Paper making and fiber liberation – Processes and products – With measuring – inspecting and/or testing
Reexamination Certificate
2008-06-30
2011-12-20
Halpern, Mark (Department: 1741)
Paper making and fiber liberation
Processes and products
With measuring, inspecting and/or testing
C162S263000
Reexamination Certificate
active
08080131
ABSTRACT:
Device for measuring the two-dimensional velocity of a moving paper web having opposed first and second surfaces, wherein comprising: at least one light source directed at said first surface and arranged to transmit light through said paper web; at least one image capturing device directed at said second surface, and arranged to receive said transmitted light and produce a two-dimensional image of a section of said paper web; a control unit, arranged to control said at least one light source and at least one image capturing device, and to receive two-dimensional images from said at least one image capturing device, and comprising computation means arranged to compute the velocity component of said paper web in the machine direction and/or the cross direction by calculating the cross correlation of two two-dimensional images.
REFERENCES:
patent: 5113454 (1992-05-01), Marcantonio et al.
patent: 5393378 (1995-02-01), Yakabe et al.
patent: 6118132 (2000-09-01), Tullis
patent: 6222174 (2001-04-01), Tullis et al.
patent: 2006/0096727 (2006-05-01), Ferm et al.
patent: 2006/0171725 (2006-08-01), Ruthenberg et al.
patent: 0 329 889 (1989-08-01), None
patent: 54130168 (1979-10-01), None
patent: 4086562 (1992-03-01), None
patent: WO 0153603 (2001-07-01), None
International Search Report, corresponding to PCT/SE2008/050806, mailed on Nov. 5, 2008.
Written Opinion, corresponding to PCT/SE2008/050806, mailed on Nov. 5, 2008.
Halpern Mark
Renner , Otto, Boisselle & Sklar, LLP
STFI Skogsindustrins Tekniska Forskningsinstitut AB
LandOfFree
Device and method for measuring the velocity of a moving... 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 and method for measuring the velocity of a moving..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for measuring the velocity of a moving... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4268847