Method of charging and hermetically sealing a high pressure gas vessel
US4538395A · kind A · utility
7Cited by
7References
1Claims
0Family size
Inventors
Key dates
| Filing date | Nov 24, 1982 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Nov 24, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2227/0107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus for and method of charging and hermetically sealing a small pressure vessel for confining therein a highly pressurized gas for a shelf life of several years. The vessel has a boss or neck with a very small opening extending longitudinally therethrough defining a fill connection which terminates in a small sharp edged cylindrical lip at its outer extremity into and around which a ductile metal is extruded under pressure for establishing a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.