Non-toxic primer mix
US6478903B1 · kind B1 · utility
39Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Jan 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06C7/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A non-toxic primer mix including both bismuth sulfide and potassium nitrate as the pyrotechnic portion of the primer is disclosed. In a further embodiment, a non-toxic primer mix comprising zinc sulfide and aluminum nitrate as the pyrotechnic portion of the primer mix is disposed. Bismuth and zinc sulfide act as fuels for the oxidizers of potassium and aluminum nitrate in providing an ignition flame for the primer. The non-toxic primer mix further contains a lead-free explosive material, and additionally can include added fuels, sensitizers, explosives and binders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.