SE9202869L - Device for reinsurance of a reinforced mine - Google Patents

Device for reinsurance of a reinforced mine

Info

Publication number
SE9202869L
SE9202869L SE9202869A SE9202869A SE9202869L SE 9202869 L SE9202869 L SE 9202869L SE 9202869 A SE9202869 A SE 9202869A SE 9202869 A SE9202869 A SE 9202869A SE 9202869 L SE9202869 L SE 9202869L
Authority
SE
Sweden
Prior art keywords
resafing
battery
movement
electric motor
conductive state
Prior art date
Application number
SE9202869A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE470484B (en
SE9202869D0 (en
Inventor
Sven Bjelvert
Original Assignee
Bofors Ab
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 Bofors Ab filed Critical Bofors Ab
Priority to SE9202869A priority Critical patent/SE470484B/en
Publication of SE9202869D0 publication Critical patent/SE9202869D0/en
Priority to CA 2106148 priority patent/CA2106148C/en
Priority to GB9319768A priority patent/GB2271170B/en
Priority to DE19934333581 priority patent/DE4333581C2/en
Publication of SE9202869L publication Critical patent/SE9202869L/en
Publication of SE470484B publication Critical patent/SE470484B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/44—Arrangements for disarming, or for rendering harmless, fuzes after arming, e.g. after launch

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Direct Current Motors (AREA)
  • Secondary Cells (AREA)

Abstract

A device for resafing an armed mine (3) comprizes a resafing means (2) for performing a resafing movement in the mine, an electric motor (1) for providing said resafing movement, and a battery (5) for powering the electric motor. An artificial load (8) is connected across the battery (5) and is by means of a timer circuit (4) intermittently transformable from a normally non-conductive state to a conductive state. The artificial load is dimensioned to draw, in its conductive state, substantially as high electric current from the battery as the electric motor (1) draws during the resafing movement. A comparator (12) is provided to compare the battery voltage to a reference voltage (Vref), and to deliver a resafing signal to the electric motor when the battery voltage falls below the reference voltage in order to initiate the resafing movement. <IMAGE>
SE9202869A 1992-10-02 1992-10-02 Device for reinsurance of a reinforced mine SE470484B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9202869A SE470484B (en) 1992-10-02 1992-10-02 Device for reinsurance of a reinforced mine
CA 2106148 CA2106148C (en) 1992-10-02 1993-09-14 Device for resafing an armed mine
GB9319768A GB2271170B (en) 1992-10-02 1993-09-24 A device for resafing an armed mine
DE19934333581 DE4333581C2 (en) 1992-10-02 1993-10-01 Device for securing a sharp mine again

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9202869A SE470484B (en) 1992-10-02 1992-10-02 Device for reinsurance of a reinforced mine

Publications (3)

Publication Number Publication Date
SE9202869D0 SE9202869D0 (en) 1992-10-02
SE9202869L true SE9202869L (en) 1994-04-03
SE470484B SE470484B (en) 1994-05-24

Family

ID=20387349

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9202869A SE470484B (en) 1992-10-02 1992-10-02 Device for reinsurance of a reinforced mine

Country Status (4)

Country Link
CA (1) CA2106148C (en)
DE (1) DE4333581C2 (en)
GB (1) GB2271170B (en)
SE (1) SE470484B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55116270A (en) * 1978-09-25 1980-09-06 Sharp Corp Battery voltage detector
US4488555A (en) * 1982-12-13 1984-12-18 Mieczyslaw Mirowski Battery condition warning system for medical implant
DE3836569A1 (en) * 1988-10-27 1990-05-03 Martin Spies METHOD FOR TESTING THE OPERATING CONDITION OF AN ELECTRIC ENERGY STORAGE OF MOTOR VEHICLES, AND DEVICE FOR IMPLEMENTING THE METHOD

Also Published As

Publication number Publication date
SE470484B (en) 1994-05-24
GB9319768D0 (en) 1993-11-10
CA2106148A1 (en) 1994-04-03
DE4333581A1 (en) 1994-04-07
DE4333581C2 (en) 2002-06-13
CA2106148C (en) 2004-11-02
GB2271170B (en) 1995-10-11
GB2271170A (en) 1994-04-06
SE9202869D0 (en) 1992-10-02

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