Abstract: A multistage dissolved air flotation and advanced oxidation (MDAF-AO) system/method with multi-functions in oil recovery, solids removal, emulsion breaking, and advanced oxidation. Influent, with oil and suspended solids, enters a first stage for oil recovery includes a gas ionizer and an air dissolving pump. A second stage includes of two coagulation/flotation compartments connected in serial to enhance solids removal efficiencies. Micro air bubbles are created by air dissolving pumps in each compartment. A third stage is for the emulsion breaking unit to further remove or recover the emulsified oils. A fourth stage includes advanced oxidation by using ultraviolet (UV) and hydrogen peroxide to oxidize and disinfect the bacteria and microorganisms.

Abstract: A tent door panel assembly incorporating a pliable, soft material operatively connected to collapsible tubular frame to define an internal swinging door. The door panel of pliable material may be connected to the door opening or vestibule opening of the tent using well known attachment mechanisms. The collapsible tubular frame may be disassembled and reassembled for removal and portability.

Abstract: A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radially expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by spring biased axial compression.

Abstract: A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radially expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by spring biased axial compression.

Abstract: A vacuum sweeper is cantilevered to a hinged bracket mounted to the front of a conventional automatic floor scrubber. The sweeper includes a vacuum head, an overlying debris ramp, and two vertically rotating, conical brushes having their base ends in contact with the floor. The base end of the conical brushes sweep a path at the edge of the vacuum sweeper in excess of the width of the scrubber. The entire vacuum sweeper apparatus is mounted for vertical excursion relative to the cantilevered mount to the hinge bracket to enable up and down excursion of the sweeper and vacuum responsive to either scrubber motion or inevitable floor irregularities encountered during floor scrubbing. Where vacuuming is not required in advance of scrubbing, such as during double scrubbing or floor stripping cycles, provision is made to hinge the vacuum sweeper upwardly away from floor engagement. A ramp is used in conjunction with the vacuum for collecting large debris.

Abstract: A pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith. The pipe plug is preferably configurable from a non-sealing configuration wherein radailly expandable seals are relaxed by application of pressure from a compressed fluid, to a spring biased sealing configuration automatically upon release of the pressure. A positive seal is automatically formed and maintained by spring biased axial compression.

Abstract: The car wash water reclamation system treats car wash wastewater that is contaminated with sediment, odors and bacteria so the water can be reclaimed and recycled through the car wash system for reuse. The car wash reclamation system uses a multi-step process to first remove odors and bacteria from the car wash wastewater, then remove heavy sand and grit, prior to final filtration to remove the small diameter particulate matter from the car wash wastewater. Upon completion of the entire cycle, the treated wastewater is clean enough to be reclaimed and used again in the car wash.

Abstract: Apparatus (10) for the removal of a needle assembly A having a needle hub H which is screw-threadedly engaged with a syringe S, said apparatus (10) comprising a housing (11) having an opening (16) for insertion of the needle assembly A and adjacent portion of the syringe, a socket (19) mounted within the housing (11) in alignment with the opening (16) with a cavity (22) shaped to receive the hub H and a coaxial through-bore (23) to accommodate the needle. The socket (19) holds the hub rotationally fast allowing the syringe S and needle assembly A to be unscrewed, and an ejector means (51) located in the housing ejects the unscrewed needle assembly A from the socket (19) into a collection container (42) located within the housing (11).

Abstract: The present multi-stage photo-catalytic oxidation fluid treatment system that uses a plurality of modules to implement an efficient, scalable and cost effective fluid treatment process to remove contaminants from a fluid. The multi-stage photo-catalytic oxidation fluid treatment system relies on mechanical and electronic elements, instead of chemicals, to treat the fluid that is input to the system and provide enhanced treatment of the contaminated fluid. The use of ozone and ions causes reactions with the contaminants that are contained in the fluid to purge the contaminants from the fluid or convert the contaminants to a form where they can be removed from the fluid or are rendered harmless.

Abstract: A vacuum sweeper is cantilevered to a hinged bracket mounted to the front of a conventional automatic floor scrubber. The sweeper includes a vacuum head, an overlying debris ramp, and two vertically rotating, conical brushes having their base ends in contact with the floor. The base end of the conical brushes sweep a path at the edge of the vacuum sweeper in excess of the width of the scrubber. The entire vacuum sweeper apparatus is mounted for vertical excursion relative to the cantilevered mount to the hinge bracket to enable up and down excursion of the sweeper and vacuum responsive to either scrubber motion or inevitable floor irregularities encountered during floor scrubbing. Where vacuuming is not required in advance of scrubbing, such as during double scrubbing or floor stripping cycles, provision is made to hinge the vacuum sweeper upwardly away from floor engagement. A ramp is used in conjunction with the vacuum for collecting large debris.

Abstract: A beer container comprises an inner hollow shell of blow moulded PET to hold beer, an outer hollow shell of moulded high density polyethylene enclosing and supporting the inner shell and a spear structure including a dispenser tube extending from a bottom interior region of the inner shell through to a dispensing outlet at the top of the outer shell. The spear structure incorporates valves for supply of pressurizing gas into the interior of inner shell and for dispensing beer through the dispensing outlet, both valves being formed of PET. When the container has been emptied of beer, the outer shell can readily be separated from the inner shell and spear structure to allow separate recycling of the high density polyethylene material and the PET material.

Abstract: A high speed propane power buffer is provided with a dust evacuation system. A peripheral skirt is telescopically depended from a hood overlying the high speed rotating buffer pad. This skirt, at the extremity adjacent the surface to be polished, is supplied with angularly inclined grooves sloped away from the radial disposition with respect to the buffer. These angularly inclined grooves slope from the outside of the skirt to the inside of the skirt in the direction of buffer disc rotation at the disc periphery and are maintained by the telescoping skirt immediately adjacent the surface being polished. Entrained air is drawn at the surface being polished in the direction of buffer disc rotation from the outside of the skirt to the inside of the skirt through the slanting louvers establishing a buffer dust confining boundary at the depending peripheral skirt immediately adjacent the floor.

Abstract: A pigment composition comprising pigment and at least 5% by weight based on the weight of composition of a complex formed from one or more non ionic polyether surfactants based on ethylene oxide and a polymeric carboxylic acid having a molecular weight of at least 1500.