Roll or roller – With specific roller exterior surface structure – Surface projections – indentations – or slits
Reexamination Certificate
2005-02-09
2009-02-17
Omgba, Essama (Department: 3726)
Roll or roller
With specific roller exterior surface structure
Surface projections, indentations, or slits
C492S028000, C492S031000, C492S033000, C492S034000, C492S036000, C492S048000
Reexamination Certificate
active
07491160
ABSTRACT:
A grooved forming roll in a paper machine has a rotably supported shell (20) with circular openings (21) arranged to be open at least on the outer surface of the shell (20). Each opening (21) has a circular groove which is formed on the outer surface and which is arranged concentrically relative to the opening (21). A portion of the formed circular openings (22) extends to each opening (21) from each adjacent opening (21). The outer radius (r) of the circular groove (22) is arranged such that the number of necks (24), delimited by the adjacent openings (21) and their circular grooves (22) on the shell outer surface within the area of one circular groove (22), is greater than the number of the adjacent openings (21) of the corresponding opening (21).
REFERENCES:
patent: 1805780 (1931-05-01), Millspaugh
patent: 2566439 (1951-09-01), Beachler
patent: 2753181 (1956-07-01), Anander
patent: 2803188 (1957-08-01), Duvall
patent: 4207998 (1980-06-01), Schmid
patent: 5383778 (1995-01-01), Schulz
patent: 5490902 (1996-02-01), Schulz
patent: 5529100 (1996-06-01), Koba
patent: 6030503 (2000-02-01), Matuschczyk
patent: 6106447 (2000-08-01), Schiel
patent: 7326322 (2008-02-01), Ruthven et al.
patent: 2006/0185533 (2006-08-01), Saueressig
patent: 102 27 846 (2004-01-01), None
patent: 102 27 847 (2004-01-01), None
patent: 1 375 743 (2004-01-01), None
patent: 111861 (2003-09-01), None
patent: WO 99/32713 (1999-01-01), None
Karttunen Heikki
Vestola Juhani
Metso Paper Inc.
Omgba Essama
Stiennon & Stiennon
LandOfFree
Grooved forming roll does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Grooved forming roll, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grooved forming roll will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4100494