Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7308891 | Products and processes for archery and firearm sights Archery and firearm sight products and processes are disclosed. In an exemplary embodiment an apparatus may comprise a sight ring and a shaft. The sight ring may comprise a proximal end, a distal end, and a track. The track may comprise a major axis disposed substan... | 12/18/2007 |
| 6594911 | Long-term navigation method and device Using an inertial master box mounted on a carrier for measuring its movements with respect to a geographic frame of reference of fixed directions along three axes Xg, Yg, Zg, a measuring method provides for continuously measuring an orientation of a frame... | 07/22/2003 |
| 5974675 | Navigation unit A navigation unit having a gyro sensor mounted thereon. The unit includes a mounting mechanism for changing the mounting direction of the gyro sensor so that the rotation detecting axis of the gyro sensor may be vertical, i.e. normal to a vehicle. In one ... | 11/02/1999 |
| 5134394 | Light aircraft navigation apparatus A gyroscopically stabilized artificial horizon instrument used in light aircraft mounts an earth magnetic field sensitive flux sensor on its gyroscope housing to produce a signal indicative of the direction of flight. The signal is processed and produced ... | 07/28/1992 |
| 4561188 | Grade and slope attitude gyroscopic driven indicator for heavy earth moving equipment A gyroscopic referenced electronically operated grade and slope attitude indicator enabling a heavy equipment operator to build a slope and/or grade by visual readout. It is a system using a gyro output to compute the grade and slope for display thereof o... | 12/31/1985 |
| 4419832 | Aircraft attitude display instrument An aircraft attitude indicator employing a gyro driven tape display. The tape takes the form of a closed loop stretched about a carrier mechanism, and includes a viewable horizon indication. The tape further includes a set of perforations which, preferabl... | 12/13/1983 |
| 4185394 | Spherical display for artificial horizon indicator Artificial horizon indicators are precise, gyroscopic flight instruments designed to furnish an aircraft pilot with an artificial indication of an aircraft pitch and roll attitude with respect to earth. Basically, such indicators include a gyro gimbaled w... | 01/29/1980 |
