Vacuum adapter for maintaining fluid in a vessel
US6234188A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | May 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86823
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An adapter for connection to an opening in a fluid containing vessel for applying a vacuum to the interior of the vessel is provided. The adapter includes at least partially concentrically disposed outer and inner sleeves, each having a generally conical shape and a generally radially extending opening in a side wall thereof. The inner and outer sleeves are rotatable relative to each other such that the extent to which the openings in the side walls of the inner sleeve and outer sleeve are aligned can be selectively adjusted. The inner and outer sleeves define a passage through the adapter extending from a proximal opening at a proximal end to a distal opening at a distal end of the adapter. The proximal end of the adapter is configured for connection to a vacuum source and the distal end is configured for insertion in and to sealingly engage the edge of the opening in the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.