Method and a system for monitoring structural changes of a fiber web

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7942057
APP PUB NO 20090120190A1
SERIAL NO

12158525

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method for monitoring the structural state of a fiber web (1) that is being processed by a fiber web processing machine comprising a fiber web processing station (2) is described. The method comprises the steps of arranging a generator (5) and a detector (6) of a generator-detector unit (4) on opposite sides of the traveling fiber web (1) downstream of the fiber web processing station; bringing the generator to emit an ultrasonic wave; bringing the detector to receive the ultrasonic wave; sending a signal representing the received ultrasonic wave to a control unit (10); and, in the control unit, analyzing the signal and extracting a value from the signal representing a measure of the received ultrasonic wave. A system for monitoring the structural state of a fiber web is also described.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
STORA ENSO AB791 80 FALUN

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Björklund, Magnus Karlstad, SE 11 4
Lif, Jan Hammarö , SE 2 1
Lindh, Susanne Avesta, SE 1 0
Pettersson, Thorulf Täby, SE 3 40

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation