Volume adjustable manual pipette with quick set volume adjustment
US7175813B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Mar 8, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/027
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A volume adjustable pipette, comprising a plunger mounted for movement in a housing to and from a stop to aspirate a fluid into and dispense the fluid from a tip extending from the housing. An axially moveable volume setting member in the housing defines the stop and a volume setting for the pipette and is axially moveable by a user turnable volume setting member. Turning of the volume adjusting member also controls a coarse volume setting means and a fine volume setting means, the course volume setting means being responsive to a relatively small turning of the volume adjusting member for moving the volume setting member a relatively large axial distance and the fine volume setting means being responsive to a relatively large turning of the volume adjusting member for moving the volume setting member a relatively small axial distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.