Dosage dispensing device for powders and pastes
US8245883B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2007 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Apr 26, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J2200/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dispensing head for a powder or paste dosage material has a housing with an outlet opening, a bearing- and passage area, and at least one socket connected to a source container. A feeder chute is formed inside the housing. A closure shaft is in the bearing- and passage area, free to rotate about and to slide along its central longitudinal axis. The closure shaft is connected to a closure element arranged near the outlet opening. Moving the closure shaft in the axial direction controls the volume flow of the dosage material through the outlet opening. A limit stop restricts the displacement of the closure shaft along its central longitudinal axis. In the feeder chute, an opposing stop defines the closed position where the limit stop rests in direct contact against the opposing stop and the outlet opening is closed off by the closure portion of the closure element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.