Patent · US Active

Material conveying screw and method for producing same

US11260648B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN · FR

Inventors

Christophe Ougier · Antony, FR
Arnaud Letocart · Clermont-Ferrand, FR

Key dates

Filing date	Dec 16, 2016
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Jul 11, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A screw having a longitudinal body and, around this longitudinal body, at least one flight extending in the shape of a helix, the flight including, over part of its length, internal partitioning delimiting a plurality of internal channels that extend in the shape of helices following the helix shape of the flight. The screw includes manifold-like cavities into which the ends of the interior canals open, the manifold-like cavities extending radially and opened into a longitudinal bore of the body at longitudinally spaced locations. This screw can be produced by additive manufacturing using laser-induced fusion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.