Controlling assembly for adjusting lip gap
US6287105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An extrusion apparatus including a flex lip and a reciprocally movable actuator bar for adjusting the lip gap, is disclosed. Axial movement of the actuator bar advantageously results in control across the full width of the lip gap. In one aspect of the invention, a handwheel or motor is positioned opposite the output end of the extrusion apparatus. In another aspect of the invention, a rotatable shaft of a control assembly is beneficially disposed generally perpendicular to direction of movement of the actuator bar, and advantageously a portion of the shaft is received within an endplate of the extrusion apparatus. In a variation, a control assembly simultaneously exerts a pulling force on one end of the actuator bar and a pushing force on the opposite end of the actuator bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.