Sealed coupling for a fluid container
US5299608A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1993 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Jun 28, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/314
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A coupling arrangement connects a container of concentrated cleaning fluid to a dispensing apparatus in a carpet cleaning machine. To facilitate the required fluid connection, the container is fitted with a plug having one port at its center and a second port radially disposed from the center port and positioned within an annular groove concentric with the center port. The distance from the center port to the second port in the plug is equal to the distance between corresponding central and radial ports in the dispenser. When the container is rotated to engage the dispenser and advance it into position, the center port of the plug and central port of the dispenser align since they are on the same axis. The radial port of the dispenser is aligned with the annular groove in the plug, enabling fluid communication with the second port in the plug irrespective of the rotational orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.