EP 0015697 A1 19800917 - Non-electric delay detonator and assembly of a detonating cord and a delay detonator.
Title (en)
Non-electric delay detonator and assembly of a detonating cord and a delay detonator.
Title (de)
Nichtelektrischer Verzögerungszünder und Zusammensetzung eines solchen Verzögerungszünders mit einer Detonationszündschnur.
Title (fr)
Détonateur non-électrique du type à retard et ensemble composé d'un tel détonateur à retard et d'un cordeau détonant.
Publication
Application
Priority
US 1528879 A 19790226
Abstract (en)
A non-electric delay detonator adapted for field-assembly with a low energy detonating cord (21) has an expansion shell (10) into which the cord is inserted at the time of use. The pressure pulse resulting from the detonation of the cord causes the shell (10) to expand and an ignition charge (11) which is disposed between the shell (10) and a rigid capsule (6) to be actuated as a result of sudden compression between the expansion shell and the capsule. The burning ignition charge ignites a delay charge (5), which in turn ignites a priming charge (3), causing a base charge (2) to detonate. The presence of ignition charge in the annular spacing between the shell and capsule walls, as well as between the shell and capsule ends, and the proper positioning of cord-gripping means (15) in shell cavity (13), assure actuation of the ignition charge whether or not the cord is shoved to the bottom of the shell (10).
IPC 1-7
IPC 8 full level
F42B 3/10 (2006.01); C06C 7/00 (2006.01); F42B 3/11 (2006.01); F42B 3/16 (2006.01); F42B 3/26 (2006.01); F42D 1/04 (2006.01)
CPC (source: EP KR)
C06C 7/00 (2013.01 - KR); F42B 3/16 (2013.01 - EP); F42B 3/26 (2013.01 - EP); F42D 1/04 (2013.01 - EP)
Citation (search report)
- BE 863290 A 19780725 - DU PONT
- US 3106892 A 19631015 - JAY MILLER ROSS
- DE 1771518 A1 19711223 - DYNAMIT NOBEL AG
- US 3945322 A 19760323 - CARLSON BERTIL V, et al
- DE 1153307 B 19630822 - DYNAMIT NOBEL AG
- GB 982364 A 19650203 - CANADIAN IND
- FR 1266290 A 19610707 - MONTEDISON SPA
- DE 442119 C 19270321 - JOHANN KRANNICHFELDT
- US 2796024 A 19570618 - SWAIM FRANK H
- US 1810000 A 19310616 - WOODBERRY JOHN H
- US 3776135 A 19731204 - ZEBREE D
- GB 197309 A 19231108 - AIR LIQUIDE
Designated contracting state (EPC)
AT BE CH DE FR GB IT SE
DOCDB simple family (publication)
EP 0015697 A1 19800917; AU 5581180 A 19800911; BR 8001018 A 19801029; CA 1150104 A 19830719; ES 488912 A0 19810216; ES 8103369 A1 19810216; GB 2044415 A 19801015; GR 67214 B 19810624; JP S55116698 A 19800908; KR 830001834 A 19830519; MA 18742 A1 19801001; NO 800516 L 19800827; OA 06478 A 19810731; PL 222219 A1 19810130; PT 70865 A 19800301; PT 70865 B 19810630; ZA 80340 B 19810325; ZM 2380 A1 19810721
DOCDB simple family (application)
EP 80300544 A 19800225; AU 5581180 A 19800222; BR 8001018 A 19800221; CA 346177 A 19800221; ES 488912 A 19800225; GB 8006265 A 19800225; GR 800161283 A 19800226; JP 2175680 A 19800225; KR 800000766 A 19800225; MA 18939 A 19800214; NO 800516 A 19800225; OA 57038 A 19800226; PL 22221980 A 19800223; PT 7086580 A 19800225; ZA 80340 A 19800121; ZM 2380 A 19800221