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 |
| 5467944 | Detector for indicating ice formation on the wing of an aircraft A detector indicating ice formation on the wing of an aircraft or any planear surface, based on a thread-like or a tape-like transducer, through which an ultrasonic signal is transmitted at one end. The attenuation of the signal having passed through the ... | 11/21/1995 |
| 5359904 | Device and method for measuring the tension stress of an optic fiber or a corresponding wire The invention relates to an on-line tension meter for an optic fiber. The tensile stress of a bare optic fiber is measured without contacting the optic fiber as the optic fiber is drawn in a draw machine. A loudspeaker causes a wire wave to be formed in t... | 11/01/1994 |
| 4906107 | Fibre-optic thermometer or temperature alarm device A theremometer or temperature alarm device making use of fibre optics. The measuring instrument has a fibre-optic light transmitter (1), which sends out light along an optic fibre (2) to a measuring head (5) on the end of the transmitting fibre (2), and a... | 03/06/1990 |
| 4882499 | Fiber-optic detector for oils and solvents A liquid detector utilizing fiber optics, by which the presence of oils and various solvents can be detected. The detector is internally safe because the optical fiber is an insulator and may therefore be used to monitor liquids involving fire or explosiv... | 11/21/1989 |
