Centrifugal pump apparatus of the magnetically-coupled type suitable for tank mounting and also including improvements in impeller and spindle structures of general application and for use with very hot liquids and corrosive chemicals. A cup-shaped motor mounting bell is provided for insertion, open side out, into a hole in the side of a tank and has a flange attaching to the tank wall. The motor is supported on mounting formations inside of the large well afforded by the bell. A smaller cup-sha...

An improved thermal imaging system is proposed wherein charge coupled devs (CCDs) are used as analog multiplexers for the read-out of the scanned linear array of far-infrared detectors.

An improved optical scanner includes a semiconductor charge coupled shift register. An overflow reservoir is operably coupled to respective bits of the shift register in accordance with one aspect of the invention to receive electrical charge which is in excess of the storage capability associated with each bit to prevent "blooming." In a different aspect of the invention, an optically inactive semiconductor shift register is coupled with light sensitive regions which are adjacent respective bit...

An inverted type syringe in which a double-ended needle is molded into a solid post with a socket at its upper end complementary to a stopper piston closing a cylindrical vial. In use, as the stopper is inserted into the socket it is punctured by the needle so that a continued pressure on the vial causes ejection of the contents. In a preferred form, a cylindrical plastic holder telescopically receives the vial and a hub on the holder is cemented or sealed to the post.

An emitter coupled sync separator for a television receiver comprising a pair of transistors connected together with the first transistor receiving the composite video signal and gated to the on condition at a level which is approximately 50% of the height of the sync pulse and remains on until it is turned off at a time t.sub.2 when the signal drops down to the same level again. The second transistor is coupled to the first transistor such that it is turned off when the first transistor is turn...

The emitters and bases of two transistors, at least one of which has more than one emitter, are used as inputs, while the collectors and emitters are used as outputs. The collector of the first transistor is connected to the base of the second transistor. The collectors of both transistors are electrically biased. A resistor is connected between the bias source and the collector of the first transistor. A third transistor, connected as a diode, clamps the voltage across the resistor to a selecte...

Charge coupled shift registers in which the output stage includes an electrically floating diffusion in the substrate, of different conductivity than the substrate, and coupled to minority carrier surface charge storage location. In one form of the circuit, charge signals are shifted down one register and complements of these charge signals down another and these signals are detected by a differential signal detector connected to these diffusions. In another form of the circuit, the signal prese...

This disclosure includes a four pole bandstop filter coupled to a five pole bandpass filter tuned to an adjacent band to achieve a very steep attenuation curve between the two bands and an increased bandstop width.

A read-only memory plane has a plurality of storage elements arranged in a matrix of columns and rows. Drive means are associated with the columns of elements for energizing the elements and a plurality of sense lines are associated with the row of elements for determining the information content of the storage elements. A second matrix of storage elements is within the memory plane in tandem with the first matrix of elements. A second set of drive means and sense lines are provided for the read...

In a preferred form, this disclosure relates to an electrical coupling for use with a device having a rotatable member and a non-rotatable member concentric with the rotatable member and in which one of the members has terminal means for being connected to an electrical power source. The coupling includes a pair of flexible electrical connectors each of which has one end fixed to the terminal means of the one member and which are wrapped a plurality of revolutions upon the one member. The connec...