Die for continuously manufacturing textured surfaces and methods of manufacture thereof
US11241815B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Sep 20, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C59/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a die assembly comprising a first attachment block having a passage, an inlet port and an exit port; where the passage is operative to transport a molten material from the inlet port to the outlet port; a die; and a conduit; where the conduit comprises a passage that is operative to transport the molten material from the first attachment block to an entry port of the die; where the die comprises a first outer tube; and an extrusion pin that comprises a post and fins; where the extrusion pin is located in the first outer tube using the fins and where the post extends from the fins in a direction away from the entry port of the die; and where the post comprises one or more passages; where at least of these passages open to the atmosphere to provide for pressure equalization; and a travelling template; the template being operative to contact an extrudate that emanates from the die and to transfer a texture to a surface of the extrudate by virtue of pressure applied by a guide tube to the extrudate via the travelling template.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.