Abstract: A filter including a fibrous filter medium mat, having an upstream dirty fluid inlet and a downstream clean fluid outlet, with a majority of the filter medium fibers oriented in a substantially unrestrained, aligned direction so as to be aligned with the direction of fluid stream flow, the fibrous filter medium mat combinable in a preselected manner with filter media of randomly dispersed fibers.

Abstract: An improved filter media that is stable in both the lengthwise and widthwise directions and that does not stretch or similarly distort during pressure stops and starts. The filter media is formed from a circular knitted felt fabric having a napped face and a knitted back.

Abstract: The filter for an inflator of the present invention includes a cylindrical compressed mesh unit, which is multi-folded in its substantially entire length, and the multi-folded mesh unit is provided by folding a cylindrical wire mesh knitted from a single metal wire by a predetermined length from its one or both end portions in the longitudinal direction, so as to be overlaid on the outer peripheral surface of the cylindrical wire mesh, and such a folded overlaying is repeated a plurality of times. Then, the cylindrical mesh unit thus constituted is compressed in its longitudinal direction. The above-mentioned compressed cylindrical mesh unit should have a cavity ratio of 70 to 80% in terms of cavity ratio C defined by the equation indicated below:C=(.rho.o-.rho.)/.rho.o.times.100(%).

Abstract: An oil mist separating element composed of a web of material formed of threads, yarns, wires or a combination thereof, the material of the oil mist separating element being formed at least partially, or entirely, of a mesh, raschel, knit or woven fabric.

Abstract: The textile spacer material is a material for replacing foamed substances; it consists of two knitted or woven covering layers that are connected by a pile thread structure. The pile thread structure produces the compressibility known from flexible foams and the large air fraction. The elasticity can be determined by the length and density of the pile threads and the material used. When recyclable materials are used, an environmentally compatible foam substitute can be obtained. Moreover, the textile spacer material can also assume chemical or physical properties through the use of treated starting material or a treatment during or after production and thus be used as a filter or catalyst material, for example.

Abstract: Method and product made for preventing loose tinkles in a wire mesh product. Opposite ends of a sock of knitted wire mesh are subjected to a single-ply bonding operation such as electric resistance welding, thereby bonding the tinkles to the mesh. The sock is then compressed to produce a foraminous product suitable for use as a slag filter in automotive airbag assemblies.

Abstract: An efficient, highly porous fabric filter medium capable of filtering air at temperatures up to about 500.degree. F. (260.degree. C.) has been provided. The filter medium is made from a polyimide fiber and is especially well suited for use in combination with a rotating drum filtering machine, thereby providing high temperature air filtration at a lower initial equipment and installation cost, and with subsequent lower operating and maintenance costs than have been previously possible.

Abstract: A dust-proof fabric having an excellent dust-collecting efficiency and dust-preventing property including a plurality of filament yarns having a thickness of 20 to 400 denier and consisting of a plurality of individual filaments having a denier of 3.5 or less. The fabric has a number of pores formed therein and exhibits an air permeability of 0.3 to 10 ml/cm.sup.2 /sec. In the fabric, the proportion of the integrated volume of pores having a size of 43 .mu.m or more to the entire integrated volume of all the pores in the fabric is 40% or less.

Abstract: Filtering material and filtration apparatus employing the filtering material. The filtering material includes a perforated laminate of a plastic sheeting and a metalized coating adhesively attached to a fabric backing. A filter bag formed from this filtering material is mounted within a support structure so that the metalized coating is electrically connected to the support structure.

Abstract: An air bleeder valve for a waterbed mattress comprises a hollow tubular body sized to fit snugly into the fill spout of a waterbed mattress, a flap valve at one end of the body, and a porous, non-water absorbing water barrier in the tubular body for preventing water from splashing out of the mattress when bleeding air from the mattress.

Abstract: A fabric filter bag, a method of making such a bag, and apparatus using such bags, in which the bag is a tube of yarn knit into stitches defining a ground and stitches defining terry loop pile extending from the ground. In accordance with the present invention, such a fabric filter bag, method of making a bag, and apparatus using a bag is improved by the inclusion of a conductive strand for conducting electrostatic charges otherwise accumulating on the fabric filter bag away from the bag so as to suppress accumulation or build-up of such charges.

Abstract: An improved method for removing particles entrained in air, particularly moisture particles which may contain salt or other contaminating matter. The improved method is particularly useful in connection with marine applications for removing moisture particles from air being introduced to a gas turbine on a marine vehicle. The improved method includes the steps of passing the air at a velocity greater than 20 ft. per second through an inertia separating device for inertially removing at least a portion of the larger sized particles in the air to provide partially processed air, and then passing the partially processed air at a velocity which is greater than a predetermined velocity through an impact filtering pad for removing particles entrained in partially processed air. The impact filtering pad comprises at least one layer of a plurality of fibers, each of the fibers having a diameter greater than 0.001 inches and less than 0.

Abstract: An internal loading cylindrical air filter apparatus having a circular tubular knit pile fabric filter element extending unsupported between end plates to provide an essentially full length unobstructed filter area, and having a rotating internal suction cleaning nozzle therefor. The tubular filter element is supported at its entry end by a detachable angle ring having a cylindrical ring flange extending through an opening in the entry end plate of the apparatus to permit endwise assembly and disassembly of the fabric filter element into the apparatus. Annular or helical strands may extend in circumferential engagement with the filter element for restraining it from ballooning out of effective cleaning distance with respect to the rotating suction nozzle under heavy filtering conditions, and a crank may be provided for adjusting the extending length of a helically extending restraining strand for controlling the degree of restaint imposed on the filter element.

Abstract: A filter, and apparatus and methods using the filter, in the form of a knitted fabric having particular characteristics and effective for separating materials from flowing fluid streams.

Abstract: This invention is concerned with a removable filter to prevent the buildup of Creosote in chimneys which become vulnerable to fires.A hollow enclosure means that is adapted to connect between the chimney and the fire source has within it a support for mounting a filter. The filter is made of a special metal, is knitted with small openings therein permitting the flow of smoke but at the same time to reduce the particles into a minute white ash. The filter acts as a continuous burn reactor. A door is provided whereby the filter can be easily removed from the hollow enclosure and cleaned so that it can be used for an indefinite period without replacement.