Self-seating self-sealing labware adapter
US5901873A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Apr 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2005/0435
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A labware adapter having a tubular body with upper and lower spaced apart annular collars, serving to guide the adapter into a rotor bore, while at the same time defining a fluid reservoir between the two collars and the inside wall of the rotor. The upper collar has peripheral indentations through which fluid can pass for ingress into the reservoir in the event of sample leakage from the internal portion of the adapter. The lower collar has a vent channel for allowing fluid to move past the collar, for example on insertion of the adapter into a rotor bore. The indentations, vent channel and reservoir all provide mass relief for the adapter, lowering the overall moment of inertia for the adapter, compared to one fitting into the same bore with a smooth tubular shape. The tubular body has an annular ridge above the upper annular collar defining seal glands so that a cylindrical cap can be fit over the ridge in sealed relation with the tubular body. The cap is threadless and is pressed over elastomer seals in the seal glands. Centrifugal loading of the cap onto the tubular body enhances sealing action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.