Helical screw conveyor unit, worm shaft, worm extruder, and method for providing a worm shaft
US12304167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Oct 12, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2207/30
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A helical screw conveyor unit, worm shaft, worm extruder and method for providing a worm shaft, wherein the helical screw conveyor unit is an exchangeable element for a helicoidally or spirally winding helix of a worm shaft, having a main body with a helicoidally winding helix element, wherein the helical screw conveyor unit is serviced with little outlay on servicing, the top side of the lateral surface is concavely curved in shell-like form about the longitudinal axis, and the main body has a radial opening for the leadthrough of a fastening region of a worm shaft shank, the helix element has at most one half of one helix turn, the the main body lateral surface has an inner surface for being seated on the fastening region, and the helical screw conveyor unit has at least one fastening element for detachably fastening the main body to the fastening region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.