Shut-off system for a dispenser
US9950330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jul 27, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/0072
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A shut-off system for a dispenser includes a pinch member that moves relative to a guide and which is normally biased against a flexible outlet tube that is disposed therebetween. The flexible outlet tube that carries material, such as soap, supplied from a pump to an outlet nozzle. The pump and the pinch member are in operative engagement with an actuator, such that when the actuator is not engaged, the pinch member closes the outlet tube to prevent residual material retained in the outlet tube from flowing or drooling out of the outlet nozzle. Correspondingly, when the actuator is engaged, the pump is compressed, and the pinch member is moved away from the outlet tube, allowing the material to be pumped through the outlet tube and dispensed from the outlet nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.