Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7063131 | Perforated fin heat exchangers and catalytic support Perforated fins are provided to improve the capabilities of fin and tube type heat exchangers, and to adapt them for flow outside of the tube that is essentially parallel to the axis of the tube. The fins are made of a thermally conductive material, such as metal, w... | 06/20/2006 |
| 6464943 | Solid phase evaporator device A laboratory evaporator device is disclosed which is modular in form so that the modular member supporting depending, upraised hollow needles or tubes through which evaporating fluid is conducted, may be individually sterilized and cleansed to thereby for... | 10/15/2002 |
| 5772850 | Apparatus for vapor compression distillation A vapor compression distillation process and apparatus is provided wherein the apparatus includes a container having a generally vertical longitudinal center axis and bottom and top end caps, a plurality of generally vertical tubes spacedly disposed withi... | 06/30/1998 |
| 5296103 | Method for the fractional distillation of liquid mixtures and apparatus for carrying out the method A method for the fractional distillation of a mixture of at least two compounds with different boiling points, a rising flow of vapor is brought into intimate contact with a descending flow of liquid obtained within a column (1) by the partial condensatio... | 03/22/1994 |
| 4354899 | Device for concentration and possible purification of mineral acids, particularly sulphuric acid For concentration and possible purification of mineral acids, particularly sulphuric acid, a furnace which can be heated is utilized, in which one or several long quartz tubes are placed. The quartz tubes are sealed at the upper and lower parts of the fur... | 10/19/1982 |
| 4344976 | Process for recovering meal and oil from raw fish The invention relates to a process for recovery of meal of high protein quality and oil from fish. To obtain a high protein quality in fish meal, one or both of the conditions of short process time and low temperature are essential factors. In the process... | 08/17/1982 |
| 3966538 | Falling strand devolatilization apparatus The invention relates to an improved falling strand devolatilization apparatus. Said apparatus includes in combination a flash chamber for devolatilizing an input material fed as heated falling strands from the tubes of a shell and tube heat exchanger mou... | 06/29/1976 |
