An isolation aquarium consisting of a housing carrying a plurality of tanks detachably mounted therein, a filter case detachably mounted in the housing for each of the tanks, a system powered by compressed air for constantly withdrawing water from each of the tanks, circulating it through its associated filter and returning it to the tank, the water being aerated during its circulation and filtering, mechanism for terminating the circulation but not the aeration of any tank the filter case of wh...

A DC isolation amplifier for transmitting DC analog voltages between two systems while maintaining DC and AC isolation therebetween. A current proportional to the DC input voltage is passed through a light-emitting diode whose light output is proportional to its input current. The output from the light-emitting diode is fed in approximately equal amounts and via a light pipe array, to a pair of matched light sensitive diodes. The electrical output from one of the light sensitive diodes provides ...

A general process for the isolation of an enantiomer present in excess in a partially resolved mixture of enantiomers of an organic compound, which forms a racemic compound, comprising treating the mixture with a crystallisation solvent and a solubilising agent whereby only the enantiomer present in excess passes into solution and is thereby separated from the insoluble racemic compound.

An isolation amplifier comprising three separate, conductively-isolated sections: (1) an input section including an AC modulator, (2) an output section including a demodulator, and (3) an oscillator section. The AC signal from the oscillator section is transformer-coupled to the modulator section to provide the AC carrier excitation for the modulator and also to energize a rectifier power supply circuit to produce DC voltages for the active elements of the input section. The modulated carrier si...

A DC isolation amplifier having improved conductive isolation between its input and output. The amplifier includes an input section having a modulator and an output section having a demodulator and an oscillator section. The modulator and demodulator are nonconductively coupled through inductive loops of two closed-loop cores of magnetic material each having windings inductively coupled to the material of their associated core and to the other of the modulator or the demodulator. Additionally, a...

In a process for extracting protein from lupins and other low fat seeds the improvement comprising saturating the seeds with water and wet milling them prior to extracting the protein thereby avoiding undue denaturation of the protein.

There is disclosed an isolation amplifier having an input amplifier, an output amplifier, a transformer having primary and secondary windings, an alternator connected to the secondary winding of the transformer for alternately presenting a voltage and a high impedance to the secondary winding, a first switching device connected between the primary winding of the transformer and the output of the input amplifier for connecting the output of the input amplifier to the primary winding when the alte...

Graphic information contained in coordinated arrays is released a bit at a time by the use of an information isolating device. When an instruction mark on the device is located next to a bit of information in one array, a retrieval mark will be located next to a coordinated bit of information in another array. An endless belt or a metal clip at least in part transparent is placed about a leaf or collection of leaves containing graphic information and is moved to isolate the information.

A BICMOS semiconductor device (20) and method for its fabrication is disclosed. Bipolar, PMOS, and NMOS transistors (22, 26, and 28) are isolated from one another by a P type channel stop (54) implantation step prior to formation of a field oxide (56). An N type channel stop (64) implantation step occurs after the field oxide (56) formation. In addition, the N type channel stop (64) implantation step utilizes the same mask as is used to implant N dopant which forms a deep collector region (62) f...

A buoyant isolation device is provided which is capable of confining contamination (e.g. an oil slick) present upon the surface of a body of water while conforming in configuration to surface undulations. The device comprises a buoyant elongated flexible barrier which is provided with a plurality of closed fluid chambers. Through the use of a coupling element having a pair of slots which engage the barrier, contamination confined by the barrier may be readily concentrated prior to subsequent rem...