Patent · US Active

Mouthpiece for extruding a molding compound into a formed body, and method for producing a mouthpiece of this type

US11712817B2 · kind B2 · utility

0Cited by

10References

20Claims

0Family size

Assignee

Nanostone Water Inc. · US

Inventors

Daniel Ahlers · Quedlinburg, DE
Michael Leistner · Stuttgart, DE
Dagmar Wolff · Ditfurt, DE
Christian Goebbert · Eschau, DE
Bernd Koecher · Adersleben, DE
Juergen Knopke · Brieskow-Finkenheerd, DE

Key dates

Filing date	Jun 10, 2021
Grant date	Aug 1, 2023
Priority date	—
Expiry date	Nov 18, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C48/3003
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A mouthpiece (10) for extruding a molding compound into a formed body which has internal channels, comprises: a mouthpiece frame (14) with a frame opening (16); a first core retaining plate (22) which is fastened in the area of an upstream end of the frame opening (16) when viewed in the flow direction (15) of the molding compound; and a plurality of longitudinal cores (28) which are axially and laterally held by an upstream end section (26) on the first core retaining plate (22). It is proposed that, furthermore, it comprises a second core retaining plate (36) which is loosely arranged downstream of the first core retaining plate (22) relative to the mouthpiece frame (14) in the flow direction (15), and in which the areas (32) of the cores (28) farther from the upstream end section (26) are arranged to be radially fixed but axially loose.

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