Rotor with anti-wear device and fixation system
US12296505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2020 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Apr 14, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B7/7461
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In the field of mixing rubber mixtures, a rotor (100), for use in an internal mixer having a mixing vessel in which the rotor rotates, includes one or more blades (104), each blade having a tip (104a) with a profile having a predefined curvature and an anti-wear device detachably fixed to the tip (104a) of at least one blade. The anti-wear device includes a plate (110) with a profile defined by a lower surface (112) with a curvature complementary to that of the tip (104a) and an upper surface (114) with a curvature complementary to that of a wall of the vessel to define, between them, a zone of minimum distance that allows a passage of the mixture between the plate (110) and the wall of the vessel. One or more fastening systems (135) are fitted and tightened with respect to the plate (110) so as to engage the rotor (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.