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| Number | Title | Issue Date |
| 6330060 | Cloud condensation nucleus spectrometer A cloud condensation nucleus spectrometer having a streamwise segmented condensation nucleus growth column. The condensation nucleus growth column includes alternating hot and cold temperature-maintaining segments arranged next to one another. The tempera... | 12/11/2001 |
| 4967187 | Method and apparatus for particle concentration detection using a cloud chamber Method and apparatus for sampling the gaseous medium of a zone or area to determine the concentration, or changes in concentration, of submicron particles suspended in the gaseous medium of that area or zone using an elongated cloud chamber. A light sourc... | 10/30/1990 |
| 4047031 | Apparatus for obtaining radiographs Apparatus for making X-ray pictures by imagewise exposing a cloud chamber containing a high atomic number gas mixed with a condensate vapor. The gas is under sufficiently high pressure to assure substantially complete absorption of the incident X-rays. Op... | 09/06/1977 |
| 3957511 | Method for producing a visible image by use of a photoconductor A method for producing a visible image with the help of a photoconductor under the action of irradiation which carries the image and causes the appearance of current and charges in the medium wherein the photoconductor is disposed, and which renders the i... | 05/18/1976 |
| 3940621 | Heat transfer device An improved heat transfer device particularly suited for use as an evaporator plate in a diffusion cloud chamber. The device is characterized by a pair of mutually spaced heat transfer plates, each being of a planar configuration, having a pair of opposed... | 02/24/1976 |
