Tip for a vacuum pipette
US4981315A · kind A · utility
10Cited by
17References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1990 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53191
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tip having a flattened part (1b) which has a suction gripping (1b2) at the end, which is raised very slightly to reduce the contact surface of the wafer and prevent it from touching the rest of the flattened part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.