System and method for adjusting the land channel length on an extrusion die
US10821643B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2017 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | May 8, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2007/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An extrusion die with adjustable land channel can be formed of a die body that includes a first die body portion and a second die body portion, a first lip body, a second lip body, and a land channel body. The extrusion die can have a flow channel that includes a land channel terminating in an outlet orifice. The flow channel may be bound on one side by the first die body portion, the land channel body, and the first lip body. The flow channel may be bound on an opposite side by the second die body portion and the second lip body. In some examples, the length of the land channel is adjustable by configuring the land channel body and/or first lip body to move across the width of the flow channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.