Liquid dispensing syringe
US9958067B2 · kind B2 · utility
4Cited by
56References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2007 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Aug 27, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31516
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe for dispensing liquid materials to a substrate. In one embodiment, the syringe includes a barrel having a first end, a second end, and an interior reservoir. A piston is slidably disposed within the reservoir and is movable to increase or decrease a volume of the interior reservoir near the first end of the barrel. A first end of the piston has a hemispherically-shaped surface profile, with an elongated apex extending therefrom, to dispense liquid from the first end of the barrel when the piston is moved in a direction toward the first end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.