Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-11-13
2007-11-13
Nguyen, Phung T. (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S657000, C073S715000
Reexamination Certificate
active
11031953
ABSTRACT:
A diaphragm diagnostic system for use in an industrial field device has a diaphragm and a diagnostic feature. The diaphragm is configured to couple the field device to a process fluid and has a plurality of layers. A first layer of the plurality of layers is exposed to process fluid of an industrial process. A diagnostic feature is coupled to the diaphragm to monitor an electrical parameter of the diaphragm and responsively infer an operative state of the diaphragm based on a change in the monitored electrical parameter.
REFERENCES:
patent: 3353025 (1967-11-01), Sturm
patent: 3946726 (1976-03-01), Pikul
patent: 3968693 (1976-07-01), Kazahaya
patent: 4206761 (1980-06-01), Cosman
patent: 4281666 (1981-08-01), Cosman
patent: 4571537 (1986-02-01), Taylor
patent: 4653508 (1987-03-01), Cosman
patent: 4660568 (1987-04-01), Cosman
patent: 4777826 (1988-10-01), Rud, Jr. et al.
patent: 4934902 (1990-06-01), Mantell
patent: 4971523 (1990-11-01), Wacker et al.
patent: 5097712 (1992-03-01), Gerst et al.
patent: 5524492 (1996-06-01), Frick et al.
patent: 5760310 (1998-06-01), Rud, Jr. et al.
patent: 6003380 (1999-12-01), Sasaki et al.
patent: 6029525 (2000-02-01), Grudzien
patent: 6120033 (2000-09-01), Filippi et al.
patent: 6295875 (2001-10-01), Frick et al.
patent: 6425290 (2002-07-01), Wilcox et al.
patent: 6484585 (2002-11-01), Sittler et al.
patent: 6508129 (2003-01-01), Sittler
patent: 6511337 (2003-01-01), Fandrey et al.
patent: 6523454 (2003-02-01), Rohner
patent: 6577140 (2003-06-01), Wenman
patent: 6662662 (2003-12-01), Nord et al.
patent: 6684711 (2004-02-01), Wang
patent: 6782754 (2004-08-01), Broden et al.
patent: 6941853 (2005-09-01), Hembree
patent: 2002/0067255 (2002-06-01), Tanizawa
patent: 2004/0083883 (2004-05-01), Bubb et al.
patent: 893-660 (1982-10-01), None
“Notification of Transmittal of the International Search Report or the Declaration” PCT/US2005/045734, filed Dec. 15, 2005.
Anderson William Thomas
Wells Christopher Ashley
Nguyen Phung T.
Rosemount Inc.
Westman Champlin & Kelly P.A.
LandOfFree
Diagnostic system for detecting rupture or thinning of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diagnostic system for detecting rupture or thinning of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diagnostic system for detecting rupture or thinning of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3878767