Degradable practice mine
US6539871B2 · kind B2 · utility
0Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Mar 29, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B8/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a degradable practice mine including the steps of covering a flat work surface with a polyethylene sheet to serve as a release film, weighing out the materials in a ratio of 10 parts sand to 1 part polyvinyl alcohol (PVA), mixing 1 part PVA with 10 parts sand making a sand/PVA mixture, filling a mold with the sand/PVA mixture, consolidating the sand/PVA mixture to make a consolidated form in the shape of a mine, and heating the consolidated form to make a hardened mine form mimicking the shape and launching characteristics of a tactical mine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.