Abstract: A method of making an electrically-conductive floor covering presses a polymeric bottom layer into apertures in a top layer having a higher flow viscosity than the bottom layer, the pressure also bonding the layers together. The bottom layer contains from about 3% to about 80% by weight carbon black or graphite for electrical conduction; the top layer contains not more than about 0.5% thereof. The apertures in the top layer are at least 1 mm in diameter and regularly or irregularly spaced from the next adjacent aperture from about 2 mm to about 40 mm, the area of the apertures not exceeding 40% per unit area of the top layer. The dark color of the bottom layer resulting from its carbon black or graphite content therefore need not significantly affect the appearance of the top layer, but provides electrical conductivity through the apertures.

Abstract: A pneumatic tire (10) has a tread portion (11) which comprises a plurality of independent block elements. The block elements (17A,17B and 17C) can vary in size having different circumferential lengths and axial widths. The block elements are arranged in rows (18A,18B, and 18C) extending across the tread and each row comprises block elements having substantially the same circumferential length. The rows preferably contain different numbers of block elements such that a multiple of the circumferential length of the block elements in any row times the number of elements in that row is essentially a constant.

Abstract: A radial tire having a carcass ply (17) with an inside-to-outside turn-up portion (19) around each bead (13). In each bead portion (11) there is included a reinforcing ply 22 having portions (22A,22B) on each axial side of the bead (13). The axially outer portion (22A) adjacent each turn-up portion (19), and optionally the turn-up itself, extends radially outwardly of the bead (13), and the axially inner portion (22B) extends radially outwardly to terminate at a point (S) located on a line (Q--Q) which is substantially perpendicular to the carcass ply (17) and passing through the radially outermost end (R) of axially outer portion (22A), or the radially outermost end (U) of the carcass ply turn-up (19).

Abstract: A packing device includes a series of identical vertically corrugated streaming sheets. Each streaming sheet includes, in succession, in a direction parallel to the crests of the corrugations, at least two regions, namely a region of corrugations having a first amplitude and a region of corrugations having a smaller amplitude, which are interconnected by a transition region. Each streaming sheet has an even number of regions of corrugations in phase opposition with respect to the adjacent region of corrugations and each streaming sheet has, in each transition region and in two longitudinal lateral regions, a series of bosses, having flat heads which project alternately from one side and the other of the streaming sheet in phase with the region of corrugations having the first amplitude which is adjacent and/or in phase opposition with respect to the adjacent region of corrugations of smaller amplitude.

Abstract: A radial tire has a carcass ply (17) with turn-up portions (19) extending around each bead (13). On the side of the carcass ply (17) furthest away from each bead (13) are located two reinforcing plies (21,22). Each reinforcing ply (21,22) has portions (21A,22A, and 21B,22B) disposed on each axial side of the associated bead (13). The first portions (21A,22A) of the reinforcing plies adjacent the carcass ply turn-up portions (19) extend radially outwardly thereof, and the second portions (21B,22B) of the reinforcing plies on the other axial side of the bead extend radially outwardly beyond said first portions (21A,22A).

Abstract: A method for forming channel stops in the sidewalls of a trench isolation structure formed in a semiconductor substrate. In one form, anistrophically etched substrate trenches are conformally covered by doped glass, the doped glass is anisotropically etched to retain vertical, sidewall segments of doped glass, and the substrate is annealed to form shallow diffusions in the trench sidewalls. The depth of the sidewall diffusion is related to differences in the dopant segregation coefficients between the glass and substrate materials.

Abstract: There is provided a tubeless pneumatic tire with an inner liner having puncture sealing characteristics comprising as the inner liner a puncture sealing laminate having an outer halobutyl polymer containing layer and an inner polymer containing layer, the inner layer of the laminate having been reacted with a zinc peroxide compound.

Abstract: A sensor suitable for measuring magnetic field gradients spanning very small regions has a magnetic field-sensitive element (37, 42) with a very accurately defined height and thickness (even into the nanometer range) which is perpendicular to the surface of a substrate (30, 41) so that the substrate surface may be used in aligning the element (37, 42) and is manufactured by, for example, depositing magnetic field-sensitive material (9) integrally on the surface of a substrate (5) and the walls and the bottom of a groove (8) provided therein and by removing the deposited material by means of an ion etching process with an ion beam incident at right angles to the substrate surface so that only the deposited material (10) on the walls remains.

Abstract: A passenger car pneumatic tire excellent in cornering stability, which is characterized in that the following ratio relations are met when the tire is assembled onto a rim with an internal pressure being filled:0.55.ltoreq.hw/h.ltoreq.0.700.75.ltoreq.tw/w.ltoreq.0.950.17.ltoreq.m/l.ltoreq.0.

Abstract: A low cost process for bonding a plurality of integrated circuit die to a variety of die support frames using existing, readily available equipment. Tape automatic bonding (TAB) processes offer a number of new possibilities in the assembly and packaging of integrated circuits. However, the investigation of TAB techniques or the use of TAB techniques on low volume parts is prohibited by the high cost of "bumping" or putting interconnection balls on the chip or the tape leads. The process permits placing balls on the bonding pads of a plurality of die by a wire bonder, cutting off the wire, planarizing the balls, coating the planarized region with a conductive epoxy and then registering and bonding the die to corresponding conductive patterns on die support frames.

Abstract: A method and apparatus is disclosed for producing an ornament for gift wrapping purposes and the like. The ornament has a basic member with a plurality of radially disposed conical elements, and these basic members may be combined to produce spheroidal or hemispheroidal ornaments having a plurality of radial cones or spikes. In the method, a flat circular blank is formed with a plurality of radially disposed leaves. The leaves are wrapped around a conical form and adhesively secured to form one of the basic members. The apparatus includes a winder for wrapping the leaves around the conical form and positioning means for holding the blank and locating each leaf on the form to be wrapped into a conical element by the winder.

Abstract: A pneumatic tire of which the durability of the turnup portions of a carcass layer is greatly improved. The tire consists of left and right bead portions, left and right side wall portions continuing from the bead portions, a tread positioned between the side wall portions, a carcass layer provided between the left and right bead portions so that a cord angle with respect to the circumferential direction the tire is 70.degree.-90.degree., and a belt reinforcement layer provided between the tread and carcass layer, characterized in that the carcass layer is formed by burying 20-60 aromatic polyamide fiber cords of 0.55-0.65 mm in diameter per 5 cm of the carcass layer in an equatorial plane in the tire in rubber coats of which a 100% modulus is 30-70 kg/cm.sup.2.

Abstract: At a location between a single facer machine and a glue machine, a web of corrugated paperboard has the flutes crushed in a narrow zone longitudinally of the web. A bonding agent is applied only to the uncrushed flutes. Preprinted liners are applied to the bonding agent on the uncrushed flutes with the liners being spaced from one another by said narrow zone.

Abstract: A method for producing high resolution etched circuit patterns from a metal clad laminate of a conductive species on a nonconductive substrate is provided. The laminate is etched with an etchant solution for the conductive species to form a circuit pattern. The etched laminate is contacted with an oxidizing agent and aqueous acid to remove redeposited conductive species from the exposed substrate adjacent the circuit pattern. The side walls of the resulting circuit pattern are substantially vertical and free of "halo".

Abstract: A new process for plasma etching silicon oxides in integrated circuit structures. A chemistry comprising both oxygen and nitrogen trifluoride is used, with oxygen the dominant component. This provides excellent selectivity to silicon. This etch chemistry also erodes photoresist rapidly, so that it is typically used in combination with a hard-masking process. One particular application of this invention is in a cantilever-etch-mask contact profiling process.

Abstract: An elongated fluid distributing hose for use in an irrigation system for plants, vegetables, and the like. The hose incorporates a particular arrangement of a main supply channel for gross water movement, and a water distributing network for fine water movement. Water pressure reduction takes place in the water distributing network at the point of the passing of the water from the high pressure main supply channel through a series of first fluid-passing openings or inlet stations through one or more smaller fluid-restricting passages. In certain embodiments, a structure is provided to perform a pressure regulating function in each of the smaller passages. In one embodiment, pressure reduction between an inlet and an outlet is by way of serpentine fluid-restricting path. A novel method and machine are employed to manufacture the various hoses embodying the teachings of the subject invention.

Abstract: In a photoresist lift-off process for depositing metal on a semiconductor substrate, a protective coating of silicon is applied to an etched via hole prior to the metal deposition step. This prevents the formation of contaminant trapping voids and contaminated chemical residues which would otherwise occur at the base of the metal line subsequently deposited in the bottom of the via hole. The protective silicon layer, which has a thickness of from 100 to 300 angstroms, remains intact as a permanent part of the structure.

Abstract: An apparatus for assembling large panels, e.g. solar panels, from smaller, preformed sections comprising a plurality of press tables which are coupled to a carousel structure whereby each table can be located at one work station and then moved through a series of controlled stops to an unloading station. Each press table is comprised of a frame having a smooth surface onto which the preformed sections of the panels are positioned and, a press rack which is lowered to bring supports into contact with the adhesive on the backs of the preformed sections to form the large panel.

Abstract: A first magnetic material film is deposited on a support, a groove is etched in the first magnetic film which is shaped like a figure eight, a double coil is formed and is wound respectively around the two central pole pieces. An insulating material layer is deposited and etched in step form, the step having a side facing the central channel. An magnetic film is deposited on the thus etched step, and the film is etched so as to only leave a wall perpendicular to the plane of the films. This is followed by the deposition of a magnetic film and then a protective layer, the assembly being divided off so as to expose two pole pieces separated by an air gap.

Abstract: A single facer of the type wherein a core paper sheet is corrugated by means of a pair of upper and lower corrugated rolls and has its crest portions applied with paste, and then a liner introduced from a different direction is pasted on the corrugated core sheet while passing between the lower corrugated roll and a pressure roll to form a single-faced corrugated sheet, is improved in that at least one pair of additional upper and lower corrugated rolls having a different shape of corrugation from first mentioned pair of upper and lower corrugated rolls are supported on a rotatable frame jointly with the first pair of upper and lower corrugated rolls, and structure for rotating the rotatable frame is provided.