A small high capacity centrifugal pump for the transfer of liquids is disclosed. The pump has a circular pump chamber, a hole (bored off center relative to the diameter of the pump chamber) for installation of the drive shaft component, the outlet and inlet nozzles of very large internal diameter. The impeller is a foraminous sleeve formed as a one piece casting of a width slightly less than the impeller's diameter. It is threaded at its inboard end for mounting onto the threaded end of the impe...

An inexpensive method and means for generating high power envelope-modulated radio frequency signals is disclosed. Embodiments provide EER amplification and separate modulation of information encoded as phase angle and as amplitude. An envelope modulated signal generation apparatus comprising a source of carrier signal, a source of a binary data stream, a pulse deletion logic and a current switch is disclosed.

A method for forming a semiconductor device. A substrate is provided. A first electrically insulating layer is formed on the substrate. A second electrically insulating layer is formed on the first electrically insulating layer. Openings are formed through the second electrically insulating layer down to the level of the first electrically insulating layer. Spacers are formed on opposing sidewalls of the openings. The spacers on one of the opposing side walls of the openings are removed, thereby...

Polyethylene solutions are extruded through a multi-orifice spinneret into a cross-flow gas stream to form a fluid product. The fluid product is stretched at a temperature at which a gel will form at a stretch ratio of at least 5:1 over a length of less than about 25 mm with the cross-flow gas stream velocity at less than about 3 m/min. The fluid product is quenched in a quench bath consisting of an immiscible liquid to form a gel. The gel is stretched. The solvent is removed from the gel to for...

An actuator for applying an actuating force through a total displacement. The actuator includes: an actuator body; n piezo members supported by the body where n is an integer greater than or equal to two, each of the piezo members generating a force and a displacement upon application of a voltage thereon; and n-1 levers rotatably disposed in the body and each having first and second ends corresponding to two of the n piezo members such that the displacements of the n piezo members are accumulat...

An electronic switching apparatus for use in automated test equipment. The electronic switching apparatus includes a transconducting device having source and drain regions where at least one of the source and drain regions is configured to be coupled to a voltage source. A voltage comparison means is coupled to the transconducting device for determining a relative magnitude of voltage applied to the source and drain regions and a multiplexer has an input coupled to the voltage comparison means f...

An electrical penetration assembly for high temperature, high pressure applications, such as for bringing electrical conductors through a nuclear reactor primary vessel or containment vessel. The electrical conductors are disposed within refractory oxide which has a gas impervious outer sheath thereabout. A seal is provided between the electrical conductors and the outer sheath at spaced positions. The sheathed conductor is passed through aligned apertures in headers which permit easy connection...

An electrical conducting cable for submersible motors adapted for use in high temperature high pressure oil wells. The cable includes separately insulated conductors disposed within an epichlorohydrin rubber jacket. The conductors are insulated with a layer of high temperature, high molecular weight, extrudable fluorcarbon, such as 1:1 copolymer of ethylene and chlorotrifluoroethylene, and a layer of high temperature thermosetting rubber, such as ethylene propylene copolymers and terpolymers, ei...

Mo-based super-high-speed steel of high cutting capacity, containing, in addition to the iron and the usual alloying and contaminating elements, also 1.05 to 1.50 weight percent of C, 4.0 to 5.0 weight percent of Cr, 5 to 6 weight percent of W, 0.05 to 2.0 weight percent of S, 0.05 to 0.50 weight percent of Pb and optionally being alloyed with Co, improved in that it contains 6.05 to 6.95 weight per cent of Mo, 2.16 to 4.50 weight percent of V, 0.10 to 4.0 weight percent of Nb and 0.11 to 0.25 w...

This invention relates to a radiation display tube having an increased image resolution and recording efficiency and comprising a first evacuated chambers, a second chamber having a radiation transparent end wall with a conductive inner surface and which is adapted to be filled with an ionizable gas of desired constituency and pressure, and a gas tight, non-conducting interface wall positioned therebetween and having a plurality of discrete conducting elements extending therethrough. Apparatus i...