Abstract: A post structure is axially formed with a plurality of elongated grooves which are not in communication with one another, and a plurality of accessories can be inserted directly into the elongated grooves in the lateral direction. And the accessories are assembled on the post by using a plurality of locking members, thereby making the assembly of the post structure easy and quick.

Abstract: A protector for the inlet into a sewer system includes a straight or annular, porous tubular casing for placing on or around the periphery of a sewer grate; a skirt extending inwardly or outwardly from the bottom of the casing for overlapping the side edges of a sewer opening so the grate retains the protector in the use position; and a filler in the casing for maintaining the casing in an expanded condition, at least one of the casing, the skirt and the filler being permeable to water and impermeable to contaminants, whereby water can flow into the system while contaminants are blocked.

Abstract: A toner release agent delivery system for a printing device utilizes a roller which has a plurality of layers of a non-woven textile web. The textile web is comprised of substantially all sub-denier fibers. The release agent delivery system with predominately sub-denier fibers has a very high release agent retention capability with a very low leak rate.

Abstract: A composite non-woven needlefelt ink absorber that is particularly suited for use with an ink jet printer to absorb and disperse waste ink utilizes at least two distinct layers. The layer initially contacted by the ink is low density/course denier. The final ink receiving and retaining layer is high density/fine denier. Any intermediate layers are also intermediate in density and denier.

Abstract: According to certain embodiments of the present invention, there is disclosed herein a method and system of recovering concrete which includes admitting a concrete slurry to a tank, pressurizing the tank with a fluid under pressure, discharging through a discharge line the pressurized fluid-slurry from the tank, cleaning the tank by admitting a cleaning liquid into the tank after discharging fluid-slurry therefrom, and discharging the cleaning liquid from the tank through the discharge line for cleaning purposes.

Abstract: According to certain embodiments of the present invention, there is disclosed herein a method and system of recovering concrete which includes admitting a concrete slurry to a tank, pressurizing the tank with a fluid under pressure, discharging through a discharge line the pressurized fluid-slurry from the tank, cleaning the tank by admitting a cleaning liquid into the tank after discharging fluid-slurry therefrom, and discharging the cleaning liquid from the tank through the discharge line for cleaning purposes.

Abstract: A release agent delivery system for an electrophotographic printing process utilizes a web which is a non-woven textile comprised of substantially all sub-denier fibers. The release agent delivery system using the textile produced with predominantly sub-denier fibers, creates finer oil flow patterns which yield improved print quality though decreased microscopic streaking.

Abstract: A cleaning element (1) for use in the fuser section of electrostatographic reproduction or printing apparatus. The element includes projections projecting from an outer surface to form a pile (5). The cross section of each projection has a cross section having a peripheral dimension and an area. The ratio of the peripheral dimension and area is greater than the same ratio for a projection of circular or substantially circular and equal area of cross section. The projections may be formed by tri-lobal fibres.

Abstract: A textile material whose fibers have been coated, at least in part, with fluorocarbon particles is usable in an electrophotographic printing machine to clean toner particles off a fuser roll, and to supply a toner release agent to the fuser roll. The textile material can include woven goods, as well as non-woven felts and the like. The resultant product has reduced friction and decreased fiber shedding.

Abstract: A video processor receives a video signal and shifts and accentuates the signal in order to increase the apparent depth and resolution of the signal. The circuit operates to accentuate the interface between low luminance and high luminance portions of a video signal as a function of the slope of the video signal. The accentuated signal is also shifted by a slight amount and is then recombined with the original unmodified video signal. The result is substantially improved picture quality with the use of a minimal number of components.

Abstract: A ceramic support for the fixation of microorganisms thereto consists of a silico-aluminate having 5-25% magnesia and an average granulometry of 5-300 microns, with the coarsest grains being no more than two times the diameter of the finest grains, and preferably less than 1.5 times the diameter of the smallest grains. This support, which is suitably obtained by calcining a mixture of kaolinic clay and talc or magnesium carbonate and containing no more than 50% cordierite, then grinding and sintering to the desired granulometric distribution, is particularly desirable in the fixing thereto of hybridomas to produce monoclonal antibodies, or biological catalysts.