System and method for forming an oral care implement
US10723052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jun 23, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for forming an oral care implement and an oral care implement formed thereby. The system may include a first mold defining a first mold cavity having a first mold cavity axis; first and second injection orifices formed into the first mold and providing passageways directly into the first portion of the first mold cavity, the second injection orifice being spaced apart from the first injection orifice; first and second hot runner sub-systems fluidly coupled to the first and second injection orifices, respectively; wherein the system is configured to dispense the first material into the first portion of the first mold cavity via the first injection orifice, and after passage of a period of time, to subsequently dispense the second material into the first portion of the first mold cavity via the second injection orifice, the second material being injected into the first material to displace the first material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.