Methods and apparatus for determining fibre orientation

Details Methods and apparatus for determining fibre orientation Methods and apparatus for determining fibre orientation

2007-01-17

2010-11-09

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C356S429000

Reexamination Certificate

active

07829855

ABSTRACT:
Fiber distribution characteristics such as the bulk average orientation of fibers in composite fibrous materials can be evaluated based on the variation in the speed with which polarized electromagnetic signals propagate through the material as a function of angle. The electromagnetic radiation may comprise terahertz radiation. The composite fibrous materials may be wood-containing materials such as oriented strand board or particle board.

REFERENCES:
patent: 4648712 (1987-03-01), Brenholdt
patent: 4654529 (1987-03-01), Boulay et al.
patent: 4707652 (1987-11-01), Lowitz
patent: 5319194 (1994-06-01), Yoshizumi et al.
patent: 5420595 (1995-05-01), Zhang et al.
patent: 5475233 (1995-12-01), Fukuoka et al.
patent: 5619143 (1997-04-01), Stevens et al.
patent: 6190153 (2001-02-01), Tsuzukiyama et al.
patent: 6717675 (2004-04-01), Munch
patent: 2003/0156293 (2003-08-01), Kazuhiko et al.
patent: 2003/0174312 (2003-09-01), Leblanc
patent: 2004/0155665 (2004-08-01), Arnone et al.
patent: 2005/0253071 (2005-11-01), Ferguson et al.
patent: 2360842 (2001-10-01), None
patent: 2410081 (2005-07-01), None
patent: 86/07148 (1986-12-01), None
Friedlander, P.H., “The measurement of fibre orientation in newsprint with respect to the machine direction by X-ray diffraction”, Pulp and Paper Magazine of Canada, Jan. 1958, pp. 102-103.
Ruck, H. et al., “The determination of the fibre orientation in paper”, Plup and Paper Magazine of Canada, Jun. 1958, pp. 183-190.
Zhao, G. et al., “Design and performance of THz emission and detection setup based on a semi-insulating GaAs emitter”, Rev. Sci. Inst. vol. 73, pp. 1715-1719.

Affiliated with

Also associated with

Rating

Methods and apparatus for determining fibre orientation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for determining fibre orientation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for determining fibre orientation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4239087