Self-sealing pump and methods of manufacture and use thereof
US12138643B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Mar 14, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1074
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are self-sealing actuators and pumps for distributing fluids such as personal care products. The actuator can include a nozzle having an outlet that is opens and closes via movement of a plug. A limit rod is configured to engage with the plug and upon actuation the assembly opens a passage for the fluid to flow through an inner channel of the limit rod and to the outlet. Upon de-actuation, the assembly closes the passage sealing the fluid within a closed environment to prevent degradation and caking. Actuators and pumps as described protect the performance of active ingredients within the fluid and prevent the nozzle and outlet from blocking with dried or caked fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.