Gas cylinder, in particular high-pressure gas cylinder
US10451137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/0236
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas cylinder, in particular a high-pressure gas cylinder, includes a cylinder tube (1) having a piston rod (9) that is passed through a sealing arrangement (13) by which the gas pressure prevailing in the pressure chamber (23) of the cylinder tube (1) is sealed off against the ambient pressure. The sealing arrangement (13) has a compressed oil chamber (33) between a sealing element (31) adjacent to the pressure chamber (23) and another sealing element further away from the pressure chamber (23). Oil can be pressed in the oil chamber by a supply device (51) at a pressure that is equal to or higher than the respective gas pressure prevailing in the pressure chamber (23) of the cylinder tube (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.