Frangible article
US4921250A · kind A · utility
69Cited by
8References
30Claims
0Family size
Inventor
Key dates
| Filing date | Oct 17, 1988 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Oct 17, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/712
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A frangible article for use as a target or a projectile is disclosed which is formed of a mixture of sand and decomposable binder shaped and cured to create a rigid, durable article which will fracture upon impact. Several preferred binder compositions and the method of forming a frangible target are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.