Method of forming an oral care implement
US9802347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Aug 5, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system or method of forming an oral care implement and an oral care implement formed thereby comprising a base structure having a handle portion and a head portion. The method may comprise providing a first mold that defines a first mold cavity having a first portion that corresponds to the handle portion and a second portion that corresponds to the head portion; injecting a first material into the first portion of the first mold cavity via a first injection orifice with a first hot runner sub-system; and injecting a second material into the first portion of the first mold cavity via a second injection orifice with a second hot runner sub-system, the second material being injected into the first material thereby forming the base structure, the second material forming a core component and the first material forming a shell component of the base structure that surrounds the core component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.