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 |
| 5248323 | Vacuum cleaner and filter thereof In a vacuum cleaner comprising a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary means driven by the motor for creating a vacuum in the chamber, an outlet for exhausting air from the chamber, which air flows in a selec... | 09/28/1993 |
| 4225999 | Multi-motor suction cleaner construction A multi-motor suction cleaner of the upright type having a power-driven rotary brush operated in the usual manner with a low-suction, high-volume airflow produced by a typical first motor-fan unit in the cleaner suction nozzle housing to carry out a usual... | 10/07/1980 |
| 4199839 | Suction cleaner power nozzle construction A suction cleaner power nozzle has auxiliary, main and bottom plate members releaseably assembled to form a nozzle housing having separated upper and lower compartments. The lower compartment includes a nozzle mouth in which a rotary brush is located. Sup... | 04/29/1980 |
