Pump dispensers
US10549299B2 · kind B2 · utility
2Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Apr 18, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A pump dispenser has a deformable pump chamber constituted by first and second part-chambers each having a respective resiliently deformable faceted chamber wall and a connecting conduit communicating between them. They may be moulded in one piece and require no separate restoring spring. The first and second part-chambers may be disposed in line between a pump body providing an inlet valve from a container and a movable actuator cap providing a valved outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.