Dispenser for flowable materials
US5547107A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1993 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jan 4, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/76
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispenser for flowable materials includes an outer barrel which is telescoped over a plunger. A piston head may be separate and distinct member from the plunger itself and may be prepackaged in the barrel with the material to be dispensed located in a chamber above the piston head. When the barrel is telescoped over the plunger, the piston head seats on the plunger and forces fluid from a dispensing spout in the barrel. The piston head carries a sealing rim which creates a seal as the barrel is moved downwardly on the plunger. The barrel may be in the form of a cartridge mounted in a jacket-like holder with a seal between the cartridge and holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.