Abstract: The present invention is directed to a cathode ray tube having a neck portion and a funnel portion at one end of the neck portion. A yoke extends around the neck portion and has a printed circuit board mounted thereon. The printed circuit board includes a plurality of pins mounted on and projecting in the same direction from the board and a plurality of electrical components mounted on the board and electrically connected in a desired circuit and to the pins. The pins are shortened so as to be of a length that at the operating frequencies of the yoke they do not emit a substantial amount of electromagnetic radiation.

Abstract: The present invention is directed to an AC termination which includes a substrate having first and second surfaces. A resistor is mounted on the first surface of the substrate. An input termination is at one end of the resistor. At least one plate of a capacitor is on the substrate and is electrically connected in series with the other end of the resistor. In one form of the termination, the capacitor is a metal film on the substrate extending from the other end of the resistor to and across the second surface of the substrate to form one electrode of the capacitor. A dielectric layer is over the metal film and another metal film extends over the dielectric layer to form the other electrode of the capacitor and the output termination of the termination. In another form of the termination, the capacitor is formed on a cover plate which extends over the first surface of the substrate and is electrically connected between the resistor and an output termination.

Abstract: An optical device includes a body of a semiconductor material having a waveguide therein along which light flows and means for providing gain to the light. A layer of an amorphous or polycrystalline metallic-ferromagnetic material extends along the waveguide and means, such as a permanent magnet, provides a magnetic field to the metallic-ferromagnetic material layer. This provides an optical isolator of the Faraday rotation type which can be integrated with a variety of material systems including those commonly used to fabricate semiconductor lasers, arrays and amplifiers.

Abstract: The present invention is directed to an AC termination which includes a substrate having first and second surfaces. A resistor is mounted on the first surface of the substrate. An input termination is at one end of the resistor. At least one plate of a capacitor is on the substrate and is electrically connected in series with the other end of the resistor. In one form of the termination, the capacitor is a metal film on the substrate extending from the other end of the resistor to and across the second surface of the substrate to form one electrode of the capacitor. A dielectric layer is over the metal film and another metal film extends over the dielectric layer to form the other electrode of the capacitor and the output termination of the termination. In another form of the termination, the capacitor is formed on a cover plate which extends over the first surface of the substrate and is electrically connected between the resistor and an output termination.

Abstract: A temperature variable phase-shifter formed of passive components. The phase-shifter includes a power divider which is adapted to receive a signal and divide the signal into two components which are 90.degree. out of phase with each other. The outputs of the power divider are connected to positive and negative temperature variable attenuators which attenuated the components of the signal. The temperature variable attenuators are connected to a combiner which sums the attenuated signals from the temperature variable attenuators.

Abstract: The present is directed to a cathode ray tube having compensation plates for compensating the misconvergence of the paths of the beams of the tube resulting from the earth's magnetic fields, The cathode ray tube includes a neck portion and a funnel portion with a face plate, A gun is in the neck portion and is adapted to generate three electron beams and direct the beams toward the face plate. Purity convergence magnets are around the tube adjacent the neck, The compensation plates are between the purity convergence magnets and the tube and extend in parallel relation to the beam paths at opposite sides of the beams.

Abstract: A container for cleaning liquid solution for a carpet dry cleaning apparatus includes an outer wall having a cylindrical front portion and a flat back portion, an annular bottom wall at the bottom edge of the front portion of the outer wall, a top wall extending across the top edge of the outer wall, an inner wall extending around the inner edge of the bottom wall spaced inwardly from and extending along a portion of the front portion of the outer wall, and an inner bottom wall extending from the top edge of the inner wall to the back portion of the outer wall. The walls form a chamber for the cleaning liquid solution which extends across a portion of the inner bottom wall and annularly between the inner wall and the front portion of the outer wall. The container is adapted to fit over and around a motor mounted on a base of a carpet dry cleaning machine and can be secured to the base by screws extending from the bottom wall into the base.

Abstract: A low profile load resistor includes a base plate of an electrically conductive material having a pair of opposed flat surfaces and a hole therethrough. A chip resistor is mounted on one of the surfaces of the base plate. The chip resistor includes a substrate of an electrical insulating material having a pair of opposed flat surfaces and a hole therethrough which is aligned with the hole in the base plate. A resistance film is on one of the surfaces of the substrate and has termination films at opposite ends thereof. A termination tab is electrically connected to one of the termination films and extends through the holes in the substrate and base plate. The other termination film is electrically connected to the base plate. A cover plate of an electrical insulating material is over the resistor film and is mechanically connected to the substrate.

Abstract: A hybrid coupler which includes a substrate of an insulating material having a pair of opposed surfaces. A conductive ground plane is on one of the substrate surfaces. A pair of conductive transmission lines are over the other substrate surface and a layer of a dielectric material is over the other substrate surface. Each of the transmission lines has one portion which is on the substrate surface and under the dielectric layer, another portion which is over the dielectric layer and a connecting portion which electrically connects the two portions of the transmission line. Each of the connecting portion extends through an opening in the dielectric layer and one of the connecting portions crosses over the other connecting portion. The portions of the transmission lines may extend in straight lines, in a serpentine path or in a rectangular path.

Abstract: An electrical terminal for an electrical component to surface mount the component on a printed circuit board with the component extending upright from the printed circuit board. The electrical terminal includes a metal strip having a pair of spaced tabs extending in the same direction from the metal strip to form an U-shaped clip within which the electrical component fits. A separate foot extends from each tab with the feet being aligned in the same plane and extending in opposite directions from the tabs. The feet are adapted to seat on the surface of a printed circuit board to support the electrical component in the upright position on the board. A plurality of the terminals are mounted in spaced relation along an edge of the electrical component and can be soldered to terminal pads on the electrical component to electrically and mechanically connect the terminals to the electrical component.

Abstract: A plasma processing apparatus has a chamber with an open top and a cover plate extending across the open top of the chamber. The cover plate has an opening therethrough. An annular shield of an electrical insulating material is secured to the cover plate around the opening and extends partially across the opening. An aluminum showerhead is within the shield and has holes therethrough through which a gas can pass into the chamber. The showerhead is connected to a source of RF voltage to provide a flow of RF power between the showerhead and an electrode within the chamber. The shield has a plurality of openings therethrough which allows the RF power to flow through the openings from the showerhead to the electrode in the event that the showerhead becomes coated with particles of an insulating material.

Abstract: A holder for an interdental toothcleaner of the type having a substantially rigid but flexible stem and cleaning means on the stem. The holder includes a neck having a tip projection radially therefrom adjacent one end thereof and a slot extending longitudinally therealong from the one end and diametrically opposite the tip. A hole extends through the tip and transversely across the neck to the slot. A cap having a passage therethrough which is open at one end and closed at the other end is on the neck and slidable therealong. The cap has a first slot therethrough which extends from its open end and in which the tip slides. The cap has a second slot therethrough diametrically opposite the first slot. The second slot is closed at both ends with the ends being spaced from the ends of the cap. The stem of a toothcleaner passes through the hole in the tip and projects beyond the groove in the neck and through the second slot in the cap.

Abstract: An apparatus for dry cleaning carpets and the like includes a base having a pad holder at its bottom and a motor on its top. The motor is connected to the pad holder to rotate the pad holder. A handle extends from the base and wheels are mounted on the base. A liquid cleaning solution container is mounted on the motor. A bottom plate having an annular flange extending downwardly from its periphery is mounted on and secured to the top of the motor by bolts extending through the bottom plate and threaded into the motor. A top plate having an annular flange extending upwardly from its periphery is mounted on and secured to the bottom of the container by bolts extending from the container through holes in the top plate and nuts threaded on the bolts. The top plate is seated on the bottom plate, and a rigid but slightly resilient pad is provided between the top and bottom plates.

Abstract: A method of limiting sticking of a body (substrate) to a susceptor after the body has been coated with a layer in a deposition chamber by plasma chemical vapor deposition includes subjecting the coated body to a plasma of an inactive gas, e.g., hydrogen, nitrogen, argon or ammonia, which does not adversely affect the coating and does not add additional layers to the body. After the coated body is subjected to the plasma of the inactive gas, the body is separated from the susceptor.

Abstract: The cooling air flow path extends from a blower through a tapered input duct to a large plenum chamber which coaxially surrounds and extends over the top of the deposition apparatus. From this plenum chamber cooling air flows coaxially downward over the surface of the quartz bell jar which forms the reaction chamber, and radially inward through the banks of radiant heater lamps coaxially surrounding the bell jar. Each bank of heater lamps is readily removed for servicing by being rotated into an open position about a pivot axis extending along one verical edge. From the open position, the bank can be slid sideways in slots in the supports and removed from the apparatus.

Abstract: A surface emitting semiconductor laser includes a body of a semiconductor material having a pair of opposed surfaces and a plurality of active regions stacked one on the other between the surfaces. Each of the active regions includes a p-type conductivity layer, an n-type conductivity layer and an active layer therebetween. The active layer can either be intrinsic or a quantum well. The p-type and n-type layers are doped to provide a tunneling junction between the layers of adjacent active regions. The active layers of the active regions are spaced apart a multiple of one-half a wavelength to provide distributed feedback. Contacts are on the surfaces of the body with one of the contacts having an opening therethrough through which a generated light beam can emerge.

Abstract: A system for retrieving information on a random basis from a disc having the information thereon in a spiral path around the disc. The system includes a turntable rotatable about a central spindle and adapted to support the disc thereon. An arm housing is fixedly mounted over the turntable and contains printed circuit boards having some of the electrical circuitry for the system. Also in the arm housing is a rectangular frame like cartridge holder which supports a cartridge having a stylus therein. The stylus is adapted to ride on the disc to read out the information from the disc. A piston is connected to the cartridge holder and extends through the arm housing. A motor is connected to the piston and is adapted to move the piston so that the cartridge holder is moved with respect to the arm housing and the stylus moves radially along the disc. The motor moves the stylus over the short distance of the radius so as to quickly and easily obtain random access to the information in the disc.

Abstract: The present invention relates to an optical switch which will generate and emit a beam of light when an optical signal is directed therein, but includes means to inhibit the generation of the beam of light when a second optical signal is directed therein. The switch includes a light emitter formed of a plurality of layers of alternating opposite conductivity type which is adapted to generate the beam of light when an optical signal is directed therein. A photovoltaic inhibitor is connected to the emitter so that any current generated by the inhibitor is applied across the emitter in a manner to prevent the generation of the light in the emitter. The photovoltaic inhibitor generates the current when a second optical signal is directed therein. Depending on the external circuit, the device can be operated in either a digital (bistable) or analog mode.