Actuation indicator for a dispensing device
US7500444B2 · kind B2 · utility
37Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2003 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Jan 4, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M15/009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An actuation indicator that includes a drum sub-assembly, which includes a rotatable actuation indicator wheel, a rocking, ratchet pawl for rotating the indicator wheel in a set direction and a rocking mechanism for the pawl driven by a slipping clutch arrangement, is described. The slipping clutch arrangement includes a slipping clutch spring engaged at one end to a pinion of a rack and pinion assembly and at a second end to the ratchet pawl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.