FR2249306B1 - - Google Patents

Info

Publication number
FR2249306B1
FR2249306B1 FR7404891A FR7404891A FR2249306B1 FR 2249306 B1 FR2249306 B1 FR 2249306B1 FR 7404891 A FR7404891 A FR 7404891A FR 7404891 A FR7404891 A FR 7404891A FR 2249306 B1 FR2249306 B1 FR 2249306B1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7404891A
Other versions
FR2249306A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEDBERG JOHN
Original Assignee
HEDBERG JOHN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HEDBERG JOHN filed Critical HEDBERG JOHN
Publication of FR2249306A1 publication Critical patent/FR2249306A1/fr
Application granted granted Critical
Publication of FR2249306B1 publication Critical patent/FR2249306B1/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
FR7404891A 1973-10-24 1974-02-13 Expired FR2249306B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40924273A 1973-10-24 1973-10-24

Publications (2)

Publication Number Publication Date
FR2249306A1 FR2249306A1 (fr) 1975-05-23
FR2249306B1 true FR2249306B1 (fr) 1977-06-10

Family

ID=23619666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7404891A Expired FR2249306B1 (fr) 1973-10-24 1974-02-13

Country Status (6)

Country Link
US (1) US4106073A (fr)
AU (1) AU487555B2 (fr)
CA (1) CA1008514A (fr)
DE (1) DE2407814A1 (fr)
FR (1) FR2249306B1 (fr)
SE (1) SE7315116L (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416349B (sv) * 1976-05-18 1980-12-15 Nitro Nobel Ab Metod och anordning for initiering av elektriska sprengkapslar
DE2738769C2 (de) * 1977-08-27 1983-02-03 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Aufschlagzünder
SE424182B (sv) * 1980-10-31 1982-07-05 Nitro Nobel Ab Forfarande for initiering av en genom en tryckstot initierbar stubin samt anordning herfor
US4768127A (en) * 1986-05-21 1988-08-30 C-I-L Inc. Ignition system
DE9105437U1 (de) * 1991-05-02 1992-09-03 EURO-Matsushita Electric Works AG, 8150 Holzkirchen Sprengkette
US6260483B1 (en) * 1998-04-24 2001-07-17 Richard N. Snyder Remote radio controlled plasma firing system
US6992877B2 (en) * 2002-03-13 2006-01-31 Alliant Techsystems Inc. Electronic switching system for a detonation device
US7370513B2 (en) * 2002-03-28 2008-05-13 Orica Explosives Technology Pty. Ltd. System and method for monitoring features of a blast

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB890146A (en) * 1959-06-03 1962-02-28 Ici Ltd Improvements in exploders
FR1281112A (fr) * 1961-02-21 1962-01-08 Exploseur électrique
BE633460A (fr) * 1962-06-15
US3417306A (en) * 1965-02-09 1968-12-17 Bendix Corp Regulated voltage capacitor discharge circuit
US3418557A (en) * 1966-03-02 1968-12-24 Technipower Inc Voltage control system involving timed energization of a pair of power handling transistors
US3409804A (en) * 1966-08-25 1968-11-05 Hi Shear Corp Ordnance control circuit

Also Published As

Publication number Publication date
SE7315116L (fr) 1975-04-25
FR2249306A1 (fr) 1975-05-23
DE2407814A1 (de) 1975-04-30
AU6554374A (en) 1975-08-14
AU487555B2 (en) 1977-10-11
US4106073A (en) 1978-08-08
CA1008514A (en) 1977-04-12

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse