Abstract: A device for measuring dew point or humidity comprises a single resonator and at least one temperature-regulating element arranged to control the temperature of the resonator by heating and/or cooling. Frequency measuring circuitry is arranged to generate signals indicative of measured frequencies of the resonator. At least one controller or processor receives the signals and determines the temperature of the resonator at which condensation (e.g., dew, frost, or condensed vapor) appears on the resonator or evaporates from the resonator according to the signals.

Abstract: An evaporative cooling pack formed from first and second corrugated media sheets is provided. The evaporative cooling pack cools a flow of air using a cooling fluid. The first and second corrugated media sheets have flutes that extend at different angles relative to a reference line and at such relative angles and have flute pitches that inhibit nesting of the adjacent sheets.

Abstract: A spin tube assembly for an engine air cleaner is provided. The spin tube assembly includes a housing, a spin tube panel, a plurality of spin tubes and at least one constrictor. The plurality of spin tubes are supported on the spin tube panel in parallel relation to one another. Each spin tube of the plurality of spin tubes includes a helical element causing air entering the spin tube to rotate such that particles within the air are moved by centrifugal action outwardly against a wall of the spin tube. At least one spin tube of the plurality of spin tubes has a constrictor upstream from the helical element thereof. The constrictor causes a localized restriction of air entering the at least one spin tube compared to the spin tubes without constrictors. Methods of use and configuration are also provided.

Abstract: In embodiments, the present invention provides a plurality of fine fiber strands made from a first polymer and a second polymer where the second polymer has a higher molecular weight than the first polymer. In preferred embodiments, the fine fiber strands have an average diameter of less than 2 micron, and the fine fiber strands have a length of at least 1 millimeter.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers for the production of clothing items and footwear. Also described herein is a microfiber and/or nanofiber coating system having a support that holds an object to be coated by fibers during the coating process. The support may move the object with respect to the fibers, such that at least a portion of each of the exterior surfaces of the object are coated by the fibers formed by the microfiber and/or nanofiber coating system.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Systems and methods of heating the fiber producing device, before and during use, are also described herein.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, that include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Fiber producing devices with features that enhance fiber production and adaptability to different types of fiber are described.

Abstract: In embodiments, the present invention provides a plurality of fine fiber strands made from a first polymer and a second polymer where the second polymer has a higher molecular weight than the first polymer. In preferred embodiments, the fine fiber strands have an average diameter of less than 2 micron, and the fine fiber strands have a length of at least 1 millimeter.

Abstract: A material comprising unique nanofiber layers, and more particularly, this invention relates to a method for creating a material that is made from multiple unique nanofiber layers that can be utilized as filter media among other applications. The nanofiber layers have a plurality of fine fibers with an average diameter of less than 1 micron. In embodiments, the fine fibers are formed from a polymer. The material can be created according to a method in which the fine fiber strands are formed from a polymer melt or a polymer solution. The fine fibers can then be layered on top of one another to form materials such as filter media.

Abstract: A material comprising a fine fiber pulp is provided. The fine fiber pulp has a plurality of fine fibers have an average diameter of less than 1 micron and an average length of less than 1 millimeter. In embodiments, the fine fibers formed of a polymer. The material can be created according to a method in which the fine fiber strands are formed from a polymer melt or a polymer solution, the fine fiber strands are cooled to a temperature of less than ?25° C. to increase brittleness of the fine fibers, and the fine fiber strands are granulated into the fine fiber pulp.

Abstract: A functionalized fine fiber is provided. In an embodiment, the functionalized fine fiber is usable in chromatography. The functionalized fine fiber includes a matrix of fine fiber. The fine fibers preferably have an average diameter of less than 2 micron, and each fine fiber preferably has a length of at least 1 millimeter. The fine fibers carry and immobilize functional molecules.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Systems and methods of heating the fiber producing device, before and during use, are also described herein.

Abstract: Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, that include additives that modify one or more properties of the produced fibers. The methods discussed herein employ centrifugal forces to transform material into fibers. Apparatuses that may be used to create fibers are also described. Fiber producing devices with features that enhance fiber production and adaptability to different types of fiber are described.

Abstract: In a photographic film having a substantially transparent magnetic layer, and a sequence of longitudinally spaced image frames, the improvement comprising:at least one longitudinal magnetic track in said magnetic layer located on a side of each image frame, said track having a fixed length L; anda pair of data blocks recorded on said track, each said data block having a length which is less than L/2 and being recorded respectively at the beginning and end of said track with an unrecorded space between said data blocks.

Abstract: A single use camera is preloaded with a roll of magnetically coated film with defined image frames. The camera has an exposure system for selectively exposing an image frame of the film in one of a plurality of image formats. The camera also includes a manually actuated mechanism coupled to a mounted permanent magnet. The magnet is movable to record a magnetic mark on the magnetically coated film at a predetermined location relative to an exposed image frame. The location of the mark is indicative of the image format of the exposed image frame.

Abstract: In a camera having an exposure gate and a transport for transporting film past the exposure gate, the film having a series of perforations along at least one edge of the film, wherein the number of the perforations are an integer per exposure frame, the film having a substantially transparent magnetic layer at least in the region of the perforations, a mid-roll change apparatus. The mid-roll change apparatus includes a source of a steady-state magnetic field located downstream of the exposure gate and adjacent to the series of perforations for magnetizing the magnetic layer between the perforations as film is transported past the source; a magnetic field sensor located upstream of the exposure gate and adjacent to the series of perforations for sensing fringing magnetic fields emanating from perforation edges, the area between which have been magnetized; and a perforation sensor located to sense the series of perforations of the film.

Abstract: A digital data reproducing circuit for use with a magnetic or optical data storage for detecting and flagging signal level drop-outs in pulse position modulated (PPM) recorded signal levels. Positive and negative peak amplitudes of a self-clocking PPM coded signal are compared to positive and negative valid information peak detectors to detect the clock and PPM data. Lower peak (in absolute terms) amplitudes that fall from the normal signal levels at the start of a drop-out and/or rise at the end of the drop-out, are detected by positive and negative drop-out peak detectors. The positive and negative drop-out peak detectors are inhibited when valid clock and data peak pulses are detected.

Abstract: A method of and apparatus for decoding data from positive and negative pulses of an encoded pulse train, e.g. a NRZ pulse train for PPM encoding, wherein the recorded data is subject to drop-outs and drop-ins. Data bits are decoded from valid positive and negative pulses exceeding positive and negative peak pulse thresholds. Drop-outs are identified in the encoded pulse train as a function of read out positive and negative pulse magnitudes not exceeding positive and negative thresholds, and drop-out flags are provided in lieu of the respective positive and negative pulses. Decoded data bit signs are stored in memory locations, and drop-out flags are stored in memory locations in relation to the stored data bit signs such that the beginning and/or end of a drop-out in the encoded pulse train is indicated. Drop-out flags are also stored in response to the occurrence of two successive valid positive pulses or two successive valid negative pulses in the pulse train.

Abstract: A magnetoresistive magnetic field sensor with a very long active region and a transduction signal of adequate power is achieved without the need to substantially increase voltage or current densities. The sensor is subdivided into multiple sub-elements which are connected in parallel. The transduction signal is produced from the sum of the changes in voltage across each of the sub-elements.

Abstract: A self-aligning configuration for establishing precisely where each of any number of tracks is to be recorded on a magnetic tape, utilizes therefor a photosensitive element (of perhaps even coarser structure than that of a given track), the signal output of which constitutes a measure of the location of the track(s). Thereafter, tracking control, say during playback, is pursuant to such signal, which is memorized.