Low-temperature liquefied gas constant outflow device
US4490984A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 14, 1983 |
| Grant date | Jan 1, 1985 |
| Priority date | — |
| Expiry date | Apr 14, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2260/031
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a low-temperature liquefied gas constant outflow device having a heat-insulating container having an opening at the top, a cover member closing the opening of the heat-insulating container, a low-temperature liquefied gas outlet which runs through the base of the heat-insulating container, a level sensor which detects the level of low-temperature liquefied gas in the heat-insulating container, and a vaporized-gas exhaust conduit which opens from the cover member, the improvement wherein a pressure absorbing container is located within the heat-insulating container, a low-temperature liquefied gas supply conduit and a vaporized-gas exhaust conduit are both inserted into the pressure absorbing container through the cover member, a low-temperature liquefied gas outlet is provided in the pressure absorbing container, and a check valve is provided in the low-temperature liquefied gas supply conduit, which opens or closes in response to a signal from the level sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.