| Patents for F42D 1 - Blasting methods or apparatus, e.g. for loading or tamping (4,148) |
|---|
| 04/19/1995 | EP0648997A1 High energy fuse |
| 04/18/1995 | US5406890 Method of activating electrical loads after predetermined time delays |
| 04/18/1995 | CA2067661C Digital delay detonator |
| 04/13/1995 | WO1995009969A1 Fluid activated detonating system |
| 03/21/1995 | US5398611 Low energy blasting initiation system, method and surface connection therefor |
| 03/17/1995 | CA2131516A1 Remote control for bulk explosives delivery system |
| 02/28/1995 | US5392860 Heat activated safety fuse |
| 02/22/1995 | CN1099126A Water solution for demolition |
| 02/14/1995 | US5388521 Method of reducing ground vibration from delay blasting |
| 02/09/1995 | WO1995004253A1 Programmable electronic time delay initiator |
| 02/09/1995 | CA2168642A1 Programmable electronic time delay initiator |
| 02/07/1995 | US5386780 Method and apparatus for extended time delay of the detonation of a downhole explosive assembly |
| 01/12/1995 | WO1995001546A1 Detonation device including coupling means |
| 01/05/1995 | WO1995000369A1 Starting device for crew protecting system |
| 01/03/1995 | US5377592 Impulse signal delay unit |
| 12/28/1994 | EP0505513B1 Piezoelectrical igniter |
| 12/27/1994 | US5375527 Method for blasting employing bar-like charge |
| 12/27/1994 | US5375524 Blasting connector system and method of use |
| 12/03/1994 | CA2097537A1 Pneumatic dynamiting machine |
| 12/01/1994 | DE4311526C1 Device for wire-free initiation of hazardous processes from a safe distance |
| 11/29/1994 | US5369579 Electronic blast control system for downhole well operations |
| 11/29/1994 | US5367957 Tunable timing circuit and method for operating same and blasting detonator using same |
| 11/23/1994 | CN1095475A Digital display type blasting apparatus with test device |
| 11/22/1994 | US5365851 Initiator device |
| 11/18/1994 | CA2123331A1 System for loading bulk explosives |
| 11/17/1994 | EP0624773A1 Firework having means to separate several succesively ignited charges from casings |
| 11/15/1994 | US5363765 Electronic delay circuit for firing ignition element |
| 11/10/1994 | WO1994025820A1 Initiation system |
| 11/10/1994 | DE4330195C1 Detonation instant fuze |
| 10/18/1994 | US5355802 Method and apparatus for perforating and fracturing in a borehole |
| 09/29/1994 | WO1994021883A1 Heat activated safety fuse |
| 09/29/1994 | WO1994021882A1 Hydrostatic activated ballistic blocker |
| 09/29/1994 | WO1994021881A1 Heat activated ballistic blocker |
| 09/28/1994 | CN2178346Y Multipurpose detonating device |
| 09/21/1994 | EP0616190A1 Electronic delay circuit for firing ignition element |
| 09/21/1994 | CN2177932Y Multi-purpose detonating belt |
| 09/21/1994 | CN1092520A 表面爆破系统 Surface blasting system |
| 09/20/1994 | US5347929 Firing system for a perforating gun including an exploding foil initiator and an outer housing for conducting wireline current and EFI current |
| 09/14/1994 | CN2177222Y Blasting hole blocking plug |
| 09/13/1994 | US5346014 Heat activated ballistic blocker |
| 09/13/1994 | US5346005 Inflatable borehole plug assemblies |
| 09/13/1994 | CA1331935C Multi-directional initiator for explosives |
| 09/06/1994 | CA2037589C Low-energy blasting initiation system, method and surface connection therefor |
| 08/31/1994 | EP0612971A1 Method and apparatus for charging bore-holes with explosive |
| 08/31/1994 | CN2175918Y Chain-type gun-firing device |
| 08/30/1994 | US5343002 Disposable point with explosive charge for seismic exploration |
| 08/30/1994 | US5341742 Firing arrangements |
| 08/24/1994 | CN2175403Y Shuttle like device for protection of blasting in pipe line |
| 08/03/1994 | CN2173388Y Two-phase non-electricity leading explosion system check instrument |
| 08/02/1994 | CA1331111C Explosive device for underwater use |
| 07/20/1994 | CN2172457Y Control device of network locking detonating device |
| 07/12/1994 | US5327835 Detonation device including coupling means |
| 07/07/1994 | WO1994015169A1 Digital delay unit |
| 07/07/1994 | DE4244617A1 Explosive-charge-tamping method in borehole |
| 07/06/1994 | EP0604694A1 Electronic system for sequential blasting |
| 06/16/1994 | DE4242041A1 Charging column with explosive column - has rigid, screwable explosive cartridge with igniter and wires with cylindrical charging head fixed via thread on column |
| 06/15/1994 | EP0601880A2 Perforating gun detonator package incorporating exploding foil |
| 06/15/1994 | EP0601831A1 Surface blasting system |
| 06/11/1994 | CA2111153A1 Perforating gun detonator package incorporating exploding foil |
| 05/17/1994 | US5311819 Explosive logic network |
| 05/17/1994 | US5311818 Explosive panel |
| 05/11/1994 | WO1994010525A1 Radio frequency attenuating connector |
| 05/11/1994 | WO1994010422A1 Thermal safety switch for use with electrically actuated wellbore tools |
| 04/27/1994 | EP0594391A1 Delayed detonation of downhole explosive |
| 04/26/1994 | CA1328914C Blasting system and components therefor |
| 04/22/1994 | CA2108806A1 Method and apparatus for extended time delay of the detonation of a downhole explosive assembly |
| 04/20/1994 | CN2162643Y Blasting machine with no-contact electronic switch |
| 04/05/1994 | US5299500 Connecting block for ignition devices |
| 03/23/1994 | EP0588685A1 Programmable integrated detonator delay circuit |
| 03/23/1994 | EP0587675A1 Method and means for driving pipes into the ground and cartridge used therefor and for subsequent pipe blasting. |
| 03/22/1994 | US5295438 Single initiate command system and method for a multi-shot blast |
| 03/16/1994 | CN1083919A Method of small-delaying large-area demolition job without electric detonating |
| 03/08/1994 | US5291829 Radio frequency attenuating connector |
| 03/03/1994 | WO1994004885A1 Process for sinking and sealing a blast hole |
| 03/01/1994 | CA2104545A1 Pumpable stemming |
| 03/01/1994 | CA1327391C Ferrite core coupled slapper detonator apparatus and method |
| 02/24/1994 | DE4227724A1 Verfahren zum Teufen und Abdichten einer Sprengbohrung A method of depths and sealing a blast hole |
| 02/17/1994 | WO1994003771A1 Device for sequentially firing electrical detonators |
| 02/16/1994 | EP0582702A1 Blasting method and composition |
| 02/16/1994 | CN2156469Y Wind driving stemming device |
| 02/15/1994 | US5285728 Successive-actuation device, using pyrotechnic cord |
| 02/08/1994 | US5284094 Pyrotechnic ignition apparatus |
| 02/01/1994 | US5282421 Timing apparatus |
| 01/27/1994 | DE4242205C1 Stopper for explosive cartridge - has rigid bar on end of cylindrical portion with elastic lock engaging inside cartridge |
| 01/25/1994 | CA1326528C Multi-directional signal transmission in a blast initiation system |
| 01/20/1994 | WO1994001734A1 Shock pulse coupling arrangement |
| 01/20/1994 | WO1993023718A3 Electric initiating means for a shock tube |
| 01/18/1994 | CA1326281C Delay circuit for use in electric blasting system |
| 01/12/1994 | CN2153036Y Plug for gun borehole |
| 01/11/1994 | CA1326068C Detonator firing system |
| 12/29/1993 | EP0386012B1 Triggering circuit for a vehicle air bag |
| 12/28/1993 | US5273110 Inflatable devices for suspending explosives and stemming materials in boreholes |
| 12/28/1993 | CA1325536C Method and device for introduction of explosives into drill holes |
| 12/22/1993 | CN2150521Y Constant-current ignitor |
| 12/16/1993 | CA2098456A1 Method of uphole loading |
| 12/09/1993 | DE4218460A1 Anti-tank mine - has housing contg. several explosive charges ignited by central detonator working with non-electrical pyrotechnic transmission conduit |
| 12/02/1993 | DE4236305C1 Inlet nipple for explosion or ignition transmission pipe - has thin foil inlet membrane and high reliability while maintaining conventional geometry |
| 11/30/1993 | CA1324733C Photopyrotechnical detonation device and photopyrotechnical chain using this device |
| 11/25/1993 | WO1993023718A2 Electric initiating means for a shock tube |
| 11/18/1993 | DE4221168C1 Igniting detonators connected in series - using ignition machine with circuit for avoiding shunt failures and limiting charge voltage of ignition capacitor dependent upon applied resistance of series connected ignition circuit |