 Borehole plug and method |
| 12/31/1985 | US4561356 Explosive charge safe-arming system |
| 12/31/1985 | CA1198668A1 Perforating gun indexed wiring harness |
| 12/18/1985 | EP0164941A2 Primer assembly |
| 12/04/1985 | EP0163364A1 Controlled inductive coupling device |
| 11/26/1985 | US4554981 Tubing pressurized firing apparatus for a tubing conveyed perforating gun |
| 11/10/1985 | CN85200084U Water seal and water pressure water case for shot hole blasting |
| 11/06/1985 | EP0160628A2 Method and device for detecting and firing a pyrotechnic charge in a multiple-charge system |
| 10/16/1985 | EP0157982A2 Method and apparatus for blasting electrically detonating primers |
| 10/10/1985 | CN85103708A Short line differantial detonate ignitor |
| 10/09/1985 | EP0157535A1 Well perforating gun |
| 10/01/1985 | US4543700 Method of detachably securing an explosive charge container in a hollow carrier for a perforating device |
| 09/24/1985 | US4542941 For use with a mine having underground workings |
| 09/24/1985 | CA1193963A1 Positive fire indicator perforating system |
| 09/24/1985 | CA1193909A1 Methods of and containers for igniting explosives |
| 09/24/1985 | CA1193907A1 Non-electric blasting assembly |
| 09/18/1985 | EP0155128A2 Devices for actuating explosive charges in wellbores, and methods of perforating boreholes |
| 09/17/1985 | US4541342 Pyrotechnic device with metal diaphragm and metal insert |
| 09/11/1985 | EP0154532A2 High explosive devices for use in wells and methods of detonating them |
| 09/10/1985 | US4539909 Detonating assembly with U-bend of low energy detonating cord |
| 08/27/1985 | US4537131 Apparatus for initiating explosions and method therefor |
| 08/20/1985 | US4536693 High-speed capacitor discharge circuit suitable for the protection of detonation devices |
| 07/23/1985 | USRE31953 Method of charging a borehole |
| 07/16/1985 | CA1190435A1 Detonator assembly |
| 07/16/1985 | CA1190421A1 Charging large diameter vertical boreholes |
| 07/10/1985 | EP0147688A2 Method of sequentially firing electronic-delay fuses |
| 07/09/1985 | US4527636 Single-wire selective perforation system having firing safeguards |
| 07/09/1985 | US4527482 Blasting cap to primer adapter |
| 07/02/1985 | US4526633 Formulating and delivery system for emulsion blasting |
| 06/18/1985 | US4523650 Explosive safe/arm system for oil well perforating guns |
| 06/11/1985 | US4522129 For the introduction of explosive |
| 06/11/1985 | US4522125 Charging large diameter vertical boreholes |
| 06/11/1985 | CA1188777A1 Sequential detonation of explosions |
| 05/28/1985 | US4519314 Borehole charging method including toroidal transformer cores |
| 05/28/1985 | US4519313 Charge holder |
| 05/02/1985 | EP0138899A1 Method for splitting, respectively crushing solid materials, such as rocks, ores, concrete blocs or similar materials |
| 04/30/1985 | US4513665 Method for loading explosive charges into blastholes formed in a subterranean formation |
| 04/23/1985 | US4512418 Mechanically initiated tubing conveyed perforator system |
| 04/10/1985 | EP0136919A2 Electrical sequential firing module and system and power source therefor |
| 04/02/1985 | US4508035 Explosive charging apparatus for rock drilling |
| 02/26/1985 | US4501199 Automatically controlled rock drilling apparatus |
| 01/30/1985 | EP0132330A2 Tubing conveyed well perforating system |
| 01/29/1985 | US4496010 Single-wire selective performation system |
| 01/29/1985 | US4495867 Assembly for initiating explosives with low-energy detonating cord |
| 01/29/1985 | US4495849 Remotely activated cable cutter |
| 01/29/1985 | CA1181738A1 Expandable explosive and stemming cartridge |
| 01/08/1985 | US4492165 Charging an upward or inclined vertical borehole in stable rock |
| 01/01/1985 | US4491185 Method and apparatus for perforating subsurface earth formations |
| 12/27/1984 | EP0129350A2 Method and apparatus for detecting firing of perforating gun |
| 12/27/1984 | CA1180057A Electrically actuable ignition assembly |
| 12/25/1984 | US4489655 Sequential blasting system |
| 12/19/1984 | EP0128791A1 Safety ohmmeter for checking electric blasting lines |
| 12/11/1984 | US4487129 Methods of and containers for igniting explosives |
| 12/11/1984 | US4487125 for energizing a load |
| 12/04/1984 | US4485739 Detonation gas delivery unit |
| 11/27/1984 | US4484639 Method and apparatus for perforating subsurface earth formations |
| 11/13/1984 | US4481884 Field-connected explosive booster for initiating low-energy explosive connecting cords |
| 11/06/1984 | CA1177295A1 Charging apparatus |
| 10/30/1984 | US4479556 Subterranean well casing perforating gun |
| 10/30/1984 | US4479436 Device for igniting safety fuse |
| 10/23/1984 | US4478294 Positive fire indicator system |
| 10/16/1984 | US4476710 Detonation transfer evaluation technique |
| 09/27/1984 | WO1984003760A1 Method for splitting, respectively crushing solid materials, such as rocks, ores, concrete blocs or similar materials |
| 09/11/1984 | US4470352 Cartridge for bulling mine holes |
| 08/21/1984 | US4466354 Apparatus for charging rising drillholes |
| 08/14/1984 | US4464994 Apparatus for plugging a blast hole in an in situ oil shale retort or the like |
| 08/14/1984 | US4464993 Process for use in blasting in situ retorts and the like |
| 07/25/1984 | EP0114103A2 Positive fire indicator perforating system for wells |