Filtration device in the form of a one-part cartridge intended for pyrotechnic generators
US5268013A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 18, 1992 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Feb 18, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2279/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Gas-filter in the form of an axisymmetric one-part cartridge (1), characterised in that it is essentially constituted by: PA0 a) a rigid ring (2) comprising an axisymmetric lateral wall (21) bounded by a flat-forming extremity (23) and by another, fold-down extremity (24), openings (22) being disposed on the wall (21) between the extremities (23) and (24), PA0 b) a gas-impermeable backing piece (3) surrounding on the outside the lateral wall (21) of the ring (2) by bearing on the plane extremity (23) of the ring (2) and crimped into the fold-down extremity (24) of the ring (2), PA0 c) filter elements (4) disposed between the ring (2) and the backing piece (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.