Swivel bayonet joint for cryogenic fluids
US6134893A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1999 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Apr 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/904
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and system for dispensing cryogenic fluids, such as liquified natural gas (LNG), using a swivel bayonet joint interconnecting first and second sections of cryogenic pipe. The swivel bayonet joint includes a male bayonet joint and a corresponding female bayonet joint. An insertion stem of the male bayonet joint is dimensioned to have a very high tolerance fit within the receiving sleeve of the female joint that extends a sufficient length for formation of a vapor trap by the cryogenic fluid between the insertion end of the stem and the clamp end of the receiving sleeve. The vapor trap prohibits movement beyond the vapor trap of any cryogenic fluid passing through the joint, consequently, elastomeric seals in the bayonet joint remain insulated from extremely cold temperatures of the cryogenic fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.