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Mark S Buhr, Adib G Daoud, Derek J Daw, John E Merritt: Apparatus for high pressure fluid filtration. Therox, Therox, November 8, 2001: US20010037975-A1

A bacterial fluid filter includes a filter element supported by a backing member. The filter element and backing member are sealed, e.g., with one or more o-ring seals, in a housing to provide a filter assembly capable of filtering fluid under relatively high pressure. In one embodiment, a filter el ...


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Derek J Daw, Jeffrey L Creech, William R Patterson: Bubble detector and method of evaluation or calibration thereof. Therox, May 13, 2004: US20040089050-A1

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, th ...


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Derek J Daw, Jeffrey L Creech, William R Patterson: System and method of evaluating or calibrating a bubble detector. Therox, August 12, 2004: US20040154374-A1

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, th ...