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 |
| 7111083 | Method and apparatus for use of power switch to control software An apparatus and method for selectively loading and enabling software stored within firmware of an electronic device to support an input device coupled to the electronic device if a power switch is pressed and held for at least a predetermined period of time as the ... | 09/19/2006 |
| 5613855 | Playing aid strips A modular playing aid strip that a user can join in any conformation desired, and are joined together by grommets and anchors or by Velcro. The strips can be easily removed from the playing surface, so that the user can quickly and easily change the layou... | 03/25/1997 |
| 5260874 | Aircraft flight emulation test system An aircraft test system generates stimuli that emulate the stimuli received by an aircraft when in flight is disclosed. The aircraft test system includes a number of instruments for generating the number of processor-controllable instruments for generatin... | 11/09/1993 |
| 5161892 | Temperature measurement in R.F. locations Temperature measurement with thermocouples is made more accurate, and the cost of disposable thermocouples is reduced by locating the cold junction close to the hot junction, utilizing a thermistor in thermal communication with the cold junction in develo... | 11/10/1992 |
| 4630208 | Identification of beacons Apparatus and method for aiding a navigator to identify a light pattern or beacon, comprising a microprocessor connected to a memory for storing beacon data in coded form, a keyboard for calling up codes from memory and a display unit simulating the light... | 12/16/1986 |
| 4543066 | Digital transmitter simulator A modulated VLF signal source has the capability for providing radio sign suitable for performance testing and operator training relative to VLF digital data receiving systems. A number of separately proven components are utilized to implement a relative... | 09/24/1985 |
| 4490117 | Inflight IFR procedures simulator An inflight IFR procedures simulator for generating signals and commands to conventional instruments provided in an airplane. The simulator includes a signal synthesizer which generates predetermined simulated signals corresponding to signals normally rec... | 12/25/1984 |
| 4311466 | Automated aircraft radio navigation simulator Aircraft navigation testing apparatus includes circuitry which produces digital signals on an output bus corresponding to a desired simulation of aircraft glideslope, localizer and very high frequency, omnidirectional (VOR) positions. Localizer and glides... | 01/19/1982 |
| 4134217 | Omega simulation This invention is a system for teaching the principles of Omega navigation and the operation of Omega receivers, which system comprises a simulation computer that provides to an Omega interface (which acts as an Omega receiver) the appropriate Omega signa... | 01/16/1979 |
