Abstract: Disclosed is a method of making an electro-optical display and the display made by such method having improved optical uniformity provided by the use of one or two pressure plates having raised portions that are dimensionally adapted to press uniformly on the seal enclosing the electro-optical material in a cavity between two plates of the display or uniformly upon the seal and at least one support member disposed in the cavity as a means of providing support and improving parallelism between the plates. The method also includes embodiments of electro-optical displays in which the support members, if used in the display, comprise a plurality of graphically shaped support members that not only provide support and improve parallelism between the plates but which are also able to convey information to a viewer of the display regardless of whether the electro-optical material is in an electrically energized or an electrically unenergized state.

Abstract: Disclosed are liquid crystal displays utilizing an electrically insulative hermetic seal for enclosing the liquid crystalline material between the plates of the display. The seal provides a durable improved barrier to the penetration of vapor into the display by being the crosslinked thermoset product of a composition comprising at least one phenoxy resin and at least one epoxy resin in conjunction with a sufficient amount of crosslinking agent to crosslink the composition sufficiently to provide the seal with improved resistance to vapor penetration.

Abstract: Disclosed is a reflector for use in electro-optical displays utilizing electro-optical materials. The reflector is made from a composition comprising a blend of at least one alkali earth metal salt with a binder such as sodium carboxy methyl cellulose or thermoplastic phenoxy and an amount of solvent sufficient to provide suitable viscosity to permit the reflector to be deposited as a reflector on the display. The reflector composition comprises from about 30% to about 99.9% by weight of the alkali earth metal salt to the weight of binder casted to be adjacent to and directly adhered to the side of the back plate facing away from the electro-optical material and is able to provide a wide reflecting angle in conjunction with maintaining a high contrast ratio between the electrically energized state and the electrically un-energized state of the electro-optical material contained within the display.

Abstract: Disclosed is a new family of Liquid Crystalline Materials for use in optical display devices having the general formula: ##STR1## The members of the family of materials are characterized by having a broad nematic operating range in conjunction with low viscosity and exhibit fast response times to a controlled electrical field in the lower temperature regions of their nematic operating range and may be mixed with other members of the family or with other liquid crystalline materials and/or homologous non-liquid crystalline materials.

Abstract: A heat transfer apparatus (13) adapted to releasably secure an elongate heating or cooling means to a pipe. Apparatus (13) has a flexible base member (3) that adapts to the radius of curvature of the outer circumference of the pipe and preferrably has at least one protuberance (8) in its wall. One or two resilient side walls (4) extend over the side of base member (3) that faces away from the pipe to provide a longitudinal cavity for containing the heating or cooling means. An entrance-way (6) is provided for inserting or removing the heating source into or from the cavity. Side walls (4) are shaped such that they press uniformly against the heating or cooling means and urge said means against base member (3). Means (11) are provided for securing apparatus (13) to the pipe so the heating or cooling means can be removed from or inserted into the cavity without having to release apparatus (13) from the pipe.

Abstract: Disclosed is a flame retardant thermoplastic elastomeric composition that in the form of an insulation about an electrical conductor is able to meet or exceed the requirements of UL VW-1 Vertical Flame Test and in the form of a jacket about an electrical cable is able to meet or exceed the requirements of IEEE-383 Cable Tray Flame Test while having a limiting oxygen index of only 24 to 27 percent. The composition has an elastomeric component of the type comprising about 25 to about 75 parts by weight of a crystalline olefin resin and about 75 to about 25 parts by weight of a vulcanized monoolefin copolymer rubber comprising a polymer of ethylene or propylene and one other alpha olefin of the formula CH.sub.2 .dbd.CHR where R is an alkyl of 1-12 carbon atoms. The composition includes a non-elastomeric component comprising blending about 20 to about 40 parts by weight of a flame retardant compound and about 5 to about 20 parts by weight of antimony oxide and about 0.

Abstract: Disclosed are heat recoverable connectors for use as a protective covering about a plurality of joined articles such as wire splices or tubing junctures. The connectors are open-ended and feature at least one internal wall extending for at least a portion of the distance along the length of the connector to provide a plurality of open-ended channels within the connector for respectively containing one or more of the plurality of joined articles so as to insure their separation during the process of shrinking the connector by heat.

Abstract: A heat transfer apparatus (13) adapted to releasably secure an elongate heating or cooling means to a pipe. Apparatus (13) has a flexible base member (3) that adapts to the radius of curvature of the outer circumference of the pipe and preferrably has at least one protuberance (8) in its wall. One or two resilient side walls (4) extend over the side of base member (3) that faces away from the pipe to provide a longitudinal cavity for containing the heating or cooling means. An entrance-way (6) is provided for inserting or removing the heating source into or from the cavity. Side walls (4) are shaped such that they press uniformly against the heating or cooling means and urge said means against base member (3). Means (11) are provided for securing apparatus (13) to the pipe so the heating or cooling means can be removed from or inserted into the cavity without having to release apparatus (13) from the pipe.

Abstract: An elongate flexible package (10) adapted to contain and either enhance or contribute to the control of the heating efficiency of an elongate heating element contained therein and having sufficient flexibility to conform to the item to be heated to which it is secured. Package 10 is provided with a first layer (1) made from a flexible heat conductive or heat insulative material and a second layer (2) made from a heat insulative material that is secured along the length of package 10 to the side of first layer (1) that faces away from the item to be heated to which package (10) is secured. A third protective layer (3) is disposed over second layer (2) and a cavity (4) enclosed by a portion to the walls of layers (1), (2) and (3) extends along the length of package (10) having a cross-sectional configuration adapted to contain and permit the heating element to be axially inserted into or removed from package (10) without having to remove package (10 ) from the item to which it is secured.

Abstract: An improved flexible reinforced hose (14) for use in the conveyance of fluids under pressure. The hose has a core tube (1) and an outer protective sheath (7). Disposed between the core tube and the sheath is a plurality of layers of reinforcement of which at least two of the layers comprise synthetic fibers having a tenacity of from about 12 to about 25 grams per denier and an elongation at break of from about 2% to about 8%. The hose is provided with improved resistance to pressure pulsation and flexing fatigue as a result of the said synthetic fiber layers being positioned in prescribed helically wound and/or braided combinations in conjunction with a prescribed twisted relationship that features the fibers closest to the core tube as a plurality of the same or different deniers of the fiber in the form of a plurality of cords having a twist of more than about 1.5 turns per inch and the fibers outwardly adjacent thereto as a plurality of the same or different deniers of the fiber having a twist of about 1.

Abstract: A compact one-piece shrinkable sleeve of minimal outside diameter made from either a resilient material or a heat shrinkable material having elastic memory and adapted to be secured to the end of an electrical cable and/or tubing bundle having one or more electrical conductors and/or tubes extending therefrom to provide a barrier to the flow of gas or vapors therethrough. The sleeve contains a cavity at one end thereof that when the sleeve is in an expanded state is adapted to receive the end of the bundle. The sleeve contains one or more internal channels at the opposite end thereof that are separated from each other by walls that are directly or indirectly integrally related to the wall of the remainder of the sleeve and are adapted to permit the one or more conductors and/or tubes to extend therethrough from the bundle end in the cavity.

Abstract: Tubing and electrical cable utilizing shields made from a flexible metal tape that has a coating of a copolymer of ethylene with a monomer having a reactive carboxyl group bonded to at least one of its sides and to which coating is bonded an adhesive that is adapted to bond the coating to flexible or semi-rigid non-olefinic polymeric materials so as to provide such tubing and electrical cable with improved flexibility and resistance to wrinkling or bending.

Abstract: A substantially tubular shaped insert (1) adapted to fit coaxially about the end of a hose and to be contracted against the hose by the shell of a coupling to provide an improved hose and coupling assembly for the conveyance of fluids under pressure. The insert has a separation space (2) in its wall that extends longitudinally along the entire length thereof and one or more longitudinally extending primary elongate openings (4) through its wall that are disposed in a substantial uniform array about its circumference. The longitudinal axis of space (2) and openings (4) are skewed from 0.degree. to about 45.degree. from the inserts central axis and the areas provided by space (2) and openings (4) are such that, upon contraction of the insert against the hose, portions of the wall of the hose are caused to extend into space (2) and openings (4) to provide an improved circumferentially uniform longitudinally extending engagement between the coupling and the hose.

Abstract: An elongate flexible package (10) adapted to contain and either enhance or contribute to the control of the heating efficiency of an elongate heating element contained therein and having sufficient flexibility to conform to the item to be heated to which it is secured. Package 10 is provided with a first layer (1) made from a flexible heat conductive or heat insulative material and a second layer (2) made from a heat insulative material that is secured along the length of package 10 to the side of first layer (1) that faces away from the item to be heated to which package (10) is secured. A third protective layer (3) is disposed over second layer (2) and a cavity (4) enclosed by a portion to the walls of layers (1), (2) and (3) extends along the length of package (10) having a cross-sectional configuration adapted to contain and permit the heating element to be axially inserted into or removed from package (10) without having to remove package (10 ) from the item to which it is secured.

Abstract: A composite reinforced hose for conveying paint under pressure is provided with a core tube simultaneously coextruded from two or more thermoplastic synthetic polymers which are in intimate contact with each other. The inner layer of the core tube is nylon or other chemical resistant polymer which is substantially non-conductive and the outer layer is electrically conductive. The conductive polymer layer serves as a ground for static electricity.

Abstract: An improved elongate deformable tube for use in the conveyance of fluids and/or fluid transmission signals under pressure having a bore therethrough enclosed by a composite annular wall comprising a seamless, as welded, or welded and drawn inner tubular shaped layer made from a metallic material and an outer tubular shaped layer made from a polymeric material. The walls of both the inner and outer layers are substantially uniform in radial thickness around their circumferences with the radial wall thickness of the outer polymeric layer being 50% or more than the total radial thickness of the composite wall of the tube. The outer layer is preferably formed about the inner layer by means of an extrusion process.

Abstract: A fibrous reinforced flexible hose for conveying fluids such as paint under pressure is provided with a composite core tube preferably simultaneously co-extruded from two or more synthetic polymers which are in intimate contact with each other. The inner layer of the composite core tube is nylon or other chemical resistant polymer which may or may not be cross-linked and the outer layer is a cross-linked electrically semi-conductive synthetic polymer layer which serves as a ground for static electricity. In the process of making the hose, the semi-conductive layer is preferably cross-linked by irradiation as a means of improving its higher temperature performance capabilities and to minimize changes in the electrical resistance of the semi-conductive layer that might arise from dynamic use of the hose.

Abstract: Elongate, deformable, composite tubing for use in maintaining or controlling the temperature of a fluid conveyed therethrough comprising one or more tubular fluid conveyance lines or one or more tubular fluid conveyance lines disposed in heat transfer relationship with one or more heating lines and having disposed in encompassing relationship thereabout an improved flexible thermal barrier. The improved thermal barrier comprises one or more flexible, flame resistant, low chlorine bearing, sheet-like layers of low bulk fibrous glass elements having a density of less than about 20 lb./cu. ft. providing improved thermal insulation characteristics in combination with improved flexibility and reduced outer diameter.

Abstract: A rotatable coupling member for attachment to an end or between the ends of hose or tubing to be used in the conveyance of a fluid under pressure. The coupling member comprises a first body member having means disposed at one end thereof for attaching the first body member to a source of fluid and a substantially tubular shaped insert extending away from a second end thereof into an axially aligned receiving bore disposed at a first end of a second body member that provides a fluid interconnecting relationship to a second end of the second body member having means disposed thereat for attachment to a source of fluid. An annular retainment groove having a cross-sectional shape capable of being altered as a result of an axial compressive force being applied to the insert is disposed in the first body member insert outer wall.