Abstract: DIP tube handling apparatus including an input hopper 62 suitable for containing a quantity of randomly oriented DIP container tubes, agitating, singulating and metering means 34 at the bottom of the hopper 12 for causing one tube at a time to leave the hopper 12 under the influence of gravity, a pair of walking beams 26, 28 for moving the singulated DIP tube to an orientation station, an orientation device 30 for orienting the tubes so that the tubes and DIPs contained therein are positioned top side up, a tube inclining means 110 for causing the tube to be inclined so that DIPs may slide therefrom under the influence of gravity, either into the tube from a supply chute or out of the tube into a discharge chute, and an output hopper 14 for receiving tubes that have been loaded or unloaded.

Abstract: Significant, life-saving protection from airborne, radioactive (fallout) particles due to nuclear explosions, nuclear reactor accidents, and other releases of radioactive particulate is provided by a double-wall tent structure quickly erectable over a central bench or hole. The tent structure includes tightly woven, rip-resistant fabric panels supported by tensile rods or wands, a tub floor extending into and lining a central trench or hole, and an exterior, light-reflecting, metalized, semi-transparent disposable membrane. The bottom circumferential edge of the outer membrane extends into a shallow trench or ditch, excavated around the perimeter of the inner tent structure. Dust particles settling onto the smooth exterior surface of the membrane slide off and are captured in the shallow ditch, thus minimizing direct or indirect radiation into the central trench or hole and its occupants.

Abstract: A process for conducting fast, rapid two site, two step immunoradiometric tests for CK-MB.In a first series of steps, a mobile particulate solid-phase having an isoenzyme selected from the group of CK-BB and CK-MM immobilying bound on its surface is suspended in a matrix of pooled match human serum. The mixture is incubated, diluted, and centrifuged.In a second series of steps, the resulting solid is incubated with a radio labeled antibody that is specific to the isoenzyme not used in the first series of steps. Counting the radioactivity gives the amount of CK-MB in the patients serum.

Abstract: A plurality of probes for contacting the pads of an integrated circuit are cantilevered within the aperture of a ceramic ring. The probes are fixed to the ring with an adhesive and a second ceramic ring is positioned on them to support them against contact forces. The probes are soldered to conductive tracks on the first ring for connection to test apparatus, providing a very rigid and dimensionally accurate and stable probe arrangement. The device can be constructed with the probes in contact with a sample integrated circuit, in a quick and simple process.

Abstract: An improved radioimmunoassay test method and device based upon competitive binding test methods wherein immunoreactions are halted at a time when the rate of change of the quantity of bound radiolabeled analyte of interest is inversely proportional to the concentration of analyte of interest in an unknown sera. Based thereon, a test device is created having a single calibration curve 36 which is accurate throughout the shelf life of the device.

Abstract: An automatic semiconductor wafer inspection system including a wafer inspector, a system computer that performs movement and function control and data storage functions and a high speed image computer. Patterned wafers selected for inspection are automatically transported from cassette storage to a vacuum chuck located on the X-Y stage and positioned in a macro inspection station. The wafer is aligned and the surface illumination is changed to test for macro defects under different lighting conditions and levels of magnification. The reflected light is applied to a camera where the optical image is converted to an electrical representation thereof, stored, and then processed by the high speed image computer. After a wafer has been positioned and inspected in the macro inspection station at low magnification, it is moved by a macro-micro transport arm to the micro inspection station and a unique image previously found in the low power image is found again and used for initial alignment.

Abstract: The programmable logic array device basically comprises a programmable AND array (FIGS. 5, 11) having a plurality of memory cells (30, 31) arranged in addressable rows (40-45) and columns (32-38) and which can be individually programmed to contain logic data; an input circuit (FIG. 9) for receiving an input signal and for developing a buffered signal corresponding thereto; a first row driver (FIG. 10) responsive to the buffered signal and operative to interrogate a particular row of the memory cells and to cause the AND array to output signals corresponding to the data contained therein; first sensing circuitry (FIG. 12) for sensing the signals output by the AND array and for developing corresponding data signals which are the logical OR of signals output by the AND array; first output terminal circuitry; and first switching circuitry (FIG. 14) responsive to a control signal and operative to couple the data signal either into the storage circuitry or to the output terminal circuitry (FIG. 16).

Abstract: An electrically programmable, eraseable and reprogrammable, monolithic integrated circuit logic array device is disclosed. The device includes a plurality of three types of logic array macrocells, each including an AND array matrix of EPROM transistors configured to form a plurality of "product terms" which are fed into another matrix comprised of "OR" gates, the outputs of which form sum-of-products expressions of the inputs to the AND arrays. Also contained in the macrocells are simple EPROM transistors which, when combined with other appropriate circuitry, form control elements, a plurality of storage registers (D flip-flops), feedback drivers, input drivers and output drivers, all integrated on the same substrate. The input drivers and feedback drivers provide input signals to the AND arrays and the outputs from the D flip-flops can be directed to either the feedback drivers or the output drivers.

Abstract: A device for measuring the weight and torque on bit while drilling includes an outer bored cylindrical sleeve coaxially connectable into a drill string above a drill bit and an inner bored cylindrical sleeve welded coaxially within the outer sleeve. Strain gages located on the exterior surface of a necked-down section of the inner sleeve are isolated in an ambient pressure environment within annulus between the sleeves. Temperature compensation is accomplished by resistance temperature detectors sensing temperatures at the exterior surfaces of the respective sleeves.

Abstract: A machine for continuously packaging/bagging articles within a thermoplastic film, includes a microprocessor cued by magnetic encoder wheels for coordinating intermittent advancement of a film web by a continuous side sealing mechanism with operation of a bar sealing mechanism across the film web. The machine is tiltable between horizontal and vertical positions on a pivoting base for allowing gravity infeed of the articles being packaged/bagged.

Abstract: A mechanical door chime powered by movement of a pivoting door in a frame includes means for mechanically storing energy, means for producing sound operatively coupled to the output of the energy storing means, a rigid inclined surface coupled to the door or its frame, a base mounted proximate the pivoting junction between the door and its frame opposite the surface with a rigid plunger having a rotating contact arbored at one end, where the plunger is restrained to slide rectilinearly in said base, the rotating contact at it's end abutting against the rigid surface coupled to the door as the door pivots open causing linear movem ent of the plunger relative to the base as the door is opened, and means coupling the plunger to the energy storing means for energizing the energy storing means responsive to the liner movement of the plunger.

Abstract: A closure cap for a container of granular solid contents. The cap has a body and a coverflap. The body has pouring apertures, hinge post receivers and a relief. The coverflap has hinge posts that fit into the hinge post receivers, sealing protrusions that can seal the pouring apertures and a depressable end. The depressable end can be depressed into the relief on the body, allowing lever action. The sealing protrusions and the pouring apertures can be disengaged by application of pressure to the depressable end, and the contents can then be removed from the container.

Abstract: The method of fabricating a baseball glove from a single sheet of paperboard, and the resulting baseball glove.

Abstract: Head positioning apparatus for a magnetic disk drive unit (10) including a disk pack portion (12) and a head-positioning portion (14), the latter employing a linear magnetic induction motor (22) for accurately positioning an associated head (20) relative to the disk pack portion (12) while permitting efficient assembly of the head-positioning portion (14) due to the arrangement of slide bearing shafts (30, 32) on the outside of the motor (22) and the use of an adjustable lever arm (38) and a bracket (48) at respective ends of the slide bearing shafts (30, 32). Fluid bearings are used throughout, with the disk pack portion (12) employing a fluid thrust bearing (88) in a means for coupling a plurality of disks (80) to an associated drive motor (86) in order to isolate the disks (80) from axial fluctuations of the motor armature (90) along its axis of rotation and prevent damage to the disks.

Abstract: An electronic mail terminal 10 that includes a keyboard 12, multi-character display 14, thermal printer 22, tape drive 118, and communication and control circuitry. The tape drive and printer mount to molded-in features of a base housing 20. A printed circuit board 28 containing the communication and control circuitry and the display is mounted to molded-in features of the base housing. The keyboard plugs into the printed circuit board from above and is supported at the sides by stand-offs in the base housing. A cover housing 88 mates with molded-in features of the base housing. The tape drive mechanism includes cassette guides 98 and 376 that are molded into the base and cover housings and a spring loaded motor mount that automatically compensates for wear and positioning tolerances. A printer carriage motor 184 drives a toothed belt 182 to position a carriage 138 which holds a thermal print head 140.

Abstract: A character base input data stream is encoded in compressed form by using a histogram of a sample of the data stream to determine the frequency of appearance of characters in the stream. A code for a character M+1 is generated in an encoder (112) to be of a length which is an inverse function of the frequency of appearance of character M+1 in the preceding M characters in the sample. Decoding can be achieved by forming a comparable sample window in a decoder (118) to which is applied an estimated index of the incoming character being decoded.