Title (en)

Electrical detonator.

Title (de)

Elektrischer Zünder.

Title (fr)

Détonateur électrique.

Publication

EP 0679859 A3 19960703 (EN)

Application

EP 95302104 A 19950329

Priority

• US 21958894 A 19940329
• US 41060695 A 19950323

Abstract (en)

[origin: EP0679859A2] An electrical detonator has a case (12) containing an explosive charge (13), a semiconductor bridge (16) positioned adjacent one end of the explosive charge (13) and electrically connected to a spark gap (18) and, in some embodiments, a capacitor and a bleeder resistor. A pair of electrically conductive wires (20,22) are connected to the spark gap (18) and semiconductor bridge (16) to provide a means for passing an electrical charge to the semiconductor bridge (16). The detonator also may include an rf attenuator (24), such as a ferrite bead. through which the electrically conductive wires (20,22) pass. <IMAGE>

IPC 1-7

F42B 3/13

IPC 8 full level

F42B 3/13 (2006.01); F42B 3/188 (2006.01)

CPC (source: EP)

F42B 3/13 (2013.01); F42B 3/188 (2013.01)

Citation (search report)

• [Y] US 5094167 A 19920310 - HENDLEY JR EDWARD L [US]
• [Y] US 3117519 A 19640114 - HAMILTON CHARLES R, et al
• [Y] US 4592280 A 19860603 - SHORES MARVIN W [US]
• [Y] US 4976200 A 19901211 - BENSON DAVID A [US], et al
• [Y] US 4312271 A 19820126 - DAY EDWARD A, et al
• [Y] US 3169482 A 19650216 - NOBLE LOWELL A
• [Y] US 4708060 A 19871124 - BICKES JR ROBERT W [US], et al
• [A] US 3524408 A 19700818 - PIERSON EDWARD G
• [A] US 3274937 A 19660927 - KYLE JAMES C
• [A] US 3640224 A 19720208 - PETRICK JOHN T, et al
• [A] FR 2436963 A1 19800418 - FRANCE ETAT
• [A] US 3960083 A 19760601 - DIETZEL RUSSEL W, et al
• [A] US 3366055 A 19680130 - HOLLANDER JR LEWIS E

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0679859 A2 19951102; EP 0679859 A3 19960703; CA 2145721 A1 19950930; CA 2145721 C 20000201

DOCDB simple family (application)

EP 95302104 A 19950329; CA 2145721 A 19950328