Coupling for interconnection of coaxial tubing
US5088774A · kind A · utility
27Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | May 7, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A interconnection system for coaxial fluid tubing includes zero-clearance connectors having a metallic innner gasket for sealing an inner passageway for a first fluid and having a elastomeric outer gasket for sealing an outer passageway for a second fluid. The elastomeric outer gasket forms a fluid-tight seal as the connectors are tightened. Further tightening of the connectors engages and seals the metallic inner gasket. Both straight tubing sections and elbows are constructed in a factory setting so that the completed sections can be assembled at a job site without cutting or welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.