Paper making and fiber liberation – Processes and products – Conditioning – preparing or repairing of apparatus
Reexamination Certificate
2005-07-06
2011-12-20
Fortuna, Jose A (Department: 1741)
Paper making and fiber liberation
Processes and products
Conditioning, preparing or repairing of apparatus
C162S193000, C162S272000, C034S444000
Reexamination Certificate
active
08080132
ABSTRACT:
The invention relates to a device (11) for stabilising the transport of a material web (12) on the upper face of an air-permeable machine clothing (10), in particular a fibrous web. The device is located on the underside of the machine clothing directly upstream of an intake nip in the direction of travel (17) of the web, said nip being formed by a roll (5) and the machine clothing, and comprises a first negative-pressure zone (19) and at least one vacuum opening (20) that faces essentially in the opposite direction to the direction of travel of the web, communicating with the first negative-pressure zone of the device. This permits the boundary layer (23) of air that is carried along by the underside of the machine clothing to be at least partially sucked from said clothing into the first negative-pressure zone.
REFERENCES:
patent: 4179330 (1979-12-01), Page
patent: 4321107 (1982-03-01), Page
patent: 4502231 (1985-03-01), Fissmann et al.
patent: 4628618 (1986-12-01), Virta et al.
patent: 4821429 (1989-04-01), Sieberth
patent: 4856205 (1989-08-01), Meyer et al.
patent: 4893741 (1990-01-01), Heinzmann
patent: 5325608 (1994-07-01), Mayer
patent: 5379526 (1995-01-01), Haverinen
patent: 5503716 (1996-04-01), Kivimaa et al.
patent: 5577294 (1996-11-01), Pollock
patent: 5738760 (1998-04-01), Svanqvist et al.
patent: 5759352 (1998-06-01), Lau et al.
patent: 5779184 (1998-07-01), Kaufmann et al.
patent: 5820733 (1998-10-01), Mancini
patent: 5888349 (1999-03-01), Lau et al.
patent: 5891309 (1999-04-01), Page et al.
patent: 5933981 (1999-08-01), Meschenmoser
patent: 5967457 (1999-10-01), Wildenberg et al.
patent: 6260287 (2001-07-01), Walker et al.
patent: 6328852 (2001-12-01), McGary et al.
patent: 6648198 (2003-11-01), Demers
patent: 6733634 (2004-05-01), Van Rengen et al.
patent: RE39601 (2007-05-01), Svanqvist
patent: 2002/0005264 (2002-01-01), McGary et al.
patent: 2003/0089756 (2003-05-01), Demers
patent: 2003/0221807 (2003-12-01), Klerelid et al.
patent: 2004/0261962 (2004-12-01), Klerelid et al.
patent: 2006/0278360 (2006-12-01), Solberg
patent: 2008/0053632 (2008-03-01), Scherb et al.
patent: 19613939 (1997-10-01), None
patent: 1205415 (2002-05-01), None
patent: 01156263 (1989-06-01), None
patent: 01239186 (1989-09-01), None
patent: WO 2006015918 (2006-02-01), None
Scherb Thomas
Silva Carlos Luiz
Fortuna José A
Greenblum & Bernstein PLC
Voith Patent GmbH
LandOfFree
Device for stabilizing a web does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for stabilizing a web, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for stabilizing a web will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4308661