Abstract: A pleated filter cartridge for removing particles or dust from a gas stream is described. The cartridge is made of a perforated support tube, a pleated filter medium around said tube, and end caps into which the ends of the filter medium, and the tube are sealed, wherein the pleated filter medium has less than seven pleats per inch.

Abstract: A sensor for measuring concentrate of solute in an aqueous solution in which a humidity sensor is enclosed and sealed within a porous fluorine polymer film that is liquid water impermeable but water vapor permeable. The sensor operates by measuring water vapor pressure in the gaseous phase inside the sealed film after the inside and outside have equilibrated with respect to water outside and inside.

Abstract: A coaxial cable side tap assembly of a coaxial cable with pins separately attached to the cable center conductor and braided sheath for connecting to a branch cable or an integrated circuit or transducer microchip and processes for manufacture thereof.

Abstract: A leak detection assembly that employs a layer of pliable conductive construction between a fluid conduit or tube and a tape containing signal carrying elements disposed along the length of the tape. The signal carrying element can be a series of parallel electrical conductors disposed longitudinally.

Abstract: A high-density coaxial interconnect system for connecting an array of closely packed coaxial cable connectors to an electrical signal transmission system while maintaining a ground-shielded signal path through the interconnect system components from coaxial cable to the board.

Abstract: An insulating material formed from a network of hollow gas-filled microspheres embedded in a cured three-dimensional cross-linked polymer network of copolymerized unsaturated fluorinated monomers and acrylic monomers reacted in a fluorinated organic solvent.

Abstract: A low-torque microwave cable in which interior metal layers are coated with graphite particles and a process for coating the interior layers with graphite while flexing the cable to reduce stiffness by two-thirds.

Abstract: A stripped reinforced electric signal cable and processes for its manufacture and termination by use of an easily-removable hardenable reinforcing material and a slotted supporting tray which allows maintenance of conductor alignment and manipulation during termination of the cable with removal of the reinforcing material during the termination process in order to facilitate completion of the termination.

Abstract: A platinum or platinum-alloy plated porous fluoropolymer membrane where the plated metal adheres to the membrane through a coating of a cation-exchange material on the membrane.

Abstract: A laminated composite material containing sorbent particles which are protected from contact by liquids. The materials can be used in devices to sorb gases and vapors and are suitable for use in chemical protective clothing.

Abstract: A metallized porous fluorinated polymer in which at least the inside surfaces are coated with a hydrophilic fluorinated polymer and the surface of the hydrophilic polymer coated with a metal film and a process for its manufacture.

Abstract: An expanded polytetrafluoroethylene-buffered, polyester insulated, braided sheath strengthened, fire retardant jacketed optical fiber ribbon cable having precisely spaced optical fibers and a process for its manufacture.

Abstract: A flexible coiled optical fiber cable having an expanded PTFE buffer layer and a high Durometer D hardness heat-settable jacket to provide a cable useful in high-flex environments.

Abstract: A leak detection cable for selectively sensing liquid organic chemicals is not affected by liquid water or water vapor. The cable includes a first electrical conductor and a second electrical conductor disposed in a coaxial or twin lead configuration. In the coaxial configuration, a porous insulation layer is disposed between the conductors, and a vapor-proof insulation layer surrounds the conductors. In the twin lead configuration, the conductors are encapsulated in a porous insulation layer which is surrounded by a vapor-proof insulation layer. The vapor-proof insulation allows passage of liquid organic chemicals while excluding water vapors and liquid water. The vapor-proof insulation includes a microporous insulation such as expanded, microporous polytetrafluoroethylene (ePTFE) which has been impregnated with a wax which is soluble in the liquid organic chemicals being detected.

Abstract: A gas-venting liquid non-leaking expanded polytetrafluoroethylene seal overlapping the periphery of an opening in a sheet substrate forming a container for strong electrolyte solutions.

Abstract: An installation for filtering air comprises a plurality of cells in parallel and each including an inlet, at least one filter, and an outlet, the inlets being connected to an inlet manifold, and means being provided for causing the gas to flow through said cells. The installation further comprises: a first shutter in each inlet; and dust-removal manifold connected to the bottom of each cell via a dust-removal passage in which a second shutter is provided; and means for establishing a backflow of gas through each cell. For filtering, the first shutter is open and the second shutter is closed. For unclogging the first shutter is closed and the second shutter is open, and the backflow means unclog particles and remove them.

Abstract: A process for applying deodorant particles to a membrane used for clothing in which the particles are applied from a liquid coating material that penetrates into the pores of the membrane, thus resulting in a higher concentration of particles in the surface coating than in the liquid coating material.

Abstract: A coaxial cable side tap assembly of a coaxial cable with pins separately attached to the cable center conductor and braided sheath for connecting to a branch cable and processes for manufacture thereof.

Abstract: A non-blocking waterproof seam tape for covering sewn seams of garments is taught. The seam tape is comprised of an expanded porous polytetrafluoroethylene layer in which one surface has been densified, a cured or partially cured polyurethane adhesive layer, and a thermoplastic hot melt adhesive layer. The densified surface of the expanded porous polytetrafluoroethylene layer prevents the entry of the thermoplastic adhesive through cold creep into the expanded porous polytetrafluoroethylene layer while the same tape is stored in roll form.

Abstract: In order to protect a waterproof garment from the ingress of water via water bridges formed in the area of its closure 15, the inner surfaces of an outer flap 29 and an intermediate flap 41 and the two surfaces of connecting inner face laminates 61b, 63b extending between an outer flap seam 31 and one side of the closure 15 or an intermediate flap seam 43 and the other side of the closure 15 are each formed by a monofil knit and furthermore waterproof seam-sealing tapes 79a, 71b, 73a, 73b are applied to the angles between each garment part 11a, 11b and the connecting inner face laminates 61b, 63b on the one hand and between the flap 29 or the intermediate flap 41 and the connecting inner face laminates 61b, 63b.