Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Affecting structure – article – etc. – submerged in marine...
Reexamination Certificate
2008-08-07
2011-10-18
Griffin, Walter (Department: 1774)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Affecting structure, article, etc., submerged in marine...
C422S040000, C422S261000
Reexamination Certificate
active
08038937
ABSTRACT:
The device with biofouling control for monitoring aquatic (or gaseous) environment encloses an environmental sensor instrument in a sensor chamber which programmably opens for allowing direct communication between the sensors and the water of interest for sampling and which is closed after the sampling sequence is completed to create an anti-fouling environment in the sensor chamber by adding a biocide into the chamber and exposing the sensors to the anti-fouling environment for a predetermined period of time. The monitoring device includes a microprocessor which is preprogrammed prior to deployment of the device (and which may be re-programmed from a remote host computer during the deployment) into the aquatic environment and which controls the operation of the entire device for a long deployment (up to several months). The opening/closing of the sensor housing, instrument sampling and release of the biocide into the chamber are synchronized to provide the most effective sampling/anti-fouling sequence of operations of the autonomous device.
REFERENCES:
patent: 4089209 (1978-05-01), Grana et al.
patent: 4763537 (1988-08-01), Scott et al.
Codispoti Louis A.
Harford Jay
Kelly Vincent M.
Cleveland Timothy
Griffin Walter
Rosenberg , Klein & Lee
University of Maryland Center for Environmental Science
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