Abstract: A biological wastewater treatment process and modular apparatus wherein activated sludge is recirculated in all of aeration, fluidized bed and return sludge phases in the apparatus.

Abstract: A telescoping leg for a firearm, the telescoping leg including a housing, a first telescoping portion mounted inside the housing, means for extending the first telescoping portion a second telescoping portion mounted inside the first telescoping portion, and means for extending the second telescoping portion.

Abstract: A telescoping stock for a firearm, the stock including a stock body having an upper mounting rail, a buffer tube holder for receiving a firearm buffer tube, the buffer tube holder having a complementary mounting rail, and locking means for selectably locking the buffer tube holder in any one of a plurality of positions relative to the stock body. Preferably, the telescoping stock also includes a telescoping cheek rest.

Abstract: A safety bathtub including at least one upstanding wall; and a built-in thermometer in the wall, the thermometer including a measuring portion and a scale portion, and the thermometer being mounted such that the measuring portion is immersed in water when the bathtub has water in it, and the scale portion is out of the water when the bathtub has water in it, for continual monitoring from outside and above the bathtub.

Abstract: A rail connector and method for mounting on a firearm having a front sight, the connector including at least two mounting rails, and a fastening member for securely fastening the connector directly to the front sight of the firearm, the fastening member being coupled to the mounting rails.

Abstract: A flashlight mount, and a method for mounting a flashlight, for a rifle having a barrel and a mounting rail coupled to the barrel, the flashlight mount including a frame having a bore for receiving a flashlight, the frame defining a substantially flattened bottom surface, and a base for mounting along the mounting rail, the base being distanced from the frame, thereby creating a finger-receiving aperture therebetween.

Abstract: Magnetic conditioning of fluids and gases flowing through a conduit or other containment vessel to achieve essentially uniform characteristics of said fluids and gases for the purposes of improved operation efficiency and performance quality of mechanisms and systems dependent on these liquids and gases. Specifically, the invention pertains to a combined application of advanced techniques including 1) use of magnets, preferably high flux density stabilized anisotropic magnets, 2) non-uniform flux density pairing, 3) magnetic field focused on an air gap using advanced insulative shielding and parallel alignment control, 4) incremental conditioning and 5) modular design.

Abstract: Apparatus for printing, scanning engraving or cutting a flat horizontal surface, particularly when the surface is of non-standard dimensions or is supplied in an non-standard manner. The apparatus is suitable for following outside electromechanically commanded instruction and contains an instrument for printing, scanning, engraving or cutting in a stepwise manner by being accurately raised and lowered to the surface and a component for treating the surface.

Abstract: An accessory mount, and a method for mounting accessories for a hand held firearm having a barrel and a mounting rail coupled beneath the barrel, the accessory mount including a frame, defining a substantially flattened bottom surface and a track for mounting along the mounting rail, the frame having a cavity for receiving a light, and a bipod mount coupled adjacent the track and behind the light cavity and arranged to hold a bipod having legs which can be folded substantially adjacent the barrel.

Abstract: Amphoteric derivatives of aliphatic polyamines, such as diethylenetriamine or bis (hexamethylene) triamine reacted with long chain fatty acids, esters or triglycerides from various natural or synthetic sources are effective in the softening/texture modification of substrates such as paper, textiles, human skin surfaces and hair tresses, as well as in applications for metal working and lubrication. The polyamines are first reacted with fatty acids, esters or triglycerides derived from various animal, vegetable or synthetic sources ranging in molecular distribution from butyric through erucic acids (e.g. milkfat, soy bean oil, rapeseed oil) to form amidoamines or imidazolines; and are then further reacted with unsaturated or carboxylated epoxy compounds (e.g. acrylic acid, itaconic acid, verndic) to form the various amphoteric structures.

Abstract: A method and apparatus for treating contaminated water are described wherein contaminated natural water or industrial wastewater is treated to remove contaminants in a packaged modular treatment unit.

Abstract: A method for treating heavy metal contaminated soils, particularly those containing hexavalent chromium, which includes a first soil washing at pH 9-12 with an anionic synthetic organic flocculant followed by a liquid-solid phase separation such as by gravity separation including sedimentation, an optional second soil sludge washing at pH 2.5-3.0 with addition of a metal valency reducing agent which when done is followed by a second liquid-solid phase separation using a cationic synthetic organic flocculant, combining the first and second stage liquids and optional treating the liquid phase with a metal valency reduction agent such as sodium metabisulfite under acidic conditions followed by treatment with an alkaline agent to form insoluble metal hydroxide which is separated in a phase separation process and is combined with the final sludge, recycling the liquid from washing stage or stages for use in soil processing, dewatering the separated sludge or sludges using a separation method (e.g.

Abstract: An oral antiplaque composition for treatment of teeth wherein the essential antiplaque agent is a substantially water insoluble noncationic antibacterial phenol containing, relative to the hydroxyl group, an alkyl or cycloalkyl group, preferably tert.-butyl (t-butyl), in the 2-position, and substituents in one or both of the 4- and 5-positions, one or both of which may be alkyl or cycloalkyl, one being preferably t-butyl.