Method of blowmolding a container having an integral inner dispensing outlet
US4539172A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/0075
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for forming, filling and hermetically sealing a blowmolded container having a sterile integral inner dispensing outlet, all in a single sterile operation. The method is directed toward establishing a preferably hermetic seal between the inner dispensing outlet and the container neck, by establishing the seal early in the blowmolding cycle. This is accomplished by mounting the dispensing outlet-defining tubular member about a unique fluid supply mandrel. The supply mandrel thereby also serves as a check and the tubular member of the to-be-formed container serves as a tool in blowmolding. The dispensing outlet/container neck seal is thus formed before the blowmolding step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.