Patent · US Active

Method for manufacturing a machine felt, and machine felt

US8083898B2 · kind B2 · utility

2Cited by

9References

39Claims

0Family size

Assignee

Heimbach GmbH & Co. KG · DE

Inventors

Walter E. Best · Indianapolis, US
Axel Burmeister · Hamburg, DE
Christian Molls · Aachen, DE

Key dates

Filing date	Dec 4, 2008
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Jan 15, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/59
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for manufacturing a machine felt. Firstly a tube having a longitudinal yarn layer is manufactured with a peripheral length double the length of the machine felt, and a width that corresponds to the width of the machine felt. The tube is compressed into a flattened tube with the formation of longitudinal yarn loops which are exposed by the removal of fibers of a fiber batt layer. An auxiliary substrate web is manufactured with a width that is less than that of the machine felt; for the longitudinal yarns and/or for the auxiliary substrate web, a material is used that absorbs laser energy; the longitudinal yarns are brought together with the auxiliary substrate web and connected by a laser beam; the auxiliary substrate web is helically wound until the tube is formed; and upon exposure of the longitudinal yarn loops, the auxiliary substrate web(s) are also removed.

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