Device for sealing a cooling tank for an extruded plastic profile
US9434100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2010 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Jan 4, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for sealing an extruded plastics material profile in at least one of an inlet region and an outlet region of a tank is disposed at an end face of the tank. The device includes a rigid element and a closed annular cross section formed of a resilient material and including a cavity. An outer peripheral shape of the annular cross section is disposed against the rigid element. The annular cross section is alterable by applying a vacuum to the cavity, wherein the annular cross section is configured to be applied to an outside of the plastics material profile. A stretching device is disposed against the rigid element and is configured to stretch the resilient material along an extrusion axis during an alteration of the annular cross section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.