CA2106148A1 - Device for resafing an armed mine - Google Patents

Device for resafing an armed mine

Info

Publication number
CA2106148A1
CA2106148A1 CA 2106148 CA2106148A CA2106148A1 CA 2106148 A1 CA2106148 A1 CA 2106148A1 CA 2106148 CA2106148 CA 2106148 CA 2106148 A CA2106148 A CA 2106148A CA 2106148 A1 CA2106148 A1 CA 2106148A1
Authority
CA
Canada
Prior art keywords
resafing
battery
movement
electric motor
conductive state
Prior art date
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.)
Granted
Application number
CA 2106148
Other languages
French (fr)
Other versions
CA2106148C (en
Inventor
Sven Bjelvert
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.)
Saab AB
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
Publication of CA2106148A1 publication Critical patent/CA2106148A1/en
Application granted granted Critical
Publication of CA2106148C publication Critical patent/CA2106148C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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). The device comprises 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.
CA 2106148 1992-10-02 1993-09-14 Device for resafing an armed mine Expired - Fee Related CA2106148C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9202869A SE470484B (en) 1992-10-02 1992-10-02 Device for reinsurance of a reinforced mine
SE9202869-5 1992-10-02

Publications (2)

Publication Number Publication Date
CA2106148A1 true CA2106148A1 (en) 1994-04-03
CA2106148C CA2106148C (en) 2004-11-02

Family

ID=20387349

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2106148 Expired - Fee Related CA2106148C (en) 1992-10-02 1993-09-14 Device for resafing an armed 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
GB9319768D0 (en) 1993-11-10
SE9202869L (en) 1994-04-03
SE9202869D0 (en) 1992-10-02
GB2271170B (en) 1995-10-11
DE4333581A1 (en) 1994-04-07
GB2271170A (en) 1994-04-06
DE4333581C2 (en) 2002-06-13
CA2106148C (en) 2004-11-02
SE470484B (en) 1994-05-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed