Coupling device
US5402826A · kind A · utility
110Cited by
13References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1994 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Mar 7, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87965
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A coupling device comprises a male coupling member and a female coupling member, each having outwardly extending ends which carry male and female sealing elements, respectively, formed with mating, spherical-shaped surfaces which are effective to force solvent or coating material which may have collected thereon into passageways formed in each of such sealing elements or onto facing surfaces of the coupling members to substantially prevent contamination of new coating material flowing through the coupling device after a cleaning and/or color change operation has been performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.