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 |
| 4755634 | Conductive electrode arrays and arrays of resistive elements for use in touch panels and for producing electric fields Selected touch point locating apparatus has an array of two or more electrical touch members constituted by conductive electrodes or impedance elements coupled to a circuit for causing electric current to flow through a selected touch point as the algebra... | 07/05/1988 |
| 4430917 | Hand-held musical instrument and systems including a man-machine interface apparatus A hand-held electronic musical instrument and system has a plurality of resistance elements that have adjacent thereto indentations or notches, or other tactile structures for locating discrete notes. Each resistance element is connected to a circuit for ... | 02/14/1984 |
| 4371746 | Edge terminations for impedance planes Edge terminations for polygonal impedance or resistance surfaces provide linearization of current flow to and/or from the surface through electrical connections at the vertices of the polygon. The edge terminations are constituted by a series of parallel ... | 02/01/1983 |
| 4353552 | Touch panel system and method A general method is disclosed for accurately determining the location or position of a source or sink of electric current on the surface of a resistance element or impedance layer. Touch panels are described that detect the presence of a user's finger on ... | 10/12/1982 |
| 4302011 | Video game apparatus and method A video game apparatus and method in which two-axis output signals are produced when a surface activated with X-Y excitation signals is touched by the human finger. The control surface has a configuration corresponding to the play area on the video displa... | 11/24/1981 |
| 4293734 | Touch panel system and method A general method is disclosed for accurately determining the location or position of a source or sink of electric current on the surface of a resistance element or impedance layer. Touch panels are described that detect the presence of a user's finger on ... | 10/06/1981 |
