Liquid handling device with surface features at a seal
US7246551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2004 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Jun 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1039
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample handling tool includes a body having at least one plunger associated with a channel and arranged for axial movement within the channel. A seal is provided in the channel and sealingly engaged with a contact surface. The contact surface may include a surface feature, such that when contact surface moves, the seal and surface feature come into at least partial contact with one another. The seal may include an elastomeric member, such as an O-ring or X-ring, and the contact surface may be formed from any suitable material, including ceramic. The surface feature may take on a variety of forms including any suitable texture, surface porosity or include one or more grooves, holes, recesses, indentations, bumps, protrusions, etc., or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.