Abstract: A spring probe connector, a device and an assembly for interfacing a daughter card with a backplane. The spring probe connector includes a hollow barrel that defines a first opening and a second opening. The spring probe connector includes a plunger that is received by the first opening. The plunger includes a contact tip that protrudes from the first opening and makes electrical contact with the backplane. The spring probe connector includes one or more springs positioned within the hollow barrel and applies a load onto the plunger. The spring connector includes a contact end that protrudes from the second opening and connects with the printed circuit board of the modular connector assembly.

Abstract: A spring probe connector, a device and an assembly for interfacing a daughter card with a backplane. The spring probe connector includes a hollow barrel that defines a first opening and a second opening. The spring probe connector includes a plunger that is received by the first opening. The plunger includes a contact tip that protrudes from the first opening and makes electrical contact with the backplane. The spring probe connector includes one or more springs positioned within the hollow barrel and applies a load onto the plunger. The spring connector includes a contact end that protrudes from the second opening and connects with the printed circuit board of the modular connector assembly.

Abstract: Radio frequency (“RF”) transmitters include a digital-to-RF electronics module that receives an input data stream and outputs an RF signal, a switch having a first input port that is coupled to an output of the digital-to-RF electronics module, a second input port that is coupled to a matched termination, and an output port that is coupled to a communications network, a DC injection circuit that is configured to inject a DC signal at a first node on an RF transmission path that connects the output of the digital-to-RF electronics module to the first input port of the switch, and a DC monitoring circuit that is configured to sense if a DC signal is present on a second RF transmission path that connects the output of the switch to the communications network.

Abstract: Radio frequency (“RF”) transmitters include a digital-to-RF electronics module that receives an input data stream and outputs an RF signal, a switch having a first input port that is coupled to an output of the digital-to-RF electronics module, a second input port that is coupled to a matched termination, and an output port that is coupled to a communications network, a DC injection circuit that is configured to inject a DC signal at a first node on an RF transmission path that connects the output of the digital-to-RF electronics module to the first input port of the switch, and a DC monitoring circuit that is configured to sense if a DC signal is present on a second RF transmission path that connects the output of the switch to the communications network.

Abstract: A one piece socket contact for receiving a pin. The socket contact includes a tubular barrel having a rear tail portion, a ferrule portion, and a throat portion. The ferrule portion includes an opening with an opening diameter. The throat portion has a plurality of slots that define a plurality of bands. The bands are bent inwards to a throat diameter smaller than the opening diameter. The bands are arranged to resemble a hyperboloid wire cage.

Abstract: A one piece socket contact for receiving a pin. The socket contact includes a tubular barrel having a rear tail portion, a ferrule portion, and a throat portion. The ferrule portion includes an opening with an opening diameter. The throat portion has a plurality of slots that define a plurality of bands. The bands are bent inwards to a throat diameter smaller than the opening diameter. The bands are arranged to resemble a hyperboloid wire cage.

Abstract: A configurable port assembly is used proximate a medium containing struct, such as a water tunnel, e.g. to measure fluid flow or inject flowing fluid into the tunnel. The configurable port assembly includes at least two configurable port assembly components assembled to define a configurable port extending from a first opening to a second opening. One or more of the configurable port assembly components can be rotated from a first to a second assembled position to define a configurable port having at least two predefined shapes. The configurable port assembly preferably includes four configurable port assembly components assembled and coupled together with coupling members, such as dowel pins, extending through the components. Two of the configurable port assembly components have shaped surfaces that define a shaped thickness of the configurable port while the other two components have shaped surfaces that define a shaped width of the port.

Abstract: A boundary layer polymer reservoir has bladder type side walls and is supted in a chamber in a vehicle that can be filled with sea water under pressure to provide external forces on the reservoir to eject the polymer through ports in the nose of the vehicle. The vehicle is a buoyant test vehicle that is drawn downwardly to a depth that produces a predetermined pressure in the chamber. The reservoir is elliptical with a support ring to which the elliptical side walls are peripherally attached, and which is itself attached to rails inside the vehicle.

Abstract: An underwater vehicle has a generally cylindrically portion with boundary yer polymer fluid storage and a pressurizing source provided therein, and a nose portion secured to the cylindrical portion and capable of being reconfigured for ejecting the polymer fluid from the nose adjacent the centerline of the vehicle or from the area of minimum pressure adjacent the juncture between the nose of the vehicle and the cylindrical portion. The nose portion can be reconfigured without breaking down the joint between the nose portion and the cylindrical portion of the vehicle. A removable plug is provided for isolating nose ejector ports, and a removable channel blocking dam is provided for isolating the ports provided in the area of minimum pressure adjacent the joint between the nose portion and the cylindrical portion of the vehicle. Further, the nose ejector ports are defined in a removable nose cap subassembly and a removable annular subassembly defines the ejector ports in the area of minimum pressure.

Abstract: A multi-pitot tube assembly for use in flow measurements of a fluid surroing a test structure. The assembly has multiple, identically shaped pre-formed pitot tubes sealed within a molded polyurethane fin shape. The pitot tubes are nested together and passed through an alignment disk into separate spread holes in a common sealing plug. The surface of the plug is shaped to conform to the surface of the test structure. The pitot tubes, alignment disk and plug are inserted into a mold and polyurethane is injected to seal the individual tubes and form the fin shape from which the pitot tubes extend. The mold is removed and the assembly is attached to the test structure with the fin extending into the medium and the sealing plug flush with the outer surface of the test structure. A watertight, O-ring seal is provided between the plug and the test structure.

Abstract: A non-turbulent, retractable pull-down eye assembly for use in hauling a yant test vehicle down to a release depth. The assembly is contained within the tail housing of the vehicle and is extended from the tail housing when the vehicle is to be hauled down. A hook and cable is attached through an eye in the extended portion of the assembly and the cable is winched to pull the vehicle below the surface. When the buoyant test vehicle reaches the prescribed depth, an acoustic signal is used to release the hook. The assembly is spring loaded within the tail housing such that, upon release from the hook, the extended portion retracts back into the tail housing as the vehicle rises to the surface. The exposed surface of the assembly when in the retracted position is shaped to conform to the shape of the buoyant test vehicle tail housing. The pull-down eye assembly thus retracted does not contribute to any turbulence around the tail housing during vehicle ascent.

Abstract: A source for vapor depositing manganese onto a substrate in a vacuum. The source is formed by a chain of metallic beads fused around a wire. The material of the wire has a high recrystallization temperature, the beads consist of an alloy of manganese and one or more other substances from the group of metals and metalloids having a saturated vapor pressure much lower than that of manganese, and the fusion temperature of the alloy is lower than that of pure manganese and lower than the recrystallization temperature of the material of the wire. The beads are formed by securing blocks of the alloy to the wire by means of electric welding, after which the blocks are fused around the wire and are cooled.

Abstract: High current ion implanter of the type comprising, in a vacuum enclosure, an ion source, means for extracting these ions, scanning means and a sample-carrying target, wherein the scanning means are of the electrostatic type and comprise deflecting plates connected to a sawtooth-variable voltage source and wherein a regulatable magnetic refocussing means are disposed in the vicinity of said plates.A particular application of the invention is to the construction of ion implanters intended for use in the manufacture of semiconductors.

Abstract: Two current supply conductors connected to an emissive filament located within a vacuum enclosure are each constituted by a leak-tight tube formed of material other than a heavy metal which traverses the enclosure wall through a leak-tight bushing, and by a conductor of electrically conductive heavy metal such as copper which is placed inside the leak-tight tube and completely isolated from the vacuum enclosure. This arrangement permits the continued use of heavy metals such as copper for current supply to ion sources without any attendant danger of heavy metal ion formation in the emitted beam.

Abstract: The extraction electrode consists of a metallic screen provided with an opening and placed within a vacuum chamber in front of an ion source, the screen being brought to a negative potential with respect to the source. Displacement of the electrode is controlled from the exterior of the chamber by two mechanical systems for independent displacement of the two lateral sides of the screen. Each system comprises a deformable parallelogram pivotally coupled to a member for supporting one side of the screen and to a member which is slidably mounted on a guide column, and a mechanism for controlling the deformation of the parallelogram by means of a link-arm rigidly fixed at one end to a toothed wheel in mesh with an endless screw and control rod which is accessible from the exterior of the chamber. The invention is primarily applicable to the construction of ion implanters, especially for the fabrication of semiconductors.