Abstract: A high pressure withstanding electrical connector or penetrator is disclosed in which a header containing glass sealed conductors is removably mounted on the high pressure side of the connector shell. An integral web extends across the shell which provides mechanical support for the header.

Abstract: A quick detachable coupling for use on electrical connectors or the like in which the plug has a latching tab formed on a resilient arm. The tab engages a latching shoulder formed in a recess in the receptacle of the coupling when the plug and receptacle are mated. A live hinge member on the housing of the receptacle is actuated to push the latching tab on the resilient arm out from the latching shoulder into a release slot which allows the plug to be slidably disengaged from the receptacle.

Abstract: A nozzle for an aerial refueling boom is disclosed in which the locking latches on the nozzle housing are operated by a solenoid which allows the latches to be moved to an unlocked position by the operator in the aerial refueling tanker. The nozzle embodies an inlet fitting at its forward end which is adapted to be fixed to the boom. A nondestructive detent arrangement releasably couples the nozzle housing to the inlet fitting so that if the housing is deflected at an excessive angle, it will break away from the fitting and thus the boom without damaging the boom.

Abstract: A submersible pumping system is disclosed for pumping cryogenic liquid from a reservoir in which a pump and motor unit is lowered to the bottom of a fluid transmitting casing in the reservoir. An isolation chamber is provided in the casing above the roof of the reservoir into which the pump and motor unit is raised for removal. A special sealing arrrangement is provided which maintains the casing and reservoir isolated from the atmosphere when lifting the pump and motor unit, yet allows a flexible suspension cable to be utilized.

Abstract: A densitometer for use by itself or in a net oil computer. The densitometer includes two differential pressure units to detect the difference in pressure between two corresponding pairs of points and the differences substracted to provide a corrected density output signal. This output signal is then essentially independent of viscosity and/or other variables.

Abstract: A tool is disclosed for helically winding the strength member of a fiber optic cable around a clamp sleeve and thereafter pushing a crimp sleeve over the helically wound strength member while holding the strength member in place on the clamp sleeve.

Abstract: An optical switch comprising a controlled ferroelectric light permeable ceramic provided with electrodes. To simplify the manufacture and to realize a larger switch, the invention provides a baseplate with electrodes and the ferroelectric ceramic is secured thereon in the form of one or more strips.

Abstract: A geophysical connector is disclosed which may be utilized in extreme climatic conditions that is readily field repairable without disrupting the sealing characteristics of the connector. The connector employs an auxiliary harnessing system for coupling the conductors of a cable to the contacts of the connector.

Abstract: A connector is disclosed for coupling a coaxial cable to terminal pins on a printed circuit board to provide EMI/RFI shielding for a signal pin on the board. The insulator of the connector has a center contact cavity for receiving a socket contact which is connected to the center conductor of the coaxial cable. Longitudinal grooves in the outer surface of the insulator form outer contact cavities for ground terminal pins on the PC board. Integral resilient contact fingers formed on the shell extend inwardly into the outer cavities to engage the ground pins.

Abstract: An optical fiber connector of the watch bearing jewel type. To prevent "growing out" of a fiber end to which the connector is terminated, a thin protective window is placed against the bearing jewel and supported by a fiber stub mounted in a second watch bearing jewel. The fiber and the fiber stub are optically coupled via the window.

Abstract: A flat cable insulation-displacement connector in which the center-to-center spacing of the terminals is less than the spacing between the conductors of the flat cable. The terminals are inserted in the connector housing so that the planes containing the contact slots present an angle of 23.degree. to the lateral axis of the connector. A cable clamp is provided with guide channels positioning the cable over the contact forks at the same angle of 23.degree.. The clamp is provided with relief contours over which the cable is bent successively along several angles when forced down by closing the cover, thus realigning the cable with the connector axis.

Abstract: Powder which is too fine to be fluidized on its own is fluidized admixed with a sufficient quantity of coarser powder of a particle size that can be fluidized on its own. The process may be used for coating fine powders with valve-metal for the manufacture of capacitor electrodes.

Abstract: A liquid level system employs a bellows which is in flow communication with a differential pressure unit by a column of reference liquid. A float in the bellows carries a switch which energizes an alarm when liquid in the column is lost.

Abstract: A filter connector is disclosed in which the insulator thereof contains a slot which is parallel to and intersects a row of contact cavities in the insulator. A monolithic capacitor is mounted in the slot with its live electrodes aligned with and facing the contact cavities. A contact in each cavity embodies an integral outwardly extending spring finger which engages one of the electrodes on the capacitor. A rear insulator retains the contacts and capacitor in the cavities and slot, respectively.

Abstract: A liquid level system employs a pair of vertically spaced sensors in a tank such as a boiler. Each sensor includes a pair of bellows. The first bellows is enclosed by a protective enclosure while the second bellows is exposed to the interior of the tank. The first bellows of the two sensors are interconnected and filled with a liquid forming substance, such as an alkali metal, which is in liquid phase at high temperatures, while the second bellows of each sensor and the enclosure for the first bellows are interconnected and filled with a second liquid-forming substance, such as a metal alloy, which is essentially inert. A transducer is connected to one of the second bellows which produces an electrical output signal proportional to the difference between the pressures at the locations of the second bellows and, thus, the level of liquid in the tank.

Abstract: A contact retaining clip is fixed in an insulator cavity by the use of discontinuities around the clip which can be wedged or embedded in the insulator. Preferably a probe is inserted into the clip to expand it. The clip and/or the probe may be heated prior or during insertion or by heating after insertion of the clip but before expansion of the clip.

Abstract: An optical fiber coupling element in which a short length of optical fiber is placed in a glass sleeve with one end of the fiber projecting from the sleeve. The glass sleeve is collapsed onto the fiber, and a watch jewel is fitted over the fiber end. The other end of the sleeve is flared to facilitate the insertion into it of a second fiber. The sleeve and jewel are sealed into one end of a ferrule.

Abstract: A spiral spring strip for coupling a pair of optical fibers which may be terminated with ferrules. The spring loop diameter is reduced by tension so as to grip the ferrules. Several spirals may be employed to form a multiway connector.

Abstract: A heremaphroditic connector for coupling a pair of single optical fibers is disclosed. The connector comprises a pair of connector members each containing at least one single optical fiber terminated by a termination pin. The pin includes a metal eyelet crimped about the optical fiber in three places providing three, spaced, curved indentations which centrally position the fiber in the pin. When the connector members are mated, the mating termination pins are positioned so that the indentations therein are generally aligned. A cam or spring device is forced into the indentations in the mating termination pins to accurately laterally align the pins and, hence, the optical fibers therein.

Abstract: A submersible pumping system especially adapted to cryogenic storage systems which includes a single fluid transmitting casing extending from the top to near the bottom of the storage container, a normally closed spring biased foot valve on the bottom of the casing, a sealing gland closing the top of the casing having a shiftable portion, and a pump and motor unit suspended through the shiftable portion of the sealing gland in the casing and adapted to open the foot valve. The pump and motor unit is centered in the casing and aligned with the foot valve by mating frusto-conical collars associated with the pump and motor unit and with the valve assembly. The shiftable sealing gland allows the pump and motor unit to be lifted off the foot valve so as to close the valve without venting the casing.