| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Cartridge | US41888341 | 1941-11-13 | US2326393A | 1943-08-10 | RICE JR JOHN V |
| 82 | Torpedo | US46205521 | 1921-04-16 | US1709590A | 1929-04-16 | MYERS TOM B |
| 83 | Ignition device for automobile torpedoes. | US1907357629 | 1907-02-16 | US880029A | 1908-02-25 | LEAVITT FRANK M |
| 84 | METHODS AND APPARATUSES FOR ELECTRONIC TIME DELAY AND SYSTEMS INCLUDING SAME | PCT/US2007082641 | 2007-10-26 | WO2008070343A4 | 2009-01-22 | PRINZ FRANCOIS X; ARRELL JOHN A JR; BORJA RONALD S; SLADE WILLIAM J |
| Electronic time delay apparatuses and methods of use are disclosed. An explosive or propellant system, which may be configured as a well perforating system includes an electronic time delay assembly comprising an input subassembly, an electronic time delay circuit, and an output subassembly. The input subassembly is activated by an external stimulus, wherein an element is displaced to activate an electronic time delay circuit. The electronic time delay circuit comprises a time delay device coupled with a voltage firing circuit. The electronic time delay circuit counts a time delay, and, upon completion, raises a voltage until a threshold firing voltage is exceeded. Upon exceeding the threshold firing voltage, a voltage trigger switch will break down to transfer energy to an electric initiator to initiate an explosive booster within the output subassembly. The explosive booster provides the detonation output to initiate the next element explosive or propellant element, such as an array of shaped charges in the well perforating system. | ||||||
| 85 | METHODS AND APPARATUSES FOR ELECTRONIC TIME DELAY AND SYSTEMS INCLUDING SAME | PCT/US2007082641 | 2007-10-26 | WO2008070343A3 | 2008-12-11 | PRINZ FRANCOIS X; ARRELL JOHN A JR; BORJA RONALD S; SLADE WILLIAM J |
| Electronic time delay apparatuses and methods of use are disclosed. An explosive or propellant system, which may be configured as a well perforating system includes an electronic time delay assembly comprising an input subassembly, an electronic time delay circuit, and an output subassembly. The input subassembly is activated by an external stimulus, wherein an element is displaced to activate an electronic time delay circuit. The electronic time delay circuit comprises a time delay device coupled with a voltage firing circuit. The electronic time delay circuit counts a time delay, and, upon completion, raises a voltage until a threshold firing voltage is exceeded. Upon exceeding the threshold firing voltage, a voltage trigger switch will break down to transfer energy to an electric initiator to initiate an explosive booster within the output subassembly. The explosive booster provides the detonation output to initiate the next element explosive or propellant element, such as an array of shaped charges in the well perforating system. | ||||||
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