Dispensing syringe
US6571992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/761
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispensing syringe (10) has a barrel (20) keyed (31, 32) to a gripping assembly (40) having complementary keyed surfaces (42). A nut having dual threads (61, 62) of differing diameters is threaded to one end of the barrel (20) and receives a matingly threaded (71) plunger (70). Turning the plunger (70) causes it to advance within the barrel (20) due to the interaction of the mating threads (61, 71). The gripping assembly (40) is provided with winged projections (50) that facilitate handling and manipulation of the syringe (10). The complementary keyed surfaces (31, 32 and 42) physically interact so as to prevent the gripping assembly (40) from turning or twisting about the barrel (20) during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.