Patent · US Active

Apparatus for making melt-blown multilayer nonwoven

US11708647B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

PARAT BETEILIGUNGS GMBH · DE

Inventors

Raphael HERMES · Niederkassel, DE
Markus WUESCHT · Rheinbach, DE

Key dates

Filing date	Mar 2, 2021
Grant date	Jul 25, 2023
Priority date	—
Expiry date	Aug 14, 2041

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD04H3/16
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An apparatus for making nonwoven has a mesh belt moving in a horizontal direction and upstream and downstream spinnerets spaced apart in the direction above the belt and having downwardly opening tips at respective vertical spacings above the belt and each emitting fibers that are deposited at locations on the belt directly below the spinnerets to form thereon respective nonwoven layers. A support carrying the belt can be moved vertically and pivoted to orient the belt into a position forming an acute angle with respect to horizontal and thereby vary the spacings.

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