Elastomer mixing unit
US5882112A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Jul 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B7/7495
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mixing unit for mixing rubber has a mixing chamber and at least one rotor positioned therein. A drive, for driving the at least one rotor, is positioned exterior to the mixing chamber. The at least one rotor has a shaft penetrating outwardly from the mixing chamber and connected to the drive. An inlet opening is positioned at the top side of the mixing chamber. A first closure closes the inlet opening. An outlet opening is positioned at the bottom of the mixing chamber and can be closed by a second closure. At least one first connector is provided for affecting pressure in the mixing chamber. An air-tight enclosure for the shaft penetrating from the mixing chamber is provided. The enclosure has at least one second connector for affecting pressure in the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.