Dispenser for dispensing creams and especially self-foaming gels
US4487341A · kind A · utility
6Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1981 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Oct 1, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/763
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dispenser comprising a container having a neck provided with an outlet spout. A dip tube nozzle by use of a finger button is slidably mounted in the container and has a delivery opening alignable with the spout. Serrated teeth are formed on the container and dip tube and a piston is movably mounted on the dip tube for being depressed downwardly to force product up the dip tube. The piston is retained in the lowered position by the serrated teeth engaging a flexible disc while the dip tube is returned to a raised position by a suitable spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.