Measuring and testing – Fluid pressure gauge – Bourdon
Reexamination Certificate
2011-06-21
2011-06-21
Caputo, Lisa M (Department: 2855)
Measuring and testing
Fluid pressure gauge
Bourdon
C073S705000, C073S800000
Reexamination Certificate
active
07963170
ABSTRACT:
A pressure sensor is disclosed wherein pressure induced changes in birefringent properties of an optical sensing element are read out by transmission of at least one light beam. The pressure sensor can include at least one single-material transparent body which is subjected to at least two different pressures (p1, p2) in at least two different regions via at least two pressure chambers. The transparent body can transmit by a parallel or minimally divergent light beam without total reflection in the body such that the pressure-induced birefringence and a corresponding differential phase shift between linear polarisation components of the light beam depends on a difference of the different pressures (p1, p2).
REFERENCES:
patent: 5009107 (1991-04-01), Grasdepot
patent: 5022045 (1991-06-01), Elliott
patent: 5515459 (1996-05-01), Farhadiroushan
patent: 5561522 (1996-10-01), Rapoport et al.
patent: 6208776 (2001-03-01), Prohaska et al.
patent: 6513390 (2003-02-01), De La Puente et al.
patent: 6597821 (2003-07-01), Bohnert et al.
patent: 6647800 (2003-11-01), De La Puente et al.
patent: 2 419 401 (2006-04-01), None
International Search Report of Application No. PCT/EP2007/056969 dated May 8, 2008.
Written Opinion of the International Searching Authority of Application No. PCT/EP2007/056969 dated May 8, 2008.
J. P. Dakin et al. “Compensated Polarimetric Sensor Using Polarisation-Maintaining Fibre in a Differential Configuration”, Electronics Letters, Jan. 5, 1984, vol. 20, No. 1, pp. 51-53.
International Preliminary Report on Patentability (Form PCT/IB/373) issued by the International Bureau of WIPO, Jan. 12, 2010, and accompanying Written Opinion (Form PCT/ISA/237) issued by the European Patent Office.
Föppl, L.—Monch, E.,Praktische Sbannungsoptik, Jun. 20, 1972, 3rd Edition, title page, Forward and Table of Contents, Springer-Verlag, Berlin/Heidelberg, DE.
Bohnert Klaus
Braendle Hubert
Kassubek Frank
Kramer Axel
ABB Research Ltd
Buchanan & Ingersoll & Rooney PC
Caputo Lisa M
Jenkins Jermaine
LandOfFree
Pressure sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pressure sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2716096