Abstract: A cross-flow filtration system includes a first filter element having a first conduit for receiving a flow of a first aqueous feed stream, a second conduit operable to discharge a flow of first permeate water and a third conduit operable to discharge a flow of first retentate water. The cross-flow filtration system includes a coil assembly disposed about the first conduit. The first coil assembly is operable to subject the first aqueous feed stream to electromagnetic pulses. A second filter element is in fluid communication with the first filter element via the third conduit. The second filter element is operable to receive the first retentate water via the third conduit. A second coil assembly is disposed about the third conduit and is operable to subject the first retentate water to electromagnet pulses.

Abstract: A coating applied to at least a portion of the surfaces of reactors, reactor internals, other reactor components, and/or heater tubes is provided in order to minimize the formation of metal catalyzed coke in hydrocarbon conversion processes operating at temperatures at about 350° C. (662° F.) or greater and in reducing environments. These coatings may comprise Nickel coatings or complexes thereof, such as Ni—Al, Ni—Cr/Cr carbide, as well as aluminum painted coatings that are applied in a reduction cure process (e.g., application temperatures of about 600° C. (1112° F.)). Additionally, where H2S is necessary for the process, such as to minimize thermal cracking, the coatings also reduce corrosion of base metal due to sulfidation attack and eliminate the requirement of continuous replacement of reactor internals and other components.

Abstract: A coating applied to at least a portion of the surfaces of reactors, reactor internals, other reactor components, and/or heater tubes is provided in order to minimize the formation of metal catalyzed coke in hydrocarbon conversion processes operating at temperatures at about 350° C. (662° F.) or greater and in reducing environments. These coatings may comprise Nickel coatings or complexes thereof, such as Ni—Al, Ni—Cr/Cr carbide, as well as aluminum painted coatings that are applied in a reduction cure process (e.g., application temperatures of about 600° C. (1112° F.)). Additionally, where H2S is necessary for the process, such as to minimize thermal cracking, the coatings also reduce corrosion of base metal due to sulfidation attack and eliminate the requirement of continuous replacement of reactor internals and other components.

Abstract: A fluid feed stream is flowed, subject to electromagnetic pulses, to a filter element via an input feed conduit for the filter element. A coil assembly is disposed about the input feed conduit and an AC power source is connected with the coil assembly. The AC power source has a period including first and second half-cycles of opposing polarities. A switch in series with the coil assembly forms a series connected circuit. A second switch connected with the coil assembly forms a second circuit. A control means closes the first switch and opens the second switch during a first half-cycle of the AC power source. During a second half-cycle, the control means closes and then opens the second switch to produce a first large ringing pulse in the coil assembly. A subsequent pulse may be produced either before or after the first pulse substantially decays.

Abstract: An improved end face seal assembly comprises a wall mounted seat assembly having an axial sealing end face and an abutting shaft mounted sealing head assembly having an axial sealing end face slidably engaged therewith to provide a primary dynamic seal. The seat assembly has a peripheral O-ring to provide a secondary static seal at the wall mounting. The sealing head assembly comprises a cup shaped cylindrical retainer mounted on a rotating shaft by set screws. Contained within the retainer are a plurality of compression springs, a flat cylindrical disc, and a cylindrical washer. The washer having a sealing end face at one end and a counterbore at the other is captured in the retainer by a snap ring in the retainer engaging an annular shoulder on the washer. A cylindrical O-ring holder having an external O-ring and two internal O-rings provides a secondary seal between the shaft and washer.

Abstract: A novel fingernail hone consists of a body of unglazed ceramic material having a honing or polishing surface in the form of a concave surface which is unglazed and of substantially spherical curvature. The ceramic material is preferably in the form of an elongated stick, preferably of cylindrical shape, with the concave unglazed surface in either or both ends. An alternate embodiment may include a sharpening or polishing notch in one end or extending longitudinally of the cylindrical surface of the ceramic stick.

Abstract: A seal device adapted to be disposed between two surfaces, usually a shaft surface and a mechanical seal and a method for repair of a shaft and the like, wherein the shaft is formed having a longitudinal taper for receiving a seal to be snugly fitted thereabout such taper, the preferred form of such seal being suitable for mounting with a shaft and including a method for repairing a surface of the shaft which has become worn, corroded or otherwise unsuitable for providing a sealing surface to cooperate with a mechanical seal.

Abstract: A tongue toothbrush adapted to be mounted with the tongue both for loosening particulate matter entrapped between the teeth and for cleansing the teeth.