Sven William Bjelvert

Title: Sven William Bjelvert: Inventor of Magnetic Land Mine Safety Devices

Introduction

Sven William Bjelvert is an inventor associated with Eskilstuna, Sweden. His recorded work includes inventions involving magnetic sensing and land mine detonation mechanisms. He is credited with 3 patents and is associated with Forenade Fabriksverken.

Latest Patents

One of Bjelvert’s latest patents, “Arrangement for a Land Mine,” describes a mine equipped with at least one magnetic field sensing device. A magnetic body is placed loosely beneath the mine, so lifting the mine separates it from the body and changes the magnetic field. The sensing device detects this change and initiates detonation.

Another patent, “Magnetic Land Mine Device,” describes a device designed to detonate a magnetic land mine when it is removed from the ground. It includes a magnetic field sensing device, an annular tube positioned nearby, and a magnetized ball that moves within the tube.

Career Highlights

Bjelvert’s patent work focuses on mechanisms that use magnetic field changes to trigger land mine detonation. The described designs combine sensing components with physical arrangements intended to respond when a mine is disturbed or removed.

Collaborations

Bjelvert’s listed coworkers include Goran Olofsson and Sven Torsten Svensson. The available information identifies these professional associations but does not specify particular joint patents or projects.

Conclusion

Sven William Bjelvert’s recorded inventions reflect a focused contribution to magnetic sensing mechanisms for land mines, with three patents associated with his work and Forenade Fabriksverken.