US 10,744,545 B2Granted

Process for cleaning a transport belt for manufacturing a paper web

AssigneeGPCP IP Holdings LLC

InventorsMark S. Hunter, Dean J. Baumgartner, David Drew Raines, Theodore D. Kennedy, David S. Veldhuizen, Glenn W. Busch, Mitchell S. Edbauer

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Abstract

The disclosure relates to a continuous cleaning method for cleaning a moving fabric in a paper machine. The method uses one or more cleaning stages. In one embodiment, one cleaning stage applies steam to heat and soften contaminants on the fabric followed by the application of water, preferably superheated water, to remove the contaminants. Another cleaning stage may apply hot water, steam and/or superheated water via an encapsulated shower and evacuation chamber making it possible to clean the width of the fabric without substantial rewet.

Claims19

Dependent claims

A papermaking apparatus comprising:

a first cleaning assembly;
a second cleaning assembly;
a fabric to be cleaned travelling in a machine direction through the papermaking machine;
wherein the first cleaning assembly is configured to apply a cleaning medium comprising steam and the second cleaning assembly is configured to apply a cleaning medium comprising superheated water at a temperature of greater than 100° C.;
wherein the second cleaning assembly is located downstream in the machine direction from the first cleaning assembly;
and
wherein the first cleaning assembly and the second cleaning assembly allow application of the cleaning media to the entire width of the fabric to be cleaned.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/142,243Filed 26 Sep 2018 · division
Priority: 11 Apr 2012
Published: US 2019/0022716 A124 Jan 2019
Granted: 18 Aug 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B08B 11/00
Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
B08B 3/022
Cleaning by the force of jets or sprays: cleaning travelling work
B65G 45/22
Cleaning devices: comprising fluid applying means
D21F 1/32
Wet end of machines for making continuous webs of paper: washing wire-cloths or felts

Family

Application61/622,622Us provisional application · filed 11 Apr 2012
Application13/799,721Parent of this division · filed 13 Mar 2013
US 2019/0022716 A1Pre-grant publication · published 24 Jan 2019
US 10,201,840 B2Parent of this division
US 2013/0269734 A1Published application
US 10,744,545 B2This patent

From the US filing history. Foreign family members aren’t listed.