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 |
| 5812689 | Low-powered loud speaker provided with echo generator A low-powered loud speaker is provided with one or more echo generators composed of an insulation tube, a first magnetic permeability element, a second magnetic permeability element, and an induction coil wound around the insulation tube. The first and th... | 09/22/1998 |
| 5802182 | Audio process distortion The audio process is a signal path having a plurality of filters connected or including distortion means. The prime example of this phenomenon surrounds inductances such as found in magnetic tape recorders, spring reverberators, and transformers. The indu... | 09/01/1998 |
| 4504967 | Method and apparatus for damping spurious vibration in spring reverberation units A method of determining the physical location of undesired resonance zones induced by acoustic feedback in a spring reverberation unit and damping the vibration of these resonance zones. The improved spring reverberation unit with damping material located... | 03/12/1985 |
| 4449234 | Reverberation apparatus A reverberation apparatus includes a signal input terminal to be supplied with an input signal, an operational amplifier having an inverted input terminal, a non-inverted input terminal, and an output terminal. The inverted input terminal is connected to ... | 05/15/1984 |
| 4350845 | Reverberation apparatus An apparatus having a plurality of time delays for providing simulated reverberation of an electrical signal representative of sound is disclosed. The time delays are chosen so that delay times of initially delayed signals and reflected signals are logari... | 09/21/1982 |
| 4119933 | Mechanical artificial reverberation apparatus A reverberation apparatus is adapted for mechanical matching characteristics and comprises at least one reverberation unit comprising a plurality of lattice construction systems of coil springs for transmitting sound-frequency mechanical vibrations, each ... | 10/10/1978 |
| 4112396 | Echo annexation device The present invention is related to devices for annexing an echo resembling natural reverberation in the course of sound recording, in which a line or lines of coil spring with a portion or portions protruded axially at a right angle are spanned between t... | 09/05/1978 |
| 4007332 | Artificial reverberation system An improved artificial reverberation system utilizing a unitary electro-acousto-electrical transducer of the electro-dynamic type in combination with means for eliminating the driving signal from the delayed output signal, such means including out-of-phas... | 02/08/1977 |
| 3938063 | Cascade coupled coiled spring reverberation means At least two coil spring rotational mode reverberation lines having transducers at two remote ends thereof are coupled in cascade circuit by means of intermediate long wire transverse mode line structure. Thus, two (or more) coils may be located side by s... | 02/10/1976 |
