Means and method of manufacturing bags for breathing apparatus
US3984274A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1975 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Jan 10, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1089
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A bag for breathing apparatus having an internal zigzag passageway between an inlet and an outlet, the bag being formed of flexible material presenting an interior surface of silicone rubber and an exterior surface of a fluoroelastomer based on a copolymer of vinylidene and hexafluoropropylene the means and method of manufacture involving a mounting plate which carries supporting panels for the end wall and partition wall components of the bag, the side walls and bottom wall components of the bag being held in contact with selected margins of the components supported on the panels by a foldable external retaining structure to permit heating of the bag components to a bonding temperature or to permit setting of appropriate adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.