Metering dispenser for flowable compositions
US11938507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2021 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Apr 10, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/055
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Metering dispensers include a body configured to hold a flowable composition in a chamber, a drive screw coupled to the body, and a plunger threadingly coupled to the drive screw. The plunger includes at least two annular lips that form a fluid seal with the chamber as the plunger travels along the drive screw through the chamber. A base is rotationally coupled to the body with a cam that contacts at least one tab extending externally from the body so that the tab enters at least one low point on the cam by traveling over a trailing edge of the low point, and the trailing edge then prevents the tab from exiting the low point in the direction of the trailing edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.