Abstract: A web strip with penetration stoppers are placed transversely along one or both longitudinal edges. The stoppers are designed to abut the flange surface when the strip has been pressed into the desired depth to inhibit further penetration.

Abstract: Plastic auto part characterized in that a decorative trim, which represents a plastic substrate laminated with metal foil on one side, is ultrasonic-welded to an auto part, whereby the other side, not laminated with metal foil, of said plastic substrate faces the surface of said auto part without injuring the decorative trim, and its manufacturing process.

Abstract: An apertured flexible sheet component for an air cushion vehicle flexible skirt, such as an apertured section of a flexible skirt bag member, comprises reinforced flexible sheet material including a reinforcing fabric having substantial spacings between groups of cords from which the fabric is formed. The reinforcing fabric is coated with elastomeric material and apertures are formed in the elastomeric material within the spacings between the groups of cords in the reinforcing fabric so that no broken cords are caused by formation of the apertures.

Abstract: A trim molding including an integral elongate member of a flexible material formed so as to have a base portion to be attached to a surface, such as the surface of an automobile body at the edge of a vinyl covering, a cover portion for hiding the base portion and the fasteners securing the base portion to the surface, and a hinge portion permitting the cover portion to be folded to a position covering the base portion. The base portion can include an integral snap receiving recess so that a snap means formed in the cover portion can be snapped onto the base portion when the cover portion is folded in to a closed position.

Abstract: Disclosed is a method for delineating zones on the surface of thermoplastic gratings. The method comprises inserting in the grate openings a removable closure member adapted to interlock with the grating and close the opening. The removable closure member is distinguishable from the grating in color and when a plurality of closure members are so inserted in a pattern, they delineate a given zone.

Abstract: An improved vapor-liquid contact grid apparatus which maximizes the generation of small drops and which is inexpensive to manufacture and easy to construct is disclosed. The grid apparatus consists of multiple layered grids, each grid being formed of upright grid members and connectors. The grid members carry vanes, formed from the member itself by a process of slitting and bending, which vanes extend out into the region between the upright grid members, thus restricting vapor passage, providing drip points and increasing the effective surface area for gas-liquid exchange. The grid members and connectors are arranged in an "egg carton" -like fashion to provide a simple, yet sturdy, grid.

Abstract: An expansion joint and a fabric which may be used in connection therewith are disclosed. The expansion joint and fabric are particularly suitable for joining conduit sections through which high temperature, highly corrosive gases are conveyed, such as flue gases in a power plant. The fabric material includes a pair of foil-fabric composites in which a metallic foil is bonded to a high temperature resistant material, such as glass cloth. Between the two foil-fabric composites is a fluid impervious barrier preferably comprising an inner metallic foil of alloy material. The foil-fabric composites are stiffer than the high temperature resistant material alone, and this limits the motion and flexibility of the expansion joint to such an extent that the inner foil is not crumpled and damaged during use and handling. At the same time the stiffening is not so great that the ability of the expansion joint to accommodate relative movement between conduit sections is substantially affected.

Abstract: A die structure for use in a laminated core manufacture wherein a plurality of apertured sheets are provided with projections formed from the portion of the sheet from which the apertures are formed to define an interlocked laminated stack. The first of the sheets is provided with a through aperture with the projection being eliminated so as to define a nonprojecting surface in the first of the sheets of the stack, with the projections of each of the subsequent sheets extending into and being interlocked with the preceding sheets in the aperture thereof. The punching apparatus for providing the apertures and projections is selectively operated to define either the formed aperture and projection structure or a blanked out apertured structure. The blanked out apertured structure defines the first of the sheets of the stack.

Abstract: A laminated pack comprises a plurality of uniform, closely adjacent superposed sheets and a mechanical interconnection for said sheets holding them together which comprises the pinching of a portion of the sheets themselves against one another. The interconnection is effected by slitting the sheets in areas to form teeth on each side of a hole formed through the sheet or along an edge of the sheet and by subsequently deflecting the teeth in a stacked set of sheets so that adjacent ones of the teeth move into recesses vacated by similarly deflected teeth of the next adjacent sheet and fit into the area with a pinching interengagement. The pack is formed by feeding prestamped sheets along a feed path and separating and stacking individual sheets therefrom in a direction perpendicular to the advance direction of the strip and also pinching the sheet so that teeth formations of superposed sheets bear into the next adjacent sheet to hold them together.

Abstract: A ribbon sleeve for boxes, especially gift boxes, comprising a sheet-material blank having an elongated strip portion provided at each end with a pair of lobes. First fold lines are provided at the junction of the lobes with the respective end of the blank. The fold lines intersect one another in a point which is adapted to be placed onto a respective corner of the box. Second fold lines are provided in each lobe spaced from and parallel to the respective first fold lines. This enables the lobes to be bent along the first fold lines to overlie the sides of the box and portions of the lobes to be bent underneath the box along the second fold lines. A slit is provided in one lobe of each pair and a tab on the other lobe of the pair and insertable into the slit to serve as a connecting means for the lobes.

Abstract: Composite sheets comprising expanded graphite, a sheet-like metallic core inserted therein and, if desired, a binder for the expanded graphite. In one embodiment, gaskets are prepared from the composite sheets.

Abstract: A plastic bucket lid is adapted for removable attachment adjacent its periphery to a bucket. The lid defines an annular open depression adjacent its periphery, and, positioned outwardly from the depression, an annular locking slot for receiving and holding the lip of a bucket. In accordance with this invention, radially-positioned reinforcing fins are carried by the lid within the annular, open depression to restrict the flexing of its outer wall. This, in turn, has been found to reduce the tendency of the lid to be knocked off of a bucket upon being dropped or the like. Preferably, an outwardly positioned annular projection is placed in the locking slot which defines an angle of 80.degree. to 100.degree. to the plane of the annular walls defining the locking slot for improved retention of the lid to the bucket.

Abstract: A gasket made of a fibrous and/or porous material is impregnated with a liquid saturating agent consisting essentially of an organic, synthetic and completely polymerizable liquid that does not contain agents which will evaporate during polymerization of the liquid.

Abstract: A filter element for gas or liquid comprises a layer of glass, ceramic, metal, mineral wool or organic fibres containing, wholly within the layer, an apertured sheet, for example of steel or aluminum, the fibres being bound to one another throughout the layer and through the apertures, as well as to the sheet itself, by a synthetic resin such as silicone resin or polyurethane. The filter element is formed by mounting the apertured sheet a selected distance above a filter surface on which the fibres build up while a slurry containing the fibres is drained through the filter surface. When the fibres have built up to a predetermined distance above the sheet, the fibres containing the sheet are removed and the assembly impregnated with a synthetic resin and cured. Two or more grades of slurry mixture may be used in succession to produce a density grading through the thickness of the fibrous layer.

Abstract: An elongated extruded strip adapted to be mechanically secured to a slotted sheet-like substrate is provided by extruding an elongated thermoplastic strip having a body portion which includes a rear face having a rearwardly projecting rail and then notching out longitudinally spaced portions of the rail to provide longitudinally spaced teeth. The strip is pressed against the sheet to force the teeth through the slots and heat is applied to the portions of the teeth which project through the slots to form a head or bead on the teeth and thereby mechanically secure the strip to the substrate. The strip is preferably formed to include at least one side support and/or at least one resilient adhesive tape may be used to allow the strip to deform when pressed against the substrate to force the teeth to project further through the slots to insure a tight securement. The teeth may have an arrowhead when the sheet-like substrate is of uniform thickness.

Abstract: An improved rotatable mass for a flywheel characterized by a plurality of coaxially aligned, contiguous disks mounted on a spin shaft, each disk of the plurality being formed of a plurality of woven fibers disposed in a plane transversely related to an axis of rotation with the fibers of alternate disks being continuous throughout their length, while the midportion of the fibers of the remaining disks of the plurality is removed for defining annular voids concentrically related to the spin shaft.

Abstract: A karate practice board, for subjection to hand and foot strikes, comprises permanent and disposable parts, by which the practice board inexpensively simulates frangibility and permits reassembly. The permanent parts of the board being similar in configuration and each being provided with a concavity in an edge portion thereof. The disposable parts being smaller than the permanent parts and being configured to removably slide into the concavities whereby the permanent parts can be temporarily joined at their edges such that they will appear as a single board. Upon striking the board with a predetermined force, the insert part will be severed to separate the permanent parts. The severed insert part will be removed from the concavity of each permanent part and another insert part will be inserted to render the board reusable. Each insert part having a different strength which will require a different predetermined severing force.

Abstract: An electrical connector in which conductive rubber rods are mounted in a nonconductive substrate. The rods extend above and below the upper and lower surfaces, respectively, of the substrate for electrically interconnecting conductive traces on a pair of electronic components, such as a display panel and logic circuit used in a digital wrist watch. A method for making the connect is disclosed.

Abstract: Foamed structures such as those formed of rigid polyurethane can be easily reinforced by a plurality of layers of reinforcement material spaced relatively uniformly throughout their thickness by coating or covering the layers of reinforcement material with absorbent material such as paper, stacking the layers at the bottom of a mold, adding the liquid resin, and curing the resin after it has had sufficient time to wet the absorbent layers. As the resin on the absorbent layers foams, the layers of reinforcement will be simultaneously lifted and spaced from each other to provide uniform reinforcement without the need for special molds or the labor usually required to position spaced layers of reinforcement.

Abstract: A metal case plastic-face meter box window cover having a metallic frame providing an exposed peripheral edge which is capable of being welded or soldered onto the meter box and having a transparent face of plastic material molded upon a peripheral flange of the metal case, with such peripheral flange forming a thin web of metal capable of conforming to the change of the plastic during its curing stage so as to prevent loss of adhesion therebetween.

Abstract: A pair of paper board panels are joined together by means of a seam structure comprising interlocking portions of the two panels. The first panel has a plurality of spaced partial perforations which define the plurality of flat first tabs each of which is displaced away from one side of the first panel about a hinge line in the first panel. The second panel is provided with a plurality of second tabs along one edge thereof each of which has a relatively narrow neck flaring outwardly into a wider tip portion. The second tabs are inserted through the partial perforations with the free ends of the second tabs being disposed adjacent the hinge lines of the first tabs, and with portions of the second tabs extending beyond the edges of their associated partial perforations to overlie the first panel on the side thereof adjacent the first tabs.

Abstract: Insulation material comprising a pair of generally parallel spaced surface sheets of impervious material sealed together through thermally insulating material at their free edges. The surface sheets are held in spaced relation by a series of transverse pins spaced apart over the area of the surface sheets and the space between the latter is evacuated.