Process, apparatus and system for creating extrudable material having color effects and products made with extrudable material created with same
US10525613B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2015 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Apr 14, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B34/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and associated system for creating color effects in extrudable material, such as plastic and metal for example, are presented. Flows of first and second viscous materials of respective colors are provided and then combined in a predetermined pattern to form a stream of combined viscous material. In a first aspect, the flow rate of the first viscous material is caused to vary over time in order to vary an amount of the first viscous material in the stream. In a second aspect, which may be used alone or in combination with the first aspect, the first and second viscous materials have distinct viscosities to reduce an amount of color blending between the first color and the second color in the stream of combined viscous material. A static mixer may then be used to apply a predetermined dividing, overturning and combining motion to the stream of combined viscous material to partially mix the first viscous material and the second viscous material, such that upon exiting the static mixer, the first material of the first color and the second material of the second color form a color pattern in the stream of combined viscous material. Sheets of extrudable material may be created …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.