Gas blanketed liquid storage system, gas pressure regulation device, counterspring regulator and process for gas blanketing a liquid storage vessel
US5423344A · kind A · utility
Inventor
Key dates
| Filing date | Jan 28, 1994 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Jan 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7831
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system, device, regulator and process for gas blanketing under precise gas pressure control is provided herein exhibiting extreme pressure sensitivity, position flexibility, smooth gas shutoff, for regulating the pressure of liquid storage vessels having vapor phases therein, and optionally being useful for gas blanketing of other units requiring positive gas pressures therein, such as pressurized rooms, duct, housings, such as computer housing, and the like, at pre-selected pressures of between 0.01 inches of water column and 15 inches of water column, with pressure sensitivities responsive to pressure changes of 0.01 inches of water column within a predetermined pressure set point. The system is compact, self contained, and requires no external source of power other than the supply pressure, which can range from about 10 psig to 1,000 psig. The system, device and regulator are not position sensitive, and may be properly operated in any orientation. The system, device and regulator are also resistant to clogging and have a minimum number of parts thereby minimizing cost and the risk of part failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.