Abrading – Precision device or process - or with condition responsive... – Controlling temperature
Patent
1993-12-23
1997-06-10
Morgan, Eileen P.
Abrading
Precision device or process - or with condition responsive...
Controlling temperature
451 39, 451 53, 451 90, 134 7, 134 11, B08B 700
Patent
active
056370270
ABSTRACT:
CO.sub.2 jet spray cleaning apparatus that monitors CO.sub.2 snow plume characteristics. The present invention is a CO.sub.2 jet spray cleaning system that comprises a holding tank for containing liquid CO.sub.2, a spray nozzle coupled to the holding tank, a valve coupled between the holding tank and the spray nozzle, and a temperature sensor coupled to the nozzle for sensing the temperature of a plume of CO.sub.2 that is sprayed by the nozzle and for providing a signal indicative thereof. The system may also comprise a display coupled to the temperature sensor for displaying the temperature of the plume of CO.sub.2 to an operator, or an alarm coupled to the temperature sensor for alerting an operator that the temperature of the plume of CO.sub.2 has risen to a predetermined level. Either the displayed signal or the alert signal indicates that the quality of the plume has diminished and that the liquid CO.sub.2 in the holding tank should be replenished. The present CO.sub.2 jet spray cleaning system and CO.sub.2 snow plume sensor provide an indication of the proper CO.sub.2 snow characteristics to an operator so that the system cleans in a proper manner.
REFERENCES:
patent: 4284670 (1981-08-01), Kole
patent: 4389820 (1983-06-01), Fong et al.
patent: 4617064 (1986-10-01), Moore
patent: 4848123 (1989-07-01), Thompson
patent: 4934151 (1990-06-01), Shima
patent: 5184427 (1993-02-01), Armstrong
patent: 5445553 (1995-08-01), Cryer et al.
Brandt Werner V.
Driggs Matthew G.
Palombo Mario P.
Denson-Low W. K.
Hughes Aircraft Company
Lachman M. E.
Morgan Eileen P.
Sales M. W.
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