Sampling/dispensing device with plunger and housing set onto plunger
US7709268B1 · kind B1 · utility
10Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2000 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A positive displacement type substance sampling and dispensing device comprises a central plunger formed from a first material. A plunger housing is formed from a second material having a melting point lower than the first material, the housing being formed by molding and setting the second material on to the surface of the plunger so that the plunger can slide in the housing to draw a substance into it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.