Method for making plural chambered dispensing tubes
US6210621A · kind A · utility
8Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1998 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Dec 4, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plural-chambered dispensing tube is made by a method involving molding a molten resin material into a tube head while a pre-finished tube body having a partition disposed therein is disposed within the molten resin material. Thus, the pre-finished tube body and partition become connected to the tube head as the latter is being molded. In this way, the tube body and the partition are molded into the tube head to form a uniform seal between the partition and the tube head and to improve the separation of the stored components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.