Method and apparatus for filling cryogenic liquid cylinders
US4475348A · kind A · utility
15Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1982 |
| Grant date | Oct 9, 1984 |
| Priority date | — |
| Expiry date | Jul 26, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2250/0636
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are disclosed for filling a portable cryogenic liquid cylinder from a large stand tank. The invention employs a regulator valve to perform an automatic throttling function whereby the pressure in the liquid cylinder is maintained at a value slightly lower than the upstream pressure in the stand tank. This significantly reduces filling losses due to flashing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.