Dispenser for paste material
US4775080A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1986 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/765
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is provided a dispenser for paste material, such as tooth paste, having a movable piston disposed in the dispenser casing below the paste material adapted to move in the direction of the nozzle opening and prevented from moving in the opposite direction by a first locking mechanism, and a push button for the displacement of an upper pressure cover which is disposed inside the dispenser casing above the material and which is coupled with the piston through a rod which penetrates and is force locked with the piston by means of a second locking mechanism working opposite to the first locking mechanism. A guide piece is provided which is connected with the rod and the pressure cover and extends above the pressure cover, passing through a guide opening in the casing top surmounting the pressure cover. The guide piece is connected to the push button mounted in the casing top.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.