Metered dose topical applicator
US12329923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2020 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jul 15, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/055
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A topical applicator of the propel/repel type includes an expandable reservoir with a port, an attachable applicator tip, and a metered dosing system. The reservoir can be a cylindrical housing with a movable elevator movable by a drive mechanism that is initially not engaged to allow filling of a flowable compound through the port, moving the elevator. An actuator, such as a rotating ring or pushbutton may engage the drive mechanism. The drive mechanism can include a one-way ratcheting feature. Metered doses can be dispensed through a hole or holes in the applicator tip by rotating a dosing knob or pushing a pushbutton causing the drive mechanism to advance the elevator. The drive mechanism and the action to dispense metered doses can be combined into a single motion. The drive mechanism can include detent positions that correspond to discrete doses, and can also provide audible and tactile feedback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.