Initiator systems

• US 3,358,601 A
• Filed: 06/29/1966
• Issued: 12/19/1967
• Est. Priority Date: 06/29/1966
• Status: Expired due to Term

• Current Assignee: David J. Dittmann, Donald P. Graham, Hiram E. Driscoll
• Original Assignee: David J. Dittmann, Donald P. Graham, Hiram E. Driscoll
• Inventors: Dittmann, David J., Driscoll, Hiram E., Graham, Donald P.
• Application Number:
  US04/561,550
• Time in Patent Office: 538 Days
• US Class Current: 102/318
• CPC Class Codes: F42B 3/00 Blasting cartridges, i.e. case and explosive fuse cords, e.g. detonating fuse cords C06C5/00; chemical aspects of detonators, blasting caps or primers C06C7/00
• CPC Class Codes: F42B 3/10 Initiators therefor percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12
• CPC Class Codes: F42B 3/12 Bridge initiators F42B3/103, F42B3/11, F42B3/195 take precedence; electric ignitors in propellant charges F42C19/12
• CPC Class Codes: F42B 3/192 designed for neutralisation on contact with water
• CPC Class Codes: F42D 5/00 Safety arrangements
• CPC Class Codes: F42D 5/04 Rendering explosive charges harmless, e.g. destroying ammunition F42B39/14 and F42B39/20 take precedence ; extracting primers, dismantling ammunition F42B33/04, F42B33/06 ; chemical deactivating of explosives C06B21/0091; Rendering detonation of explosive charges harmless
• CPC Class Codes: F42D 5/05 Blasting mats

Claims

1. AN INITIATOR SYSTEM OF THE BLASTING CAP AND BOOSTER TYPE, FOR INITIATING EXPLOSIVES IN WATER-COVERED AREAS, WHICH COMPRISES AN ELONGATED CLOSED SHELL, AND A BASE EXPLOSIVE CHARGE WITHIN SAID SHELL, AS AT LEAST ONE LIVE INTITIATOR COMPONENT OF SAID SYSTEM, EXTENDING FROM THE SHELL CLOSURE AT ONE END OF SAID SHELL TOWARD THE OPPOSITE END THEREOF;

SAID SHELL CONTAINING A PASSAGEWAY IN THE SAID CLOSURE ENE ADJACENT SAID BASE CHARGE TO COMMUNICATE SAID BASE CHARGE WITH THE OUTSIDE OF SAID SHELL;

THE SIZE OF SAID PASSAGEWAY BEING CORRELATED WITH AT LEAST ONE LIVE COMPONENT WITHIN SAID SHELL TO CONVEY FLOW OF WATER FROM OUTSIDE SAID SHELL TO THE SHELL INTERIOR TO CAUSE DESENSITIZATION OF THE LAST SAID COMPONENT AFTER A PRE-