Abstract: A circuit package exhibiting an excellent heat transfer path from a semiconductor chip or other heat-generating device to the heat-sink can or cover of the package. A heat-conducting pad is metallurgically bonded to either said cover or a surface of said device; the pad is also separably attached, but metallurgically unbonded, to the other. In one preferred embodiment, a readily deformable metal or alloy, such as indium, is metallurgically bonded to a limited central region of the heat sink cover. The deformable metal is separably attached to a major surface of the chip so that there is no stress between the chip or its joints and the solder during the electrical operation of the chip when it generates heat. The preferred method of fabrication involves the mechanical deformation of a mass of solder against the back side of the chip, after the solder has been metallurgically bonded to heat sink.

Abstract: A process for producing multi-chip wiring which facilitates high packing density and reliable flip-chip connections. In the process, an adhesive layer and a contact layer are vapor deposited onto a carrier. The desired structure of the connector path, outer contacts and connection surfaces are covered with a conductive layer and an intermediate layer with the aid of a first photo-lacquer mask by galvanic metal deposition. A solder-rejecting layer is galvanically deposited onto the structure of the conductor paths with the aid of a second photo-lacquer mask. The undesired regions of the adhesive layer and of the contact layer are etched away and the outer contacts and connection surfaces are covered with a solderable contact layer by selective currentless metal deposition.

Abstract: A plurality of sub-assemblies comprising elements of a transit vehicle are first completed individually in their respective jigs. Each of selected ones of these sub-assemblies has embodied therein an extrusion having a trackway formed thereon for alignment with a selected conveyor way provided therefor in a collector, which travels in successive cycles along a selected path on a final assembly floor. Each of said selected sub-assemblies has joint means formed thereon for interlocking engagement with complementary joint means provided on one or more of the other sub-assemblies. The selected sub-assemblies are conveyed, by means of their trackways riding along their respective conveyor ways, into the collector, and thus into interlocked relation with each other in positions of final assembly therein, where they are secured permanently in such interlocked relation. Other sub-assemblies are then added to produce a complete transit vehicle.

Abstract: A wedging member, such as a ball, is frictionally engaged with inclined supporting ends of a pair of contact elements at a calibration temperature. The wedging member retains the positioning of the supporting ends as the temperature is changed from the calibration temperature to a hardening temperature for a hardenable material, such as an inorganic-base chemical-setting cement, for rigidly securing the supporting ends.

Abstract: The invention concerns the manufacture of two-piece electrical contacts. The contacts produced by the present invention are adapted for electrically interconnecting an electrical wire with either a male pin or a female contact. The invention as described features a pair of forming steps to form each of the pieces and a step to join said pieces at the desired location.

Abstract: A clutch spring compressor tool for removing a spring retainer ring from a clutch piston assembly of an automatic transmission where the clutch piston assembly includes a drum housing having an annular slot having a shoulder fabricated on the inner periphery thereof includes resilient arm like members for supporting the tool in working position within the slot of the drum housing having secured thereto a plate that may be inserted into or under the shoulder. In addition, the tool includes a base of a variable dimension that is positioned upon the spring seat of the clutch assembly. The base is secured to a threaded shaft that may be threaded to vary the position of the base relative to the at-rest position of the spring seat in order to compress the spring seat moving it away from the retainer ring and allowing a tool to be employed to remove the ring.

Abstract: Access to mold halves disposed on and between opposed stationary and movable platens of a molding machine is facilitated by releasing and at least partially retracting, from the zone between the platens, at least one of a plurality of tie rods extending therebetween. A tie rod is at least partially removed by (1) slidingly translating the movable platen along the tie rods toward the stationary platen, (2) releasing one tie rod from connection with the stationary platen and connecting it to the movable platen, and then (3) slidingly translating the movable platen away from the stationary platen along tie rods remaining connected thereto, to at least partially retract the released tie rod from between the stationary and movable platens.

Abstract: The removal of connector pins from a panel, such as a printed circuit board, in which the pin extends from the panel and is soldered to a circuit member on one or both sides of the panel, is achieved by a tool positioned over the pin and having a main body member which is held in contact with the panel surface and with an axially sliding gripping member having a split gripping portion. The gripping member is moved by a tubular member surrounding the gripping member and which, on axial movement, forces the split gripping portion of the gripping member into firm frictional contact with the pin, further axial movement of the tubular member moving the gripping member and pin axially shearing the solder joint. The tubular member is moved by a pivotally mounted handle, the reaction from the pivoting of the handle and pulling on the pin holding the tool firmly against the panel. The pin is removed without damage to the panel and a new pin can be inserted and resoldered using the remaining solder at the joint.

Abstract: The invention relates to apparatus and a method of conveying, orienting, transferring and debunging empty beverage kegs. The apparatus includes a keg elevator for raising the kegs to the uppermost of a series of superposed endless conveyor belts. The tension of the latter is such that, where they face one another, they engage the periphery of each keg and urge it along the path of travel.

Abstract: A connector is disclosed which is made from a plurality of electrical contacts, each of which is a resilient spring, spaced along a continuous web of insulative material which serves to locate the contacts in desired positions and provides an insulation back or cover for the contacts. The method and apparatus for making the subject laminated connector is also disclosed. The plurality of contacts are first formed from a continuous strip of metal, an insulative web is laminated to the metal contacts, and the laminated connector is bent by a continuous roller or die forming operation to desired curvilinear arcuate shapes. Discrete lengths of contacts formed together with the carrier strip are broken away or otherwise separated from the carrier strip either prior to or after the bending operation.

Abstract: A wire is positioned alongside a plastic member which carries a conductor, and a portion of the wire is driven sideways into the plastic so that the wire engages against the conductor and is held in place by embedment in the plastic. The wire may be driven into the plastic by a heated tool or by ultrasonic vibration. A particular use of the invention is the connection of wires to circuit runs of printed circuit boards, such as in the FlipFlash photoflash array.

Abstract: A method of manufacturing sealed thermostats or the like is disclosed in which male and female members are assembled with an interference fit to produce a seal which is maintained through a predetermined operating temperature range. The minimum interference during assembly is selected so that such minimum interference is greater than the difference in the temperature during assembly and the most adverse seal temperature to be encountered within the temperature range, times the difference in coefficients of thermal expansion and contraction between the members times the linear dimension of the seal. In addition, the two members are selected so that the maximum total elastic deformation is greater than the difference in coefficient of thermal expansion and contraction times the difference between the maximum and minimum temperatures within the temperature range times the linear dimension.

Abstract: Deposited material is removed from an edge of a plate in the form of a strip, by positioning against the edge of the plate the periphery of a roller that has corrugations along its periphery, the corrugations having sharp edges that extend all the way around the periphery of the roller. The edge of the plate is disposed at an acute angle to the axis of the roller at least at the point of contact of the roller with the edge, and the roller is rotated about its axis in a direction to remove material from the edge of the plate in a direction edgewise away from the plate. The roller is then moved along the plate in a direction parallel to the edge of the plate while maintaining the periphery of the roller in contact with the edge of the plate. Preferably, the axis of the roller is disposed at an acute angle to the plane of the plate.

Abstract: A method and apparatus for removing a flow control device mounted between two opposed flanges of a pipeline wherein the flanges are clamped together by a plurality of studs. The method comprises the steps of clamping a pair of axially expandable flange spreaders to hold the opposed flanges in axial aligned position. Next, all of the studs are removed or loosened to permit access to the flow control device. Stop means are appended to the flange spreaders at the inside basis of the flanges. Lastly, the flange spreaders are expanded to permit removal of the flow control device from the pipeline. Reversal of the procedure will permit reassembly of the pipeline.Each of the flange spreaders comprises a pair of interconnected members that are axially expandable or contractable, and initially are clamped in position to hold the opposing flanges in axial alignment.

Abstract: Microwave absorbers reduce radar cross-sections of airborne objects by attenuating reflectivity values. In Jaumann absorbers laminated layers are placed on the reflecting surfaces, the laminated layers being lossy layers separated by dielectric spacing layers. From the point of view of accuracy and reproducibility Jaumann absorbers have been difficult to construct. A mode of fabrication overcoming these difficulties is provided herein.

Abstract: A tool for extracting press-fitted seats from annular seat recesses of a gate valve body by insertion within the flow passage from the valve chamber. The tool is generally cylindrical in shape and has a pair of spaced end caps secured to each other with a pair of spaced elastomeric annular seals between the end caps and seal retainers on each side of the elastomeric seals. Pressurized hydraulic fluid is inserted in the tool to urge the elastomeric seals outwardly; one seal being in fluid sealing contact with the seat to be removed and the other seal being in fluid sealing contact with the adjacent flow passage surface. An increase in the fluid pressure of the hydraulic fluid effects a flow of fluid in the recess behind the seat to move the seat out of its recess.

Abstract: A flexible circuit assembly and a method of making it in which there are no separate electrical interconnections between the flexible interconnecting cable and the rigid connector. A flexible insulating film is bonded to a surface of the connector member and extends from the connector to provide a flexible interconnecting cable for external electrical connections. A plurality of conductors on the insulating film provides a continuous electrically conductive path thus providing an interfaceless electrical connection between the rigid connector and the flexible interconnecting cable. In the method, a metallic clad insulating film is placed on a surface of a rigid support member which includes a portion which will serve as the connector. The support member also includes a filler block portion in the space designated for the flexible interconnecting cable. The film is selectively bonded to the connector portion of the support member. Conductors are then formed on the insulating film.

Abstract: A unitized transfer fixture for the assembly of sealing components to be applied to a shaft and for the transfer of the preassembled sealing components onto the shaft to a final position in the unit to be sealed. The transfer fixture is formed of a suitable plastic which may either be discarded or reused and consists of a two-piece telescoping assembling including a pilot and a sleeve with external diameters corresponding to the internal diameters of the seal assembly. The seal components are assembled on the telescoped pilot and sleeve, the pilot is positioned on the end of the shaft, and a tool aids the sleeve in pushing the preassembled seal off of the pilot onto the shaft to its final sealing position; after which the fixture is withdrawn.

Abstract: Hose is stripped from a mandrel by urging the tapered end of an annular nozzle at least partially beneath one end of the completed hose. Air under pressure is led to an annular shaped region defined and cooperatively formed by the nozzle and the mandrel to pass beyond the tapered end of the nozzle and between the inner surface of the hose and the outer surface of the mandrel, thereby "breaking" the hose away from the mandrel and lifting the hose away from the mandrel to greatly facilitate stripping of the hose from the mandrel. The nozzle assembly is driven in a linear direction to push or "strip" the hose from the mandrel.The end of the nozzle remote from the hose is provided with a sliding seal which facilitates movement of the nozzle along the mandrel as the hose is stripped therefrom while preventing the escape of the pressurized air.

Abstract: The invention relates to an electrical connector for a high voltage electrical lead terminated to an electrical contact and a method for making the same wherein the connector includes a silicone rubber receptacle insertably receiving and surrounding the contact to prevent arcing thereof together with a dielectric tube having a section secured within the receptacle and being pre-shrunk to conform in shape to that of the electrical contact. A heat-shrinkable section of the tube projects from the receptacle and is heat-shrinkable to conform sealably around the electrical lead.