Apparatus for substantially simultaneously forming multiple articles having different properties
US6679696B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/805
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus is provided that includes a mold that includes a first cavity defining a toothbrush body, a first injection unit in fluid communication with the first cavity and a second cavity, and a second injection unit also in fluid communication with the first cavity. An apparatus is also provided that includes a mold that includes a first cavity defining a toothbrush body, a second cavity defining a toothbrush body, where the first cavity and the second cavity define substantially identical toothbrush bodies, a first injection unit in fluid communication with the first cavity and a second injection unit incapable of being in fluid communication with the second cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.