Filling containers with gas
US6135170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1999 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Nov 18, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/05
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Methods and apparatus for filling containers with a gas or gas mixture under pressure are disclosed. The apparatus comprises a fixed volume vessel for containing the gas at a pressure P.sub.1, a line extending from the fixed volume vessel to a buffer volume vessel which has a capacity greater than the volume of the container to be filled, a pressure controller for controlling the pressure of the gas in the line so that the gas reaches the buffer volume vessel at a pressure P.sub.2 which is less than P.sub.1, a further line extending from the buffer volume vessel to at least one filling nozzle, and a valve located in the further line for controlling the flow of gas from the buffer volume vessel to the gas capsule to be filled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.