Planetary gear for a multiple-screw extruder
US5510073A · kind A · utility
65Cited by
10References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Apr 13, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A planetary gear for a multiple-screw extruder includes a circular stationary housing having internal teeth, a sun wheel formed from at least one toothed portion of a spindle, and a plurality of main planet wheels formed from at least one toothed free end of a plurality of screws and arranged in a circle. The plurality of main planet wheels are spaced from one another, from the sun wheel and from the internal housing teeth. A plurality of internal and external intermediate planet wheels are arranged between the sun wheel and the main planet wheels and between the main planet wheels and the internal housing teeth, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.