Dispenser utilizing a follower and delivery device for dispensing pastes, creams, etc.
US4323175A · kind A · utility
Inventor
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1016
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser for cream, sauces, jelly, pastes, syrups or the like which has a main cylinder and a guide cylinder coaxially arranged within it. The annular space between the cylinders is divided into an intake space and a feed space by a displacement piston which allows for drawing the material to be dispensed from a container through an intake passage in the main cylinder and discharging the material through an outlet opening in the forward end of the main cylinder. A closure element is normally biased against the outlet opening and a plunger is provided at the rear end of the main cylinder, bearing against the piston and normally biased in the outward position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.