Protective shields
US4413357A · kind A · utility
Inventor
Key dates
| Filing date | Jan 7, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Jan 7, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41H1/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A protective shield such as a personal, bullet-proof garment, formed by a separable front panel and back panel, fastened together into a vest by detachable tabs, is conformable to torso movement with comfort. The outer, penetration--resisting, layer of the shield comprises at least eight and preferably twentyeight, individual superposed plies of close woven fabric of aramid fibres, the intermediate, impact-spreading layer of the shield, comprises at least one ply of thin, flexible, impervious plastic sheeting such as polycarbonate and the inner, impact-cushioning, layer of the shield is formed of soft, relatively thick, foam plastic, to absorb impact and bullet bulge of the polycarbonate sheeting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.