Abstract: This invention relates to an adhesive article which provides air egress. Air egress is provided by supplying a route, such as areas of no initial adhesion for the air to flow out from under the construction. The invention relates to an adhesive article comprising a facestock having a front surface and a back surface, a continuous layer of adhesive having an upper surface and a lower surface wherein the upper surface of the adhesive layer is adhered to the back surface of the facestock, and a plurality of spaced-apart non-adhesive material which is in contact with the lower surface of the adhesive layer wherein the lower surface of the adhesive layer has a Sheffield roughness of at least about 10 and the adhesive article provides air egress. The invention also relates to methods of preparing the adhesive articles. These articles have usefulness as industrial graphics images, as well as decorative coverings, etc. The articles provide air egress and optionally repositionability and slideability.

Abstract: In order to inexpensive construction materials effectively utilizing timber resources and realizing any desired properties by using so-called low-quality materials including slim timbers, old timbers, wood cuttings produced by lumbering, bamboo, and so forth, wood, bamboo and other wooden source materials are split into fragments along their fibers by water vapor explosion, and such explosive-split fragments are shaped and hardened by adding an adhesive, mortar or expandable resin into a new wooden material such as multi-layered board, cement board or foamed resin board of explosive-split fragments. The explosive-split fragments are also usable in various fields other than fabrication of the new material.

Abstract: The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermosettable layer with a substrate and heating the sheet material to an elevated temperature.

Abstract: A film of a polymer or polymer precursor such as an epoxy resin is autodeposited on an active metal surface and then used to form an adhesive bond directly between the metal surface and the surface of a rubber substrate. Excellent adhesion of the metal to the rubber is obtained without the need to either phosphate the metal surface or use a primer or adhesive other than the autodeposited coating.

Abstract: A remote plasma generator, coupling microwave frequency energy to a gas and delivering radicals to a downstream process chamber, includes several features which, in conjunction, enable highly efficient radical generation. In the illustrated embodiments, more efficient delivery of oxygen and fluorine radicals translates to more rapid photoresist etch or ash rates. A single-crystal, one-piece sapphire applicator and transport tube minimizes recombination of radicals in route to the process chamber and includes a bend to avoid direct line of sight from the glow discharge to the downstream process chamber. Microwave transparent cooling fluid within a cooling jacket around the applicator enables high power, high temperature plasma production. Additionally, dynamic impedance matching via a sliding short at the terminus of the microwave cavity reduces power loss through reflected energy. At the same time, a low profile microwave trap produces a more dense plasma to increase radical production.

Abstract: There is provided an in-line egg labelling system for applying a label on eggs travelling into grippers of a conveyer, such as a chain conveyer, said system comprising at least one labelling device mounted beneath said conveyor and provided with a label applying arm for applying a label on an exposed area of an egg surface, preferably on a generally downwardly facing area thereof. The conveyer is preferably part of an egg packing system comprising a packing controller. The labelling system further comprises a computerised labelling control system and a user interface for the automatic individual selection of the eggs to be labelled on the basis of at least one user set parameter and one input parameter communicated by the packing controller to indicate the destination of each egg.

Abstract: A tire building apparatus comprises a group of many segments enlarging to pushingly lock a bead portion of a green tire, a ring-shaped inner piston engaging with each segment of such a group, a ring-shaped outer piston contacting and engaging with a back face of the inner piston, a cylinder slidably housing the inner piston and the outer piston therein, a pair of gas pressure acting means moving each of the inner piston and outer piston inward or outward in the direction of the axial line, and a stopper formed in the cylinder.

Abstract: In a single-point bonding apparatus that connects the end portions of leads or the cut end portions of leads to pads respectively by pressing such end portions of leads or cut end portions of leads with a tool, a cleaning stage that is used to clean the tool is additionally provided, and a cleaning chip is disposed on the surface of the cleaning stage.

Abstract: A system for adding weight to and/or balancing the bottom rail of a window covering includes one or more body members positioned within the bottom rail, and each body member having a plurality of sockets for receiving weights. In the most preferred form of the invention, the sockets are horse-shoe shaped are adapted to receive elongate rods having a circular cross-section. The plurality of sockets in the most preferred embodiment include sockets located adjacent the front of the bottom rail when the body member is in place and other sockets arranged toward the rear. Weighting and balancing is achieved by placing one or more rods in selected ones of the sockets.

Abstract: Disclosed is a spring motor and control for use especially with window blinds. The motor comprises a storage drum having a first axis, an output drum mounted for rotation about a second axis parallel to and spaced from the first axis. A spring member is connected to and between the storage drum and the output drum to form a spring motor. The spring motor has laterally extending, spaced apart drum supports on opposite sides of the drums to support them for rotation. A coupled drive is connected to the storage and output drum whereby rotation of one of the drums in a first direction about its axis effects rotation of the other of the drums about its axis and in an opposite direction to cause winding and unwinding of the spring member between the drums.

Abstract: In a spring-loaded curtain mount, the mount includes a pole interface at a proximal end, a compressive mechanism, and a head at a distal end. The pole interface is adapted to receive the end of a standard length adjustable pole or a painter's pole. The compression mechanism is disposed between the proximal end of the mount and the head. The mount includes a coupling device adapted to receive a portion of a curtain. During installation, the curtain mount is coupled to the end of an extension pole and the length of the pole is adjusted such that the combined length of the pole and mount is slightly longer than the distance between the floor and ceiling. At ground level, a portion of the curtain is attached to the head of the curtain mount. The curtain and mount are raised to the ceiling and the mount and pole are compressed between the floor and the ceiling. This compressive force operates to urge the head toward the ceiling, securing the mount in place.

Abstract: A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under conditions selected so as to preclude substantial fibrillation and attendant paper strength and fiber bonding development; and (b) recovering the pulp wherein the length weighted curl index of the treated fiber is at least about 20% higher than the length weighted curl index of the fiber prior to the heat treatment and convolving thereof. Preferably, the curl imparted to the fiber persists upon treatment for 30 minutes in a laboratory disintegrator at 3000 rpm at 1% consistency at a temperature of 125° F. Moreover, the curl may be imparted to the fiber in a disk refiner at very short residence times, on the order of several seconds or less.

Abstract: A hybrid system for processing papermaking fibers includes a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a typical embodiment, a first rejects aqueous stream from a first stage bank of centrifugal cleaners is treated in a flotation cell before being fed to a second stage bank of centrifugal cleaners.

Abstract: Method and apparatus for controlling the mixing proportions of feed streams being supplied to a headbox, using devices for sampling two or more of the feed streams upstream of the headbox and devices for measuring concentration of constituents in or other properties of those samples. A method of regulating one or more properties of a moving web, and especially a paper web during manufacture, employing the aforesaid method and apparatus are also disclosed.

Abstract: A device for producing metal/ceramic composite materials includes (1) an injection plunger; (2) a casting chamber having an opening through which casting metal is poured in and a ceramic precursor product is shot in; and (3) a die having a runner and a die cavity. A shot head is used to shoot ceramic powder into a die, so that the powder is compacted to form a porous preform. The preform is infiltrated with liquid metal under pressure in the die.

Abstract: By determining an amount of a metal to be prepared into a slurry in its liquid state, thereafter applying a motion to the melted metal via a mechanical or physical means when at least a part of the melted metal reaches a temperature below the liquidus temperature and cooling the melted metal in a slurry preparing container to prepare the melted metal into a metal slurry in a semi-solid state, and by concurrently making the semi-solid metal slurry in the slurry preparing container with a shape to be kept almost unchanged, and feeding the semi-solid metal slurry in a state wherein the shape is nearly kept as it is into the shot sleeve/prechamber of the part making machine, a semi-solid metal slurry with the non-dendritic (spherical) primary crystal particles being fine and almost uniform can be fed into the part making machine, with no need of any specifically complex process but with a simple system and plain equipment. Thus, a shaped part with high quality can be produced.

Abstract: A casting die comprises upper and lower dies, each having integral projections for forming holes in a resulting die-cast product. When the upper and lower dies are engaged together, their respective projections are matched and contacted with one another to define bridge-like inner die elements between the two dies, so that holes may be readily formed via those inner die elements in a product being cast in the dies.

Abstract: An apparatus and method for pressure casting a battery part wherein the state of molten lead is monitored so that when the molten lead enters a liquid-to-solid transformation stage, the volume of the mold available for the lead to solidify therein is quickly reduced through a volume contraction step to thereby cause the molten lead to flow into the remaining volume at the same time one maintains pressure on the molten lead. As the molten lead solidifies under the reduced volume and high pressure it produces a battery part that is substantially free of both tears and cracks. In an alternate method, the lead is allowed to solidify and at least a portion of the lead is mechanically deformed through a volume contraction step to cause cracks or tears in the battery part to be eliminated thereby providing a battery part free of cracks or tears.

Abstract: The invention relates to a method for continuously casting thin metal products, the method comprising the operations of pre-heating a pair of refractory plates (7) for the lateral containment of a bath of molten metal constituted of a pair of counter-rotating rolls (1, 2) and of abutting said pair of plates (7) towards each lateral surface of the ends of said pair of rolls (1, 2), characterized in that it comprises the operations of applying a controlled elastic or elastic/plastic deformation to said pair of plates (7) at the contacting arc between the surface of the plates (7) and the peripheral portion of the ends of said rolls (1, 2), and controlling said elastic and/or elastic-plastic deformation of said pair of plates (7) during the whole casting process, so as to minimize the surface wear of the plates (7) and of the ends of the rolls (1, 2), and to guarantee the maintainment of a predetermined distance between said rolls (1, 2) and said plates (7) lower than a predetermined value, and to minimize the o

Abstract: In a vehicle air conditioner, an evaporator is disposed at an upper side of a blower approximately horizontally so that air blown by the blower passes through the evaporator from below upwardly. The evaporator is slightly tilted from a horizontal surface by a predetermined angle, and the blower is disposed in such a manner that a main flow of air blown by the blower is toward a tilt upper side of the evaporator. Accordingly, condensed water collected at a tilt lower end side of the evaporator is not disturbed by a pressure of the main flow of air blown from the blower.

Abstract: To enhance a cooling efficiency of a cooling device using an axial fan motor, air rectification blades 1 are provided with hooks 1e engaged with a flange 2b of an axial fan motor 2 for fixing the air rectification blades 1 to the axial fan motor 2. The attachment/detachment of the air rectification blades 1 to the axial fan motor 2 is performed in a so-called one-touch manner without using any tool or jig by flexing the hooks 1e. It is possible to obtain the axial fan motor provided with the air rectification blades having optimum characteristics by attaching/detaching the air rectification blades 1 in the one-touch manner in a situation where the air rectification blades 1 are needed later for the axial fan motor not provided with any air rectification blades or the characteristics of the air rectification blades 1 are to be changed.

Abstract: A heat sink-type cooling device is provided which can enhance the amount of heat dissipated without increasing the size of the fins, and which is miniaturized and has high cooling capacity. A heat sink-type cooling device comprises a heat sink that is provided with a passage through which coolant flows, and that removes heat from electronic devices contacting with the upper surface of the heat sink. Fin groups are provided in the passage, each of which is comprised of a plurality of fins that are disposed in parallel with the direction of the coolant flow and are aligned in the thickness direction thereof. Fins of a fin group and other fins of another fin group adjoining the fin group in the direction of the flow are placed at a distance in the thickness direction of the fins.

Abstract: A vibrated bed of particles is created by vibrating a chamber. Particles are flowed to a ceiling of the chamber and cascade through a gas flowing though the chamber, exchanging heat with the gas. Particles spouted to the ceiling spread there and cascade. Larger particles, raissed above the ceiling by a lateral vibrated elevator, cascade from channels beneath openings in the ceiling. A plenum and tubes release protective gas through the vibrated bed. Tubes embendded the vibrated bed move fluid to exchange heat with the particles in the vibrated beds. Serialized chambers are reversed and particles flow from one chamber to another.

Abstract: A heat exchanger includes a shell having an open end and a closed end and defining a shell cavity. A steam inlet is located adjacent the closed end and communicates with the shell cavity to allow steam to enter the shell cavity. A flange is coupled to the shell adjacent the open end. The flange includes a first passageway communicating with the shell cavity for receiving a tube bundle, and a second passageway communicating with the shell cavity to allow condensate to drain from the shell cavity. Preferably, the shell has a longitudinal axis and the second passageway has a longitudinal axis that is oriented substantially normal to the longitudinal axis of the shell. The second passageway is positioned in the flange to allow condensate to the drain from the shell cavity regardless of whether the heat exchanger is oriented vertically or horizontally.

Abstract: A heat exchanger utilizing active fluid transport of a heat transfer fluid has multiple discrete flow passages provided by a simple but versatile construction. The microstructured channels are replicated onto a film layer which is utilized in the fluid transfer heat exchanger. The surface structure defines the flow channels which are generally uninterrupted and highly ordered. These flow channels can take the form of linear, branching or dendritic type structures. A cover layer having favorably thermal conductive properties is provided on the structured bearing film surface. Such structured bearing film surfaces and the cover layer are thus used to define microstructure flow passages. The use of a film layer having a microstructured surface facilitates the ability to highly distribute a potential across the assembly of passages to promote active transport of a heat transfer fluid. The thermally conductive cover layer then effects heat transfer to an object, gas, or liquid in proximity with the heat exchanger.

Abstract: A fin (9) includes a perforated and/or recessed corrugated product which has a main direction of corrugation (F1) and which is bounded by two lateral edges (13). The main direction of corrugation (F1) is oblique with respect to the two lateral edges (13). The fin is useful in the main heat-exchange lines of air distillation plants.

Abstract: A refrigerant tube for heat exchangers is disclosed. The refrigerant tube has an outer diameter of not larger than 5.3 mm, with a plurality of internal spiral fins formed on the inner surface of the refrigerant tube. The refrigerant tube has a thickness of 0.16 mm˜0.2 mm. The internal spiral fins are set in their number to 40˜50, and each have a height of 0.15 mm˜0.18 mm, a projection angle of 38°˜42°, and a spiral angle of 6°˜20°. Due to the internal spiral fins in addition to the reduced outer diameter of the refrigerant tube, the tube reduces the production cost of heat exchangers and accomplishes the recent trend of compactness of the heat exchangers. The tube also has several advantages expected from small-diameter refrigerant tubes, such as a reduction in air-side pressure loss, and improves heat transfer efficiency of the heat exchangers. This refrigerant tube thus enhances the heat exchange operational performance of the heat exchangers.

Abstract: Subsurface wellbore conditions are measured directly in the wellbore while the fluid circulation system is not pumping. The measured values are recorded at the subsurface location and subsequently transmitted to the well surface when circulation is resumed using fluid pulse telemetry (FPT). Real-time measurements made when the fluids are circulating are transmitted real time using FPT. Axially spaced measurements are used to obtain differential values. The apparatus of the invention comprises an assembly carried by a drill string that is used to selectively isolate the area within the well that is to be evaluated. The apparatus includes an assembly having axially spaced inflatable well packers that are used to isolate an uncased section of the wellbore. The apparatus is equipped with self-contained measuring and recording equipment, a fluid receiving reservoir, circulation valving, measurement while drilling equipment, and automated controls.

Abstract: A gravel pack is formed using a mixture of a solid deformable material and conventional gravel pack gravel. In the event of reservoir compaction, such a gravel pack will reduce the transmission of forces from the subterranean formation to the wellbore completion hardware, thereby significantly extending the life of a well. Deformable materials selected for mixing with conventional gravel may be elastically flexible, plastically deformable, or crushable solid materials or particles.

Abstract: This invention relates to fuel cells, and in one embodiment, to fuel cells that are especially well suited for downhole use in oil and gas wells, and for subsea use in connection with offshore wells.

Abstract: A subterranean oil or gas well apparatus is provided. The apparatus includes a single-bore production tubing hanger arranged concentric with a wellhead. The tubing hanger includes a plurality of ports and channels arranged about the tubing hanger to give operators access to the production tubing annulus and provide chemical injection capability. The ports are closable by a sliding valve. The apparatus also includes annulus and production radial-bore stab assemblies between a christmas tree and an internal crossover assembly. The stab assemblies are extendable and retractable between the chirstmas tree and the crossover assembly to allow the retrieval and installation of each independently.

Abstract: A downhole gas compression system is adapted for location in a bore of a natural gas-producing well (10), the system comprising an axial flow compressor (32) and a gas-filled electric drive motor (30). The motor drives the compressor to compress the produced gas, the compressed gas being directed upwardly through production tubing (20) to surface.

Abstract: A multi-gradient system for drilling a well bore from a surface location into a seabed includes an injector for injecting buoyant substantially incompressible articles into a column of drilling fluid associated with the well bore. Preferably, the substantially incompressible articles comprises hollow substantially spherical bodies.

Abstract: A through-tubing multilateral system for downhole oil drilling operations includes a tubing extension positioned in a downhole end of a tubing string in a wellbore and an anchoring system configured and positioned to anchor the tubing extension in the wellbore. The tubing extension is dimensioned to accommodate the installation of a multilateral junction therein and has an outside diameter that is less than an inside diameter of the tubing string. The tubing extension has a body portion configured to be tubular in structure and a thin walled section attached to one end of the body portion. The thin walled section has a wall thickness that is less than a wall thickness of the body portion.

Abstract: A multilateral reference point sleeve includes a tubular member configured to be received in a tubing string of a wellbore. The tubular member has an uphole end and a downhole end. The uphole end is angled to define an orientation profile, and the orientation profile has an orientation slot extending therefrom. A method for orienting a tool in a wellbore includes running the multilateral reference point sleeve into the casing in the wellbore, anchoring the sleeve to an inner surface of the casing, running the tool into the tubing string, causing a pin on the tool to engage the orientation profile on the sleeve, and causing the pin on the tool to engage the orientation slot on the orientation profile.

Abstract: A pack-off system for packing off an area of interest in a wellbore, the pack-off system comprising a body, two spaced-apart selectively settable packing elements on the body for sealing off the area of interest, selectively actuatable setting apparatus connected to the body for selectively setting the two spaced-apart selectively settable packing elements, the selectively actuatable setting apparatus actuatable by fluid under pressure introduced into the pack-off system. A method for packing off an area of interest in a wellbore, the method including installing a pack-off system as described herein in the wellbore to pack-off the area of interest. Such a method may also include flowing treatment fluid from the pack-off system to an area of interest in an earth formation and/or adjacent a wellbore in the earth.

Abstract: A pneumatic actuator having AND gate logic characteristics is disclosed. The actuator has three chambers each divided into two chamber portions by respective flexible diaphragms. One of the diaphragms acts as a valve closing member and controls the flow of a pressurized fluid through the actuator to actuate an associated device when fluid flow is permitted. The other two diaphragms are in mechanical contact with one another and in hydraulic communication with the one diaphragm and thereby control its motion, keeping it normally closed and preventing fluid flow but allowing it to move into an open position permitting fluid flow and actuation of the associated device only when each of the two diaphragms are subject to separate, concurrent drops in pressure which allows both of them to deflect away from the one diaphragm.

Abstract: A vibration-isolating member is formed of an elastic material, and has a mounting hole at the center thereof, a large diameter section at an end of the mounting hole, a groove at the periphery of the large diameter section, and a flange. One of a vibration-source-side member and a vibration-receiving member is fitted into each of the large diameter section and the groove. An end opposite from the large diameter section is secured to one of the vibration-receiving member and the vibration-source-side member by a mounting member. Since the inside diameter of the large diameter section is larger than any other part of the mounting hole, either of the vibration-source-side member or the vibration-receiving member and the mounting member can be received. The flange prevents the vibration-isolating member from disengaging from one of the vibration-source-side member and the vibration-receiving member.

Abstract: A two-position tool has a pair of housing members rotatable with respect to one another. A locking mechanism is coupled with one of the housing members to lock the two housing members in a plurality of positions with respect to one another. In a first position, the axes of the housing members are substantially colinear with one another and in a second position, the axes are angled with respect to one another. The locking mechanism includes an activation member and a pin coupled with the activation member. A detent member is coupled with one of the housing members. The detent member has a plurality of detents to receive the movable pin to lock the housing member in the plurality of positions.

Abstract: An electrical junction box or mounting assembly includes a box having a top wall and a side wall. The side wall extends downwardly away from the top wall and defines a cavity therein. A fixture support is disposed in the cavity. A recess or removed portion is provided on the support, and the removed portion is configured for receiving the inner face of the radiused portion of the box disposed between the top wall and side wall so as to not interfere therewith. A threaded hole for receiving fasteners of a fixture to be supported thereby may be provided on the fixture support. Preferably, the fixture support is sufficiently smooth for preventing wear to plastic-coated electrical wire which engages exposed surfaces of the fixture support.

Abstract: A cable with at least one transmission element (A), which is surrounded by a sheath (M) of insulation material. To simplify stripping of the insulation, the sheath (M) is composed of an inner layer (3) and an outer layer (4), which are firmly bonded together. The values for tensile strength and elongation at break of the inner layer (3) are designed to be clearly lower than those of the outer layer (4).

Abstract: An olefin-based resin composition contains (a) 39-94 parts by weight of a propylene homopolymer or propylene-ethylene copolymer of at least 50 wt. % propylene content, having a melt-flow rate of 0.1-5 g/10 min, (b) 1-20 parts by weight of a polypropylene modified with 0.1-10% by weight of an acid anhydride, (c) 5-60 parts by weight of a styrene-based polymeric elastomer modified with 0.1-10% by weight of an acid anhydride, the total of components (a), (b) and (c) being 100 parts by weight, and (d) 30-200 parts by weight of a metal hydroxide. This halogen-free resin composition has a good balance of properties such as wear resistance, flame resistance, tensile properties and flexibility, which are required for the covering material of an electrical wire for an automobile.

Abstract: Flexible wiring boards showing a small electrical resistance and yet having a small width.

Abstract: A circuit board (5) is described, consisting of at least two individual circuit board layers (10) made of plastics and produced by formation technique, which each have first and second functional sides and at least one microstructured positioning formation (16) on each of the first and second functional sides and at least one microstructured conductor trench (12) on one of the functional sides, the conductor trench (12) being provided with a metallization (18). This allows a low expenditure production of circuit boards having a high packing density.

Abstract: An electrode wiring structure is disclosed which realizes a semiconductor apparatus as a power semiconductor module with the current path set as shortest as possible and uniformly. The semiconductor apparatus includes: a plurality of semiconductor devices mounted in one array or more on a substrate; a main current electrode mounted along the array(s) of the semiconductor devices, and commonly connected to each of the plurality of semiconductor devices through the substrate. The substrate is connected to the main current electrode through a plurality of wires arranged along the array(s) at equal or substantially equal distances.

Abstract: A printed-wiring substrate including a capacitor element, as well as a method for fabricating the printed-wiring substrate. An insulating substrate 3 is molded by placing a capacitor element 13 in a mold and charging a resin 4 into the mold. Therefore, the capacitor element 13 having a size (i.e., electrostatic capacitance) sufficient to suppress switching noise of an IC chip 15 and stabilize operation power voltage can be disposed, while providing a dimensional margin. Since the possibility of failing to embed the capacitor element 13 decreases, the printed-wiring substrate can be fabricated at reduced cost.

Abstract: The invention provides an electronic circuit unit that is suitable for miniaturization and excellent in high frequency characteristic. Capacitors and a wiring pattern are formed on an alumina substrate by means of thin film forming technique, and a part of the wiring pattern is served as the connection land for mounting a bare chip of a transistor. Among the capacitors, the top electrode of the capacitor is served also as a part of the connection land, and the bottom side collector electrode of the bare chip is connected to the connection land by use of conductive adhesive. Top electrodes of the residual capacitors are served as the bonding pad, and the base electrode and the emitter electrode on the top side of the bare chip are connected to the top electrodes of the respective capacitors by a wire.

Abstract: A wiring substrate with reduced thermal expansion stress. A wiring substrate, such as a laminated PWB, thin film circuit, lead frame, or chip carrier accepts an integrated circuit, such as a die, a flip chip, or ball grid array package. The wiring substrate has a thermal expansion stress reduction insert, void, or constructive void in a thermal expansion stress region proximate to the integrated circuit. The thermal expansion stress reduction insert or void may extend a selected distance from the edge or edges of the integrated circuit attachment area. The thermal expansion stress reduction insert or void improves the flexibility of the wiring substrate in the region that is joined to the integrated circuit, thus reducing thermal stress between components of the wiring substrate-integrated circuit assembly. In another embodiment, layers of a laminated wiring substrate are intentionally not bonded beneath the chip attach area, thus allowing greater flexibility of the upper layer of the laminate.

Abstract: ABSTRACT OF DISCLOSURE Low temperature co-fired ceramic (LTCC) multichip modules are used to provide high density interconnects between electronic elements. A ceramic carrier includes a number of cavities which are sized to receive a variety of submodules. The submodules are constructed to hold a variety of circuit elements, such as circuit dice and provide the conduction paths for establishing interconnections between these chips. These circuit elements are attached on one side of the submodule and electrical contacts are provided on the opposite side. Upon installation into the cavity in the carrier module, the submodule is flipped such that the electrical connections are exposed. Once in the cavity, a layer of flex circuitry is applied over the submodule and the ceramic carrier in order to establish electrical connection between electrical elements in the submodules as well as components external to the ceramic carrier.

Abstract: A drill head for an apparatus for directional boring according to the invention includes a bit, a holder for a device for detecting angular orientation of the bit, and a hammer including a striker for delivering impacts to the bit, wherein the bit assembly, holder and hammer are connected head to tail with the bit at a front end. The bit of the invention has a frontwardly facing main cutting surface having a plurality of main cutting teeth disposed thereon and a gage tower extending radially outwardly from the main cutting surface, which gage tower has at least one frontwardly facing gage cutting tooth thereon suitable for cutting over an angle defined by less than a full rotation of the bit. The device for detecting angular orientation is in a predetermined alignment with the gage tower so that it determines the orientation of the gage tower relative to the axis of rotation of the drill head.