Abstract: An apparatus for extruding a mass onto a moving support mechanism. A first cylinder for receiving the mass within its interior has an exit channel through which the mass is forced. A second cylinder is disposed about the first cylinder for relative rotation with respect to the first cylinder. The second cylinder includes a plurality of forming channels which repeatedly aligned with the exit channel of the first cylinder during relative rotation of the cylinders and through which the mass is forced. A plurality of nozzles are formed in the outer surface of the second cylinder and are shaped and arranged for guiding the excess mass away from the exit ends of the forming channels during at least a portion of the rotational movement of said second cylinder and for guiding the excess mass into the extruded mass at the extruding position of the apparatus.

Abstract: An improved method of making a more comfortable and easily recyclable body for a vehicle seat component using thermoplastic polymeric fibers is described. This method produces a body of thermoplastic polymeric fibers consisting of zones of different densities.

Abstract: A process for separating scandium from an aqueous solution comprised of a first group of metals, scandium and a second group of metals includes the steps of: (a) providing a scandium-containing material and preparing therefrom an aqueous sulfuric acid solution containing a first group of metals, scandium and a second group of metals; (b) contacting the aqueous sulfuric acid solution with an organic liquid solution whereby scandium and the first and second groups of metals are extracted into the organic liquid solution to create a loaded organic solution; (c) scrubbing the loaded organic liquid solution first with an sulfuric acid solution to remove selected metals in the first group of metals from the organic liquid solution and then with a dilute HF solution to prepare the organic liquid solution for stripping; (d) stripping the remaining metals in the first group of metals from the loaded organic liquid solution with a HF solution so that only scandium and the second group of metals remain on the organic li

Abstract: A method for recovering carboxylic acids from a dilute aqueous solution thereof having a concentration below about ten percent (10%) by weight, which includes passing the dilute acid solution through a reverse osmosis separator, thereby producing a permeate substantially free of acid and a retentate having an acid concentration above about ten percent (10%) by weight. The retentate is contacted with a liquid extractant for acids to produce an acid-rich extractate and an acid-free raffinate. The acid is then recovered from the acid-rich extractate.

Abstract: A method of filtering solids from the effluent from a wastewater collection container such as a septic tank is disclosed. A mesh screen filter is immersed in wastewater having a concentration of waste solids which have been allowed to distribute into a scum layer and a sludge layer with a horizontal layer of liquid therebetween. The filter is surrounded with a housing, and the interior surface of the housing is exposed to the horizontal layer of liquid through a plurality of apertures in the housing. Liquid from the horizontal layer flows through the apertures into the housing and thereafter the liquid flows from one side of the filter to an opposite side thereof through a mesh screen filtering surface area greater than the interior surface area of the housing. Thereafter, the liquid flows through a liquid effluent outlet of the container. This filter is very efficient and consequently provides a high quality effluent, while resisting clogging and resultant collapse of the mesh screen surface area.

Abstract: A process for producing a casting ceramic including water glass and a powder containing silicon and aluminum, includes mixing epoxy resin based on bisphenol-A into a casting ceramic to reduce open porosity. The casting ceramic is subsequently subjected to at least one heat treatment.

Abstract: Containers are transported on rotatable support plates which are arranged in a circle on a rotating turntable. The leading edge of a label is adhered to a container as it orbits past a vacuum-type label transfer drum. A curved guide which is tangential to the cylindrical body of the container as the orbiting and rotating container passes it causes the label to wrap completely around the container. One of a circular array of heat sealing elements which are rotating with the turntable adjacent each support plate is cammed radially outwardly of the turntable into contact with the region on the container where the trailing end overlaps the leading end of the cable. This fuses the ends of the labels together. The cam profile is adjustable in length to keep the time during which the heat sealing member is in contact with the label ends overlap constant independently of the rotational speed of the turntable.

Abstract: A spiral-wound filtration cartridge, which renders the need for brine seals unnecessary, is disclosed. The spiral cartridges of the invention comprise a spirally-wound inner filtration assembly having an impermeable outer cylindrical surface, a housing having a cylindrical cavity formed therein for receiving the inner filtration assembly, and at least one continuous longitudinally-oriented fluid pathway disposed between the inner filtration assembly and the housing, the fluid pathway allowing for a portion of a fluid entering one end of the filtration cartridge to bypass the inner filtration assembly and proceed to the other end of the filtration cartridge.

Abstract: A tandem waterwheel type trommel apparatus having a laterally-disposed drain-off drum and a laterally-disposed classifying drum combined through a short pipe to form a main body, which is rotatably disposed on a base and is connected to a drive unit. A front end plate and a rear end plate each having a doughnut-like shape are respectively provided at the front and rear ends the drain-off drum. A plurality of buckets are provided in the drain-off drum, and gutters are provided on the back side of upper end portions of the buckets. The gutters communicate with drain holes formed in the rear end plate. A fixed shoot is provided which extends through the drain-off drum to the classifying drum. The classifying drum has a cylindrical portion and a truncated-cone portion. A circumferential member of truncated-cone portion is made porous while a circumferential member of the cylindrical portion is formed of a wire netting. A screw is provided on the outer circumferential surface of the cylindrical portion.

Abstract: Drip chambers and expansion chambers for the transfer of blood are disclosed, including a housing, an entry port in the upper portion of the housing, an exit port in the lower portion of the housing, and at least one filter integral with either the upper or lower housing portions. Methods for manufacturing these chambers are also disclosed.

Abstract: The disclosure describes an apparatus for treating fountain solution which comprises a recirculation assembly and a microporous filter assembly. The recirculation assembly disconnected between the outlet and inlet of a fountain solution tray of a printing system. The recirculation assembly includes a fountain solution sump and a return line which extends from the outlet of the fountain solution tray to the sump. The microporous filter assembly is positioned in the sump or in the return line and includes a filter position across a fountain solution flow path and having a removal rating of at least about 99.98% at about 20 microns or finer.

Abstract: A disposable box filter having a housing comprising mating channel-shaped male and female portions defining a generally box-shaped fluid chamber, with a pair of fluid ports, and a filter element in corrugated sheet form extending across the fluid chamber. The corrugated filter has generally vertically extending pleats or extremities which are mechanically sealed at each end between a pair of vertical axially extending portions of the filter housing.

Abstract: A novel apparatus for isolating solids, slurries or wetcakes from fluids is disclosed. Said apparatus comprises an extruder having a dynamic seal and a barrel comprising a slip joint and a floating auger which allows for solid recovery under pressure in the absence of substantial solvent volatilization.

Abstract: A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the water being filtered. The water filter further includes a check valve assembly to relieve pressure buildup inside the pump. A unique lever-action handle, in combination with a rocking piston, allows efficient filtering with few moving parts. The filter components are easily replaceable. The main filter assembly is suspended resiliently at its periphery to provide shock-absorbing characteristics. The filter also includes an adaptor base which allows for a direct connect between the vessel into which water is filter. The water filter also provides a unique method of storing the inlet hose to render the water filter easy to carry and prevent foreign objects and debris from entering into the area of working parts.

Abstract: This invention generally provides a process and apparatus for the separation of oil or fat from food particles, carbohydrate matrices and crumbs in a continuous process, and for the reuse and/or recycling of the separated oil or fat. This invention more particularly provides an apparatus and a process in which the crumbs are mixed with hot water and agitated for a predetermined time, after which the agitated mixture is introduced into a non-turbulent container where the oil/fat, the water and the crumbs are allowed to stratify. Upon stratification, a high quality oil/fat separates and rises based on its relative buoyancy and can then be removed and reused. The water and the crumbs also separate by stratification and can also be similarly removed.

Abstract: A filter assembly adapted for connection between fluid supply and delivery lines to filter fluid flowing therethrough includes a replaceable filter cartridge having at one end concentric entrance and exit passages confined within an axially outwardly projecting annular wall and a mounting head having inlet and outlet ports adapted for substantially fixed connection to the supply and delivery lines, respectively. The mounting head has a cylindrical recess for sealingly receiving the annular wall of the filter cartridge therein, and the filter cartridge and the mounting head each have complementary interfitting ears and lugs thereon for permitting quick locked connection and unlocked disconnection of the filter cartridge to and from the mounting head incident to axial rotation of the filter cartridge in opposite directions, respectively, relative to the mounting head.

Abstract: Disclosed is a continuous process of non-compressively and uniformly applying a liquid saturant throughout a permeable sheet. The process includes the steps of: 1) providing a continuously advancing permeable sheet having a first surface and a second surface, 2) depositing a substantially laminar flowing curtain of a liquid saturant generally across and onto the first surface of the continuously advancing permeable sheet, 3) applying a vacuum to the second surface of the continuously advancing permeable sheet, and 4) drawing a substantial portion of the liquid saturant through the permeable sheet to generate a substantially uniform distribution of liquid saturant throughout the permeable sheet. The process may also include the step of drying the liquid saturated permeable sheet. The dry bulk of the liquid saturant treated permeable sheet may be within about 15 percent of the dry bulk of an identical untreated permeable sheet.

Abstract: A rotating drum divided in axial spaced compartments with one of the compartments includes paddles and coalescing material to separate the fluid from the liquid and the other compartment includes stationary oil pumping and water pumping means and an energy recovery means for effectively separating fluid such as oil from liquid such a water. Another embodiment includes a simplified version of the fluid/liquid separator adapted for zero gravity environment and includes means for purging the lines from air prior to pumping the liquid. An electrical sensing circuit including conductivity sensors or an electronic controller including pressure sensors serve to control the rate of removal of the separated component or controlling said purging means.

Abstract: A bag filter assembly utilizing a conventional housing and end cap construction includes a unique filter bag retaining cage and end cap adaptor which allow the use of replaceable bag filter elements of widely varying construction. The assembly will accommodate bag filter elements of the type having a shape retaining opening of rigid construction and including a shape-retaining bottom end cap or of the type comprising a generally continuous flexible tubular sleeve. The system is tolerant of the latter type of bag filters of substantially varying thicknesses.

Abstract: A process for filtering polymer melt which minimizes the generation of dead zones in the filter and provides uniform residence time and accurate temperature control. The process is carried out in an apparatus comprising a plurality of heat exchanger pipes, each enclosing a filter cartridge surrounded by an annular space which terminates at its upper end in a plurality of narrow channels. The molten polymer is charged into the annular space and divided into primary and secondary streams. The primary stream flows through the filter cartridge and the secondary stream, which constitutes 0.03 to 3.0 weight percent of the weight of the combined streams, flows through the narrow channels, whereupon the streams are combined and discharged from the apparatus. The discharge temperature of the polymer is maintained within .+-.1.degree. C. of the charging temperature and the heat exchanger fluid enters the apparatus at a temperature within 1.degree. and 5.degree.C. of the temperature of the melt.