Measuring and testing – Instrument proving or calibrating – Liquid level or volume measuring apparatus
Reexamination Certificate
2006-03-21
2006-03-21
Raevis, Robert (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Liquid level or volume measuring apparatus
Reexamination Certificate
active
07013703
ABSTRACT:
A bubble detector utilizes an ultrasonic transducer to sample bubbles as they pass the transducer. The envelope of the return signal is analyzed to determine the volume of each sampled bubble. If the total volume of bubbles sampled within a certain period of time exceeds a desired maximum volume, the bubble detector may initiate a system shut down. A bubble detector can be evaluated or calibrated by introducing bubbles into a conduit, detecting the bubbles introduced into the conduit using visual inspection or a bubble detector of known resolution and comparing the results with the examination of a bubble detector under evaluation.
REFERENCES:
patent: 3695281 (1972-10-01), Leon
patent: 3974681 (1976-08-01), Namery
patent: 4212845 (1980-07-01), Stelling et al.
patent: 4486189 (1984-12-01), Troutner et al.
patent: 4828543 (1989-05-01), Weiss et al.
patent: 4855088 (1989-08-01), Sohn et al.
patent: 5039279 (1991-08-01), Natwick et al.
patent: 5053747 (1991-10-01), Slate et al.
patent: 5055198 (1991-10-01), Shettigar
patent: 5176631 (1993-01-01), Koenig
patent: 5198776 (1993-03-01), Carr
patent: 5394732 (1995-03-01), Johnson et al.
patent: 5723773 (1998-03-01), Bryan
patent: 6036645 (2000-03-01), Drost et al.
patent: 6113554 (2000-09-01), Gilcher et al.
patent: 6180059 (2001-01-01), Divino, Jr. et al.
patent: 6390999 (2002-05-01), Zscheile et al.
patent: 6629449 (2003-10-01), Kline-Schoder et al.
patent: 8907919 (1989-10-01), None
Wojke R. et al., “Ein Einfaches Testverfahren Zur Detektion Von Mikroblasen Im Extrakorporalen Blutkreislauf.\A Simple Test Procedure for the Detection of Microbubbles in the Extracorporeal Blood Circulation”, Biomedizinische Technik, Fachverlag Schiele Und Schoen GmbH. Berlin, DE,, vol. 38, No. 3, Mar. 1, 1993, pp. 34-37, XP000360414, ISSN: 0013-5585.
Creech Jeffrey L.
Derek Daw J.
Patterson William R.
Kivinski Margaret A.
Raevis Robert
TherOx, Inc.
LandOfFree
System and method of evaluating or calibrating a bubble... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method of evaluating or calibrating a bubble..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of evaluating or calibrating a bubble... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3613727