| Patents for F42D 1 - Blasting methods or apparatus, e.g. for loading or tamping (4,148) |
|---|
| 08/02/1977 | US4038900 Explosive closure valve |
| 07/26/1977 | US4037538 Device for firing an electric detonator |
| 07/26/1977 | US4037537 Method and a device for blasting |
| 07/19/1977 | US4036139 Electrically initiated fuse ignitor |
| 07/19/1977 | US4036100 Apparatus and method for loading fluent explosives in upwardly extending boreholes |
| 07/19/1977 | US4036099 Method of loading blast hole with explosive |
| 06/28/1977 | US4031826 Detonation system and method |
| 05/24/1977 | US4024817 Elongated flexible detonating device |
| 05/17/1977 | US4023493 Fireline detonator |
| 04/26/1977 | US4019438 Sleeving and sleeving stand apparatus and method |
| 04/19/1977 | US4018293 Method and apparatus for controlled fracturing of subterranean formations |
| 04/19/1977 | US4018163 Placement method for Q.D. charges using minimum diving time |
| 04/05/1977 | US4015526 Explosive charge |
| 03/15/1977 | US4011815 Safe-handling arming apparatus for perforating guns |
| 02/15/1977 | US4007796 Explosively actuated well tool having improved disarmed configuration |
| 01/18/1977 | US4003429 Apparatus for loading gas-conveyed particulate solids into a borehole |
| 12/28/1976 | US3999803 In situ leaching of explosively fractured ore bodies |
| 12/21/1976 | US3999076 Blasting machine |
| 12/14/1976 | US3996836 Apparatus for transporting and charging uncartridged explosives, more particularly plastic explosives |
| 11/16/1976 | US3991679 Booster apparatus for augmenting side initiation of explosive cords |
| 11/09/1976 | US3990367 Injection-molding apparatus for attaching end fittings to detonating cords |
| 10/26/1976 | US3987733 Millisecond delay surface connector |
| 10/26/1976 | US3987732 Non-electric double delay borehole downline unit for blasting operations |
| 10/26/1976 | US3987729 Device for firing an electric detonator |
| 10/19/1976 | US3986430 Loading of boreholes with explosives |
| 09/28/1976 | US3982486 Non-expendable positioning frame for multiple explosive charges |
| 09/07/1976 | US3978791 Secondary explosive detonator device |
| 08/10/1976 | US3973499 Safe rocket motor igniter using sequenced initiation to an explosive logic network |
| 08/10/1976 | US3973497 Directed-thrust blasting process |
| 08/03/1976 | US3972285 Object array placement device |
| 07/27/1976 | US3971318 Explosive assembly comprising a tubular member formed of water-soluble plastic |
| 07/27/1976 | US3971317 Detonation system and method |
| 06/08/1976 | US3961592 Quick release |
| 06/08/1976 | US3961492 Machine for and method of stemming blast holes |
| 06/01/1976 | US3960082 Down-the-hole device for breaking rock, concrete and reinforced concrete by pulsewize high liquid pressure |
| 05/25/1976 | US3959670 Blasting machine |
| 05/04/1976 | US3954058 Coal mine shooting plug |
| 04/27/1976 | US3953804 Switching arrangement for the production of sequential current pulses |
| 04/27/1976 | US3952656 Device and process |
| 04/27/1976 | US3952655 Underwater blasting method and explosives and devices used therein |
| 03/23/1976 | US3945322 Through-bulkhead explosion initiation |
| 03/16/1976 | US3943820 Method for charging drill holes with explosive |
| 03/02/1976 | US3941056 Blasting cap adapter for severing blasting circuit leads |
| 02/24/1976 | US3939771 Seismic explosive charge loader and anchor |
| 02/24/1976 | US3939681 Method of explosively expanding tubes |
| 02/17/1976 | US3939419 Security remote control method and system |
| 01/27/1976 | US3934514 Firing devices and processes |
| 01/06/1976 | US3931527 Ignition circuit for vehicle occupant protecting system |